Abstract
The impact of implicit leadership theories on performance and the mechanism linking them have received insufficient theoretical and research attention. Drawing on Bandura's social cognitive theory, the present study contributes theory through examining the assertion that higher congruence between followers' implicit leadership theory and the characteristics of supervisors enhance job performance through higher quality of leader–member exchange and self-efficacy. Moreover, in the proposed model, attachment insecurity was considered as the antecedent of the congruence and leader–member exchange in addition to the moderator of the relationship between them. Capitalizing upon Structural Equation Modeling (SEM), this study tested the model in a field study using a sample of employees in knowledge-oriented firms in Iran. The results suggest that the congruence between followers' implicit leadership theory and the characteristics of supervisors does not directly impact performance and leader–member exchange and self-efficacy are the full mediators. The results also showed that attachment insecurity is the predictor of neither the congruence nor the leader–member exchange. Additionally, attachment insecurity moderates the relationship between these two variables in a way that when attachment insecurity is high, the congruence has more positive impact on leader–member exchange.
Keywords
Introduction
In recent years, there has been an increasing investigative interest in follower-centered leadership (Shamir, 2007; Junker & van Dick, 2014) and hence, a growing amount of research has studied implicit leadership theories (ILTs). ILTs refer to some schemas and cognitive structures specifying the abilities and traits characterizing a business leader (Epitropaki & Martin, 2005). Witnessing and feeling the possession of ILTs in supervisors can impact an array of work variables such as job satisfaction, well-being, affective commitment, and leader–member exchange (LMX) (Engle & Lord, 1997; Epitropaki & Martin, 2005; Topakas, 2011). As for the mechanisms linking ILTs to job outcomes, a few studies have explored the antecedents, mediators, and moderators (Epitropaki, Sy, Martin, Tram-Quon, & Topakas, 2013).
Despite the emerging literature, no empirical research has yet introduced self-efficacy as the potential mediator bridging the relationship between the congruence of followers' ILTs about a leader in general and their recognized ILTs for their current supervisors and follower performance. Second, despite the provision of a theoretical framework connecting follower attachment styles (anxious, avoidant, and secure) and ILTs by Keller (2003), no research has empirically validated the proposed framework. Third, attachment theory, as a leading theoretical framework established to investigate individuals' differences in close relationships and leadership (Gillath, Karantzas, & Fraley, 2016; Richards & Hackett, 2012), has the power to function to moderate the relationship between leaders and followers after the picture of a supervisor as a leader or nonleader is solidified.
This study aims to void these gaps by, first, introducing attachment insecurity as the antecedent of the supervisor-leader match (based on ILTs) and the moderator on the relationship between this match and LMX and, second, investigating how the two mediators of LMX and self-efficacy mediate the relationship between supervisor-leader congruence and follower job performance.
ILTs and job performance
Leadership is a prevailing social phenomenon; therefore, both experts and laypeople create and develop mental characteristics distinguishing leaders. Explicit theories (e.g., LMX, transformational leadership and transactional leadership) are devised by scientists through scientific data and observations; whereas, implicit theories (e.g., ILTs) are constructed in the minds of people regardless of their education, knowledge, and expertise (Levy, Chiu, & Hong, 2006). The knowledge structures defining leadership in the minds of people are called ILTs (Eden, 1992; Lord & Maher, 1991).
Leadership categorization theory (Lord, Foti, & De Vader, 1984) is rooted in social cognitive theory, positing that followers possess a mental depiction of a leader via prototypes. This provides a background for the followers to make a comparison between actual people and these prototypes to give a verdict if they are (ideal) leaders or not (Lord & Maher, 1991; Shondrick & Lord, 2010). The extent to which this match can be verified determines the level of leader power (Maurer & Lord, 1991). Additionally, ILTs are some cognitive representations utilized for “sensemaking” (Weick, 1995); therefore, they create expectations of individuals and also act as a simplification mechanism to free cognitive resources to be employed for more important tasks such as problem-solving and coordination (Dinh & Lord, 2010). Research has shown that the consideration of leader as the owner of followers' ILTs can positively impact the quality and amount of attributed influence and even charisma (Maurer & Lord, 1991). One can sensibly think of these attributions of power due to the overlap between employees' ILTs and managers' traits, characteristics and behavior as the vehicle to increase their expectations of receiving positive outcomes and rewards due to their association with such a manager.
From one point of view, heightened expectations are likely to alter employee perceptions more pervasively regarding their work environment, job attitudes, and performance. Taken from a different angle, when one is accepted as a leader, the followers reciprocate via openness toward the leaders' actions (van Quaquebeke & Brodbeck, 2008) and mental confirmation of leader's effectiveness (Giessner & van Knippenberg, 2008). Both, followers' reverence and perception about the effectiveness of leader initiate the welcoming of leaders' influence, which is the core to leadership effectiveness (Hollander, 2006; Yukl, 2010). Leaders' influence, in return, manifests itself in followers' behavior or performance (van Knippenberg, 2011).
The mediating role of LMX
Based on LMX theory, leaders categorize followers into two groups of in-groups and out-groups. For the former, the employees have high-quality relationships with their leaders and are privileged to access a bigger share of leader's attention, resources, and support than do the ones in the latter whose relationships of less quality. From the perspective of leadership, the approach investigating the quality of the dyadic relationship between a leader and a follower (LMX) has been popular.
Having roots in social exchange theory (Blau, 1964) and role theory (Merton, 1968), LMX concentrates on the dyadic exchange between leaders and followers in addition to the process of relationship development. Graen and Uhl-Bien (1995) pointed out that “LMX clearly incorporates an operationalization of a relation-based approach to leadership” (p. 109), which is based on the benefits of both sides (Graen & Uhl-Bien, 1995). Graen and colleagues pioneered the classification of exchange quality between leaders and followers (see Dansereau, Graen, & Haga, 1975; Graen & Cashman, 1975), which differentiates in-group members from out-group members. The former receives more support and resources while the latter possess less freedom in role development and have little power in decision making.
This dichotomy causes a wide array of work-related consequences. Gerstner and Day's (1997) meta-analysis showed that LMX is correlated with performance, job satisfaction with one's supervisor, organizational commitment, overall satisfaction, and follower's competence level. In the most recent meta-analysis, Martin, Guillaume, Thomas, Lee, and Epitropaki (2016) demonstrated that there is a positive relationship between LMX and objective task performance. Some other positive job outcomes are employee well-being (Epitropaki & Martin, 2005), self-efficacy (Murphy & Ensher, 1999), lower levels of followers' stress (e.g., Bernas & Major, 2000), empowerment (Keller & Dansereau, 1995), and perceptions of transformational leadership style (Howell & Hall-Merenda, 1999). High-quality relationship between leaders and followers can lead to higher organizational citizenship behavior (Ilies, Nahrgang, & Morgeson, 2007), time and effort invested in the job (Liden & Graen, 1980), and innovation (Tierney, Farmer, & Graen, 1999).
A plethora of research has explored the predictors of LMX quality. In one classification, Martin, Epitropaki, Thomas, and Topokas (2010) put the antecedents in four groups of leader characteristics, subordinate characteristics, interactional variables, and contextual factors. As examples of subordinate characteristics, follower's personality (Bernerth, Armenakis, Field, Giles, & Walker, 2008; Lapierre & Hacket, 2007) is positively related to LMX. In terms of interactional variables, leader and subordinate liking (Martin et al., 2010) is positively associated with LMX. In a study, Nahrgang, Morgeson, and Ilies (2009) found out that leader personality predicts LMX. As a more pertinent study, researchers have shown that the congruence between implicit and explicit leadership theories can positively impact LMX quality (Epitropaki & Martin, 2005; Topakas, 2011).
The mediating role of self-efficacy
Self-efficacy is rooted in social cognitive theory, which mainly shows people have a tendency to give a direction to their effort through some controllable behaviors leading to desired outcomes (Bandura, 1997). The relationship between performance and self-efficacy has been explored by different researchers. It is widely proved that there is a positive correlation between performance and self-efficacy (Stajkovic & Luthans, 1998). Also, prior performance can boost up a person's self-efficacy (e.g., Bandura, 1997; Mitchell, Hopper, Daniels, George-Falvy, & James, 1994).
Despite being the subject of scrutiny, it is also shown that self-efficacy can positively influence performance (Bandura, 1997) via controlling distractions and disruptive thoughts leading to more focus on tasks (Kanfer & Ackerman, 1996), standing against obstacles and failure (e.g., Cervone & Peake, 1986), using strategies effectively (e.g., Bandura & Wood, 1989), higher goal setting (Bandura, 1997; Bouffard-Bouchard, 1990), goal commitment (Locke & Latham, 1990) in different realms of academic settings (Multon, Brown, & Lent, 1991), health functioning (Holden, 1992), work organizations (Stajkovic & Luthans, 1998), and athletics (Moritz, Feltz, Fahrbach, & Mack, 2000).
Social cognitive theory posits that people do not function in isolation and people's environment can shape performance expectations and direct individuals' endeavor (Bandura, 1997). For instance, Eden, Ganzach, Flumin-Granat, and Zigman (2010) demonstrated that admiring systems' superior technology could decline the time of filing entitlement claims by 43.5%. Bearing this notion in mind, in this research, we focus on interpersonal self-efficacy, identification with leader, and the perception of transformational leadership to justify the mediating role of self-efficacy.
Individuals influencing a focal task are the critical building blocks of a task environment and therefore can boost up performance in conjunction with self-efficacy (Emich, 2012). However, prior research done to explore the relationship between self-efficacy and performance shows contradictory results. In interdependent task outcome, because of the interconnection of skills to do the task, the performance is contingent upon the perception of partners' skills (Kerr, Messe, Park, & Sambolec, 2005; Kerr & Fleming, 2007), whereas in noninterdependent tasks, due to shared instrumentality, individuals' attempt declines and as a result performance decreases (Karau & Williams, 1993). Since leadership and followership are essentially interdependent (Baker, Mathis, & Stites-Doe, 2011; Hollander, 1992), it is likely that self-efficacy is improved by the perception of leaders' skills.
Bass and Avolio (1989) showed that leadership prototypes correlated the characteristics of transformational leaders. In an international vein, GLOBE project results also bolstered this idea and showed that culturally endorsed implicit leadership theories associated with charismatic/transformational leadership (Den Hartog et al., 1999).
Bandura (1997) posits that role modeling increases self-efficacy. As it was mentioned, self-efficacy is a belief that one has the ability to fulfill a task (Bandura, 1997), whereas relational identification is the extent to which one defines oneself based on a given role-relationship (Sluss & Ashforth, 2007). Modeling is a strategy to provide information on “correct” performance which is not available otherwise (Gist & Mitchell, 1992). Identifying oneself with the high-quality relationship with the leader enables employees to behave aligned with their identity which provides the opportunity for the followers to increase their knowledge, acquire new skills, learn from their leaders, and thereby boost up self-efficacy (Latham, Winters, & Locke, 1994).
According to Sluss and Ashforth (2007), relational identification entails the participation of two sides. This extension from identifying oneself with personal qualities to the inclusion of another's quality is likely to be beneficial through more empathy, mutual understanding, social support, cooperation, and loyalty which can lead to trust as the predictor of knowledge sharing. Isaksen (1983) has already shown that trust and information sharing can foster followers' self-efficacy through escalating the ability to specify the correct course of action. One may argue that high relationship quality with leader can benefit followers through relational identification which can cause followers to incorporate positive relationship into their self-concept and, as a consequence, increase self-efficacy and performance.
Based on self-efficacy theory, individuals receive clue from the environment to evaluate some factors pertinent to themselves and their situations to figure out the availability of resources to accomplish tasks (Gist & Mitchell, 1992). One of these factors is mastery experience or experiencing success repeatedly (Bandura, 1997). High levels of LMX quality increase mastery experience which can bolster self-efficacy (Walumbwa & Hartnell, 2011). Self-efficacy is independently associated with job performance (e.g., Liao & Chuang, 2007; Stajkovic & Luthans, 1998). Since it impacts an individual's goal setting and activates taking up a challenge or activity, the task is believed to be successfully accomplished. Wise selection of situations via the road map of self-efficacy plays a critical role in strong commitment and high aspiration to fulfill expectation.
Attachment styles
Based on the attachment literature, two general types of attachment styles are detectable: secure and insecure (anxious and avoidance attachment). Secure attachment is the consequence of consistent caregiving. In this style, infants are optimistic, have positive views of the self and others, have enough confidence in the availability of support in the times of distress; hence, leading to optimal functioning (Mikulincer, 1995). On the contrary, attachment anxiety features negativity of self-image and overreliance on mutual relationships (Mikulincer & Shaver, 2005) as well as hyper vigilance to social and emotional signals received from others. This germinates from the seeds of distress from separation or rejection and abandonment from the attachment figure.
Being categorized as insecure attachment style, attachment avoidance engenders untrustworthiness and unavailability of others in the times of need (Mikulincer & Shaver, 2005) which causes the “deactivation of proximity seeking, inhabitation of the quest for support and active attempts to handle distress done.” (Mikulincer & Shaver, 2005). Avoidance is the response to the termination of anticipating additional frustration emanating from attachment figure's untrustworthiness. This leads to the denial and suppression of relational importance, attachment needs, abstaining from emotional involvement and intimacy, and finally dismissing of threat-related signals (Mikulincer & Shaver, 2005).
Attachment and the congruence between implicit and explicit leadership theories
Keller (2003) postulated that attachment styles can explain individuals' differences in ILTs. According to Keller and Cacioppe (2001), avoidant leaders (followers) are reluctant to resolve the challenges in relationships, whereas anxious ones show more sensitivity to conflicts for the fear of losing their relationship. Self-verification theory (Swann, 2012) suggests that individuals judge behavior from others which is consistent with their self-concept. Therefore, attachment theory and self-verification theory can provide a solid ground on which the nature of individual's leadership expectations is placed.
Secure adults, believing in the responsiveness of caretakers (leaders), are likely to expect partners as sensitive, supportive, and responsive (Keller & Cacioppe, 2001). Anxiously attached followers think of leaders' trustworthiness and reliability as intermittent. Therefore, they may expect leaders to be sensitive, responsive, and supportive. In this situation, followers maintain their proximity with unreliable figures. Hence, they may inconsistently think of leaders as sensitive, supportive, and responsive. On the other hand, avoidant followers generally do not trust others (Keller, 2003) and are reluctant to invest in others' emotional support (Bartholomew, 1993). Thus, avoidant individuals are likely to construct negative images of leaders due to their nonreceptive and inattentive behavior.
Research has shown that individuals with a secure attachment style have more confidence in others in comparison with those with insecure attachment style (e.g., preoccupied, fearful, and dismissing) (Mikulincer & Shaver, 2007). Moreover, insecurely attached individuals consider others as threat (Hardy & Barkham, 1994). In terms of trust, Harms, Bai, and Han (2016) demonstrated that follower's anxious attachment influence cognitive trust negatively and are skeptical or distrustful of others' intentions, whereas followers with avoidant attachment do not trust people effectively. This lack of trust may cause followers not to rate their current supervisors as the owners of leaders' traits while secure attachment of followers can cause positive views of their leader and that positively impact the rating of current supervisors.
Attachment and LMX
Attachment is likely to be one of the effective precursors of LMX quality since the two theories of attachment and LMX have more common points than differences. Mikulincer and Shaver (2007) have shown that attachment insecurity impacts relation satisfaction negatively. Based on Liden and Maslyn (1998), LMX is shaped through three stages. In the first stage (role taking) dyadic relationship between leader and follower is formed. In the second stage (role making), however, leaders and members get acquainted with each other and set up to exchange resources at personal and professional levels. Finally, in the third stage (routinization), exchanges are more social than transactional. In this stage, high-quality exchange, mutual respect, perceived equity in contribution, positive affect, and loyalty are constructed.
Trust plays a pivotal role in the formation of high-quality LMX during these three stages (e.g., Ferris et al., 2009; Sue-Chan, Au, & Hackett, 2012). Research has shown that propensity to trust and trust in the mutual relationship between coworkers are interconnected (Yakovleva, Reilly, & Werko, 2010) and low propensity as a feature of attachment insecurity can negatively influence LMX and trust building process. Attachment insecurity causes the emergence of a motivational, cognitive, and perceptual dynamism manifesting itself behaviorally in a way which reduces LMX quality and challenges role-taking and role-making (Graen & Scandura, 1987). Seeking dependence and nonautonomy, anxiously attached followers cannot handle and take over increasingly challenging tasks which play a key role in LMX development (Dienesch & Liden, 1986). Based on the development stages of LMX, dependence from followers' side and lack of delegation and persuasion from leaders' side will adversely impact followers' confidence to achieve their tasks successfully which impair LMX quality (Richards & Hackett, 2012).
For more elaboration, attachment avoidance pertains to the preference for solitary jobs, dissatisfaction with colleagues, and working as a means of shunning socializing and conflict prevention (Hardy & Barkham, 1994; Hazan & Shaver, 1990). Such followers deactivate interactions with others and manage to solve problems alone (Cassidy, Werner, Rourke, Zubernis, & Balaraman, 2003). According to self-verification theory, followers high in attachment avoidance are more likely to assign tasks than focusing on relationships and try to fortify their self-identity as “lone wolves.” Moreover, avoidance brings about lack of trust in others and getting stuck in the first stage of LMX development which is purely transactional (Keller & Cacioppe, 2001). Nonresponsiveness and inconsideration of quality relationship as well as inattentive behavior toward the partner can convey the idea that mutual leader–member relation is not respectable and loyal; therefore, affect and relation strengthening factors are not shown to enhance LMX (Dienesch & Liden, 1986).
Attachment insecurity is so pervasive in the relationships and even can impact attitudes and behaviors. Keller (2003) noted that attachment styles of followers have impact on the perceptions of followers about the leader (i.e., ILTs). From another pint of view, attachment styles influence LMX quality (e.g., Richards & Hackett, 2012). In this regard, it is hypothesized that for the followers high in attachment insecurity, the relationship between the rates of accepting current supervisors as a leader and LMX can become less positive due to their rates of both supervisor's leadership and also the perceived quality of their relationship with their current supervisors.
This study aims to examine the mechanism linking the match between the supervisor's and a leader's characteristics (followers' ILTs) through the lenses of followers and their job performance. In this regard, in the proposed model, LMX and self-efficacy are the mediators. Moreover, attachment insecurity is the moderator and predictor of the aforementioned match. The hypotheses guiding this research are the following:
H1: The congruence between followers' ILTs and their recognized ILTs for their current supervisors is positively related to follower job performance. H2: LMX mediates the congruence between followers' ILTs and their recognized ILTs for current supervisors from one side and follower job performance from the other side. H3: Self-efficacy mediates the congruence between followers' ILTs and their recognized ILTs for their current supervisors from one side and follower job performance from the other side. H4: For followers, the congruence between their ILTs and those for their immediate supervisor and attachment insecurity are negatively related. H5: Attachment insecurity is negatively associated with LMX in leader–member dyadic. H6: Attachment insecurity moderates the relationship between the congruence between their ILTs and those for their immediate supervisor and LMX in a way that attachment insecurity makes this relationship less positive.
The conceptual model of this study is shown in Figure 1.
The conceptual model of this study.
Method
Participants and procedure
Two graduated university students were employed to distribute questionnaires among the employees of 141 knowledge-oriented firms in a city in Iran. The list of knowledge-oriented firms and their addresses were obtained from science and technology parks and growth centers. The graduated students distributed their questionnaires among the present employees. The average age of the participants was 38 years (SD = 9.88), and they had worked for the company for an average of 4.22 years (SD = 1.23). Thirty-one percent of the participants were females. The employees interacted with their immediate supervisor on daily basis. Before data collection, the two employed members were trained how to collect data. Three questionnaires were administered and collected in three waves. In the first wave, the employed students visited the knowledge-oriented firms and handed out the first questionnaire to the employees of the firms with unique codes written on the questionnaires representing their names. The participants were assured for the confidentiality of their data. The questionnaires at time 1 contained the measures of demographics, the congruence between their ILTs and those of their current supervisors and self-efficacy. In the first wave, 400 questionnaires were distributed, and after 2 weeks, 350 complete questionnaires were collected. A package containing a pen and a notepad was given to each participant as a reward. The second survey (time 2), containing LMX and attachment questionnaires, was completed by 321 employees (response rate = 0.92).
In order to mitigate the negative impact of context effects, the measures were counter-balanced (Podsakoff, Mackenzie, Lee, & Podsakoff, 2003). Moreover, the second questionnaire was distributed with the lag of six weeks to minimize the impact of transient sources pertaining to common method bias. Some researchers believe that this technique is as effective as source separation (Doty & Glick, 1998). Time 3 survey comprised employee job performance measure and was distributed after a week. This questionnaire was completed by all the supervisors of the employees who had completed both questionnaires at times 1 and 2.
Measures
The questionnaires were originally in English; therefore, they were translated into Persian through an iterate process for which experts of Persian and English were employed. Having been translated back to Persian by one expert, the questions were translated back into English by another one. This method finally proved that both English and Persian versions were comparable with a high level of accuracy (Brislin, 1970).
The congruence between ILTs and those for current supervisors
The 21-item version of the ILTs scale developed out of 41-item scale devised by Offermann, Kennedy, and Wirtz (1994) was utilized to measure ILTs (Epitropaki & Martin, 2004). The degree to which followers perceive their current supervisors as the possessors of their ILTs was measured via Pictorial Venn diagrams (van Quaquebeke, van Knippenberg, & Brodbeck, 2011). It has several advantages: (1) there is no need to have a long list of traits to measure both ILTs and those traits for their current supervisors via verbal options and (2) testing the congruence via polynomial regression has errors in measurement (Topakas, 2011) pictorial measures can help to avoid common item variance in cross-sectional questionnaire studies (Podsakoff et al., 2003). Moreover, several studies have applied this technique and the validity of this approach is verified (e.g., Schubert & Otten, 2002; Shamir & Kark, 2004). To evaluate ILTs, two latent variables of prototypes and anti-prototypes were measured. To assess the fit of the two-factor model, confirmatory factor analysis (CFA) was conducted. Results indicated that the two-factor model fits the data well (χ2/df = 2.76, p ≤ .001; comparative fit index (CFI) = .94; Tucker–Lewis index (TLI) = .93; root mean square error of approximation (RMSEA) = .077). Cronbach's alpha for prototypes and anti-prototypes were 0.96 and 0.92, respectively.
Leader–member exchange
Followers' LMX was measured using the 11-item LMX-MDM from Liden and Maslyn (1998). Liden and Maslyn (1998) have already validated a high-order factor and since this research sought to measure the perception of leader–member relation quality, all items were considered as one variable. Three questions were deleted because of low levels of reliability (less than .7). Participants measured their LMX relationship on a five-point Likert-type scale (1 = strongly disagree to 5 = strongly agree). A sample item is “I respect my supervisor's knowledge and competence in the job.” For this scale, Cronbach's alpha was 0.90.
Self-efficacy
A 10-item scale developed by Riggs, Warka, Babasa, Betancourt, and Hooker (1994) was utilized to measure self-efficacy. The questionnaire evaluates participant's personal work abilities and skills to carry out particular tasks. A sample item is “I have confidence in my ability to do my job.” The answers were based on a five-point Likert scale (1 = very accurate to 6 = very accurate). The coefficient alpha for this study was 0.86.
Job performance
We measured followers' job performance by using the four items developed by Chen, Tsui, and Farh (2002). In order to avoid same source bias, the supervisors were asked to score their subordinate job performance. Sample items of this scale included “S/he always completes job assign/ments on time.” and “His/Her performance always meets the expectations of the supervisor.” This variable was measured based on a five-point Likert-type scale (1 = strongly disagree to 5 = strongly agree). The Cronbach's alpha for this scale was 0.86.
Attachment insecurity
Two constructs of attachment anxiety and avoidance were merged and assessed by a validated 12-item version of Experiences in Close Relationship scale developed by Wei, Russell, Mallinckrodt, and Vogel (2007). Participants rated six questions for attachment anxiety (e.g., “I need a lot of reassurance that I am loved by others.”) and six items to measure avoidance attachment (e.g., “I try to avoid getting too close to others.”) on 7-point scales (1 = strongly disagree to 7 = strongly agree). The Cronbach's alpha for attachment anxiety, attachment avoidance, and attachment insecurity were 0.80, 0.70, and 0.71, respectively.
Control variables
Previous research has demonstrated that followers' gender, age, and tenure can influence employees' perceptions about leader effectiveness, and this in return impacts follower performance (e.g., Riordan, Griffith, & Weatherly, 2003; Schaubroeck, Larn, & Cha, 2007). Therefore, in this study, age, gender, and tenure were controlled.
Analysis procedure
For this research, IBM SPSS Statistics 22 and Amos 22 were used to analyze data. In order to evaluate the strength of linear relationships between study variables, Pearson correlation coefficients were utilized. Before testing the goodness of the proposed model, CFA was used to evaluate the goodness of fit for the measurement model with Amos 22. The indices used to explore fitness were the RMSEA, χ2/df, the TLI, and the CFI. The acceptable range for χ2/df is between 2 and 5 based on previous research (Salisbury, Chin, Gopal, & Newsted, 2002). The threshold of acceptance for CFI and TLI is 0.9 (Salisbury et al., 2002). RMSEA should be less than 0.08 to indicate good data fitness (Byrne, 2006).
To test mediation, bootstrapping analysis was conducted since this method is robust to analyze mediation (Hayes, 2013). Through bootstrapping, a large sample is created from the original data (5000 for this study). In this method, the confidence interval of 95% is determined around the indirect effect, and this internal should exclude zero in order to show a significant indirect effect (Preacher & Hayes, 2008). In order to test the moderation model, hierarchical regression analysis was applied through mean-centering the variables consisting of the interaction term in the moderation analysis (Aiken & West, 1991).
Results
Descriptive statistics, correlations, and reliabilities of the variables in this study.
The Cronbach's alpha values are shown diagonally in parentheses. N = 296.
LMX: leader–member exchange; ILTs: Implicit Leadership Theories. **p < .001
Measurement model
In order to analyze structural equation modeling, Amos software (Arbuckle, 2007) was employed to test the proposed hypotheses. Before analyzing the hypothesized structural model, data fitness of the measurement model was tested (Anderson & Gerbing, 1988), appraising a model comprising of five latent factors (i.e., the congruence between ILTs and those for current supervisors, LMX, self-efficacy, job performance, and attachment insecurity with 2, 8, 4, 6, and 2 factors, respectively). The measurement model showed an acceptable data fitness (χ2/df = 2.84, p ≤ .001; CFI = .90; TLI = .90; RMSEA = .079), and all the indicators had acceptable and significant loadings on their unique variables (ranging from .67 to .88). In the measurement model, attachment insecurity does not have significant effects on the congruence between followers' ILTs and those for their immediate supervisor and LMX. Moreover, a series of CFA were carried out to determine the study variables were discriminant and the proposed model had better data fitness.
Hypothesized model
Fit indices for partially and fully mediated model.
N = 296.
CONG: the congruence between followers' ILTs and those for their current supervisor; LMX: leader–member exchange; CFI: comparative fit index; TLI: Tucker–Lewis index; RMSEA: root mean square error of approximation.
Results pertaining to Hypothesis 1 to Hypothesis 5
Hypothesis 1 predicted that the congruence between followers' ILTs and those for their immediate supervisor would have a positive effect on follower job performance. The results showed the direct effect of the congruence and performance is nonsignificant (b = 0.00, n.s.). However, after bootstrapping, the results supported that the congruence between followers' ILTs and those for their immediate supervisor would have a positive and significant effect on follower job performance through the mediators of LMX and self-efficacy since the estimated 95% confidence interval [0.03, 0.13] did not include zero (average bootstrap estimate = 0.10).
Since the fully mediating model is finally accepted as the fittest model, the congruence between followers' ILTs and their recognized ILTs for the current supervisors is not directly related to job performance and LMX and self-efficacy fully mediate this relationship. This finding supports the second and third hypotheses. On the contrary, Hypothesis 4 is repudiated since the relationship between attachment insecurity and the congruence between followers' ILTs and their recognized ILTs for current supervisors is not significant (b = .07, n.s.). Similarly, Hypothesis 5 was not confirmed because the relationship between attachment insecurity and LMX was not significant (b = .11, n.s.).
Results relating to Hypothesis 6: The moderating effect
The results of moderation analysis through hierarchical regression.
*p < .05; ***p < .001.
Hypothesis 6 prognosticated the moderating effect of attachment insecurity on the linkage between the congruence between followers' ILTs and their recognized ILTs for current supervisors and LMX. As Table 3 shows, the coefficient for the interaction of the congruence and attachment insecurity was statistically significant (β = 0.26, p < .001). In order to illustrate the relationship, split-plot analyses were conducted (Aiken & West, 1991) with one standard deviation below the mean when the level of attachment security was low and one standard deviation above the mean when the level of attachment insecurity was high. The results are shown in Figure 2. Based on Hypothesis 6 and Figure 2, the slope for the relationship between dependent and independent variables is steeper when attachment insecurity is high. However, the lines converge when the level of the congruence between followers' ILTs and their recognized ILTs for current supervisors increases. Hence, Hypothesis 6 is supported (Figure 2).
The moderating effect of attachment insecurity on the relationship between the congruence between followers' ILTs and those for their current supervisor and family performance LMX.
Discussions
Implicit theories impact a wide range of factors. As examples, emotional intelligence can influence emotional abilities (Cabello & Fernández-Berrocal, 2015), implicit theories of intelligence can impact the feelings of self-efficacy (Dweck, 1999; Komarraju, & Nadler, 2013), ILTs are the predictors of LMX (Epitropaki & Martin, 2005; Topakas, 2011), and implicit theories of work and job fit can boost job and life satisfaction (Burnette & Pollack, 2013). However, the question that is remained relatively unquestioned is what mechanism lies between implicit theories and the outcomes. Considering the importance of ILTs in job satisfaction, well-being, and commitment (Epitropaki & Martin, 2005), the subjective mental process of followers specifying leaders should be more seriously investigated since it can have some implications for the performance of organizations (Junker & van Dick, 2014).
This study aims at exploring the socio-cognitive mechanism linking the congruence between followers' ILTs and their recognized ILTs for current supervisors and follower job performance. In this relationship, LMX and self-efficacy play mediating roles. Additionally, in the proposed model, attachment insecurity is both the predictor of LMX and the congruence between followers' ILTs and those for their immediate supervisor. In terms of moderation, attachment insecurity plays a moderating role on the relation between linking the congruence between followers' ILTs and their recognized ILTs for current supervisors and LMX.
First, based on some reviews (e.g., Epitropaki & Martin, 2013; Junker & van Dick, 2014), this is one of the very few if not the only study to explore the mechanism linking the gap between typical-current leadership gap and job performance. Although, several studies have investigated ILTs as the factor impacting leader effectiveness ratings (e.g., Abdalla & Al-Hamoud, 2001; Eden & Leviatan, 1975); however, looking at ILTs through the lens of followers and how they impact follower job performance are novel.
The results of this study confirm the findings of prior studies showing ILTs impact LMX positively (Epitropaki & Martin, 2005; Topakas, 2011). Having elaborated this process, this study considered self-efficacy, a social-cognitive structure, as the bridge on the gap between LMX and performance. Bearing the association between cognition and relationship in mind, this study tried to find out if attachment insecurity can also act as the antecedent of the congruence between followers' ILTs and their recognized ILTs for current supervisors as well as LMX. Moreover, this research explored the role of attachment insecurity as a moderator on the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and LMX.
Second, the results demonstrated that the congruence between followers' ILTs and their recognized ILTs for current supervisors does not predict job performance directly, and LMX and self-efficacy fully mediate the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and job performance. Although research done by Epitropaki and Martin (2005) showed that the congruence between implicit and explicit leadership theories can increase job satisfaction, well-being, and affective commitment via LMX; however, self-efficacy has not, hitherto, been explored as a mediating factor influencing job performance. Furthermore, that research did not consider job performance as a specific job outcome. The findings of this study are in line with the results of their research positing that the congruence between implicit and explicit leadership theories can positively impact LMX and positive job attitudes.
Based on the results, the model and variables proposed have a good and solid theoretical foundation. According to social identity theorists, the process of categorization simplifies the understanding of social theory (Amion et al., 2007). This categorization can be done to distinguish leaders from nonleaders (which is done through ILTs in the model). Leadership, as an inherently social phenomenon, can mobilize followers toward a collective answer to the questions of “who we are” and “what we are about” (Haslam & Reicher, 2006), which is associated with an increase in the in-groups' status over other groups. According to social identity theory, this leads to high self-esteem (Barron, 2003; Turner, 1982). Defining categories (as an input) can form shared identity and self-efficacy, which finally lead to behavioral outcomes (Smith & Woodworth, 2012).
Third, although attachment theory has been explored in psychology and related fields, research regarding attachment in organizational contexts has been comparatively very limited. The results of this research showed that attachment insecurity does not function as the antecedent of both LMX and the congruence between followers' ILTs and their recognized ILTs for current supervisors but moderated the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and LMX. This result is in line with the claim that the most important role of attachment can be its moderating role (Harms, 2011).
There are some noteworthy points about the predictability of attachment insecurity for congruence. Attachment insecurity did not predict the congruence for some possible reasons. First, there are some inherent features of attachment which may not exist in the research context. In attachment theory, we have a person who is the caregiver, however; caregiving may lose its meaning where there is a high level of power distance (a feature of Iranian culture based on House et al., 2004). Most research in the realm of attachment is done in America, Israel, and Australia (Harms, 2011), in which power distance is lower than that of Iran (Chhokar et al., 2008). In these countries, the interpersonal relationship between supervisors and employees is less formal than the interpersonal relationship between them in Iran. The level of formality at workplaces may not provide the situation for the subordinates to have a close relationship with the supervisor. This might be the reason that attachment insecurity does not function as a factor impacting the congruence between followers' ILTs and their recognized ILTs for current supervisors as well as LMX. Moreover, in the scale of attachment insecurity, the word “others” may not include the supervisors since the high level of power distance makes them so special that the answers to those questions may not address their relationship with them. This result is aligned with the hypothesis of Keller (2013) which mentions that “There is also evidence that cultural contexts differ widely in their models of autonomy and relatedness, socialization goals and caregiving strategies” (p. 187). It seems necessary to consider the sample and the culture of nations in which research about attachment styles is done. Aligned with it, (Maslyn et al., 2017) showed that anxious attachment is only indirectly related to LMX via relationship effort. It is likely that it is out of comfort zone for employees to establish close relationships with supervisors in high power distance countries; therefore, anxious attachment did not significantly associate with LMX.
Fourth, the results showed that attachment insecurity moderated the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors (congruence) and LMX in a way that when congruence is low, those with high attachment insecurity report lower LMX quality, whereas when the congruence is high, the negative impact of high attachment insecurity is mitigated. Putting it differently, the positive linear relationship between the congruence and LMX is supported for both low and high levels of attachment insecurity; however, when the congruence is low, the impact of attachment insecurity causes the followers to perceive LMX at a lower level. When there is less match between follower' ILTs and those of their current supervisor, employees do not find their leaders worthy enough to have high-quality LMX, especially when the followers feel low attachment insecurity, but when the supervisors is perceived as a prototypical leader, attachment insecurity is marginalized and may not influence the positive relationship with the leader.
Fifth, the results acquired in this research are based on the answers of knowledge-oriented firms. Therefore, some points should be considered. Based on Green and Campbell (2000), attachment styles are both chronically and contextually activated. Attachment theory is based on a main pillar of caregiver. When the caregiver is watchful and present, the attachment system becomes quiescent (Green & Campbell, 2000). Moreover, when the child is at play, the child may periodically turn the head to guarantee the receiving of mother's attention, especially when frightened or altered; however, this checking gradually fades away (Anderson, 1972). Considering this analogy, from one perspective, it is likely that in knowledge-oriented firms, contextually caused attachment insecurity decreases and loses its impact since the employees are so engaged in exploration, innovation and knowledge utilization, and production that the employees gradually act autonomously. From another perspective, in such firms, the supervisor clearly outlines what the employees have to do and they are supposed to stay close to their team members in order to prevent against any possible failures. The intense connection and interaction between supervisors and subordinates can make attachment insecurity minimized; hence, lack of security in relationships may not act as the antecedents of supervisor-leader match and LMX. It is suggested that the generalizability of the result regarding attachment styles be considered with attention for other contexts.
Future research and limitations
More research is required to boost the understanding of the mechanism causing ILTs to increase job performance. Given the early focus on understanding the impact of LMX on job performance, it makes sense to keep on broadening the understanding of the social-cognitive as well as affective mechanisms delineating the consequences of ILTs. Trust is shown to impact LMX (Scandura & Pellegrini, 2008). For supervisors, attachment styles and supervisors' implicit followership theories may impact the relationship between followers' ILTs and job performance. Moreover, followers' identification with leader, creativity, and conscientiousness are also some variables which are likely to encourage followers to enhance their performance when they see the supervisors are good or ideal leaders.
One of the nascent areas of research is the exploration of attachment effect on organizational outcomes. This research tried to contribute to this field; however, more research is needed to figure out if eastern culture can impact the intensity of attachment effects. More specifically, culture should be considered as an important influencing parameter in attachment style since some cultural variables such as power distance and individualism are likely to affect the results.
This study has several inherent limitations. In order to tackle common method bias (Podsakoff et al., 2003), two sources and three data collection waves were used. However, the data could be collected in more waves to isolate the collection of data of each questionnaire. Second, self-report by nature is a limitation. Third, in this research, performance was assessed through the overall perception of the supervisor about the follower's performance. However, some objective scales (e.g., organization reports) can be used to increase the accuracy of the scale. Third, despite the high reliability and validity of Venn diagram to measure the congruence, other methods such as latent congruence modeling (Cheung, 2009) could be utilized. Fourth, data of all questionnaires were not acquired in all collection points; therefore, causality cannot be discussed. Fifth, since this study was conducted in an eastern culture and the ILTs scale used in this study had been developed in a western culture, the generalizability of the findings still remains unclear.
Past research has shown that a number of ILTs are culture-specific, and future research can take this into account. Further, the findings of this study revealed the relationships between the measured variables; however, they do not provide evidence on the causality between variables. Finally, the data were gathered from supervisors and employees at the individual level of analysis since we did not want to add to the complexity of inter-group variables in the conceptual model. Nevertheless, using group-level variables and adding them to the proposed model can be a fruitful venue of research and contribute to multi-level analysis approach to ILTs which is not yet addressed and explored sufficiently.
Conclusion
This research delved into the social-cognitive mechanism leading to an increase in follower's job performance. In this regard, ILTs, LMX, and self-efficacy fully mediate the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and job performance. Also, attachment insecurity moderates the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and job performance. The results showed that the congruence of ILTs, as cognitive structures formed in the minds of followers, with their image of their current supervisor does not directly impact job performance; however, when these perceptions enter the realm of relations (LMX in this study) can impact individuals' perceptions about themselves and improve the self-image of followers and increase their self-efficacy which finally leads to better job performance. In terms of the moderation, attachment insecurity was shown to moderate the relationship between the congruence between followers' ILTs and their recognized ILTs for current supervisors and LMX. In this relation, when the level of congruence is low, attachment insecurity causes the lower ratings of LMX.
