Abstract
Purpose:
An analysis of the psychometric properties of an Icelandic version of McMasters Family Assessment Device (FAD) was conducted in this study.
Method:
Two groups, clinical and nonclinical, comprising of 529 parents answered the FAD. The study examined the internal reliability and discriminant validity of the instrument in addition to examining construct validity using exploratory factor analysis (EFA).
Results:
The theoretically based original FAD is reliable where the total scale had high α, .95. The factors found for the Icelandic FAD were not as reliable as the original FAD. The discriminant validity showed that the clinical group scored higher (more dysfunctional) than the nonclinical group in most dimensions of both original FAD and the Icelandic FAD. The eight factors extracted in an EFA were different from the original factors.
Discussion:
The Icelandic FAD possesses good psychometric properties, although its factor structure differs from the original FAD. The results are promising and merit continued application.
Keywords
The following study focuses on an assessment of psychometric properties of an Icelandic version of McMasters Family Assessment Device (FAD). The FAD is a self-report questionnaire that assesses family functioning on each of the six dimensions of the McMasters model of family functioning (MMFF). The six dimensions are Problem solving (PS), which reflects the family’s ability to resolve problems and steps taken to achieve this; Communication (CM), a dimension that refers to the verbal exchange of information within a family; Roles (RL), which assesses the repetitive patterns of behavior by which family members fulfill family functions; Affective responsiveness (AR), that assesses family member’s ability to respond with the appropriate emotions; Affective involvement (AI), which refers to the extent to which the family, as a group, values and shows interest in particular activities of individual family members and finally Behavioral control (BC), that describes the expected standards for behavior (Epstein, Baldwin, & Bishop, 1983; Ryan, Epstein, Keitner, Miller, & Bishop, 2005). In addition, the FAD includes a General Functioning (GF) scale that measures the overall level of family functioning (Epstein et al., 1983; Ryan et al., 2005).
The objective of this study was to validate the FAD in Icelandic, which could measure functioning of families in Iceland, both for epidemiological purposes and to be able to measure outcome of family interventions, such as family therapy or parental training programs.
Families are complex systems and are difficult to assess and quantify for many reasons. One reason is that parenting styles differ widely, the family’s life cycle stage is another factor and subsystems within the family influence each other. The pressure of larger systems like social systems can also be a factor and cultural factors can also further complicate valid measurements (Goldenberg & Goldenberg, 2008). Even if there are many factors that complicate measurements of families, documenting the family’s role as a stressor and as an essential support, when individuals are battling physical and mental illnesses, is an important focus for family social work. Family role is also vital in assessing recovery and performance of services, especially when user’s views are taken into account (Addington, Collins, McCleery, & Addington, 2005; Bhui, Mohamud, Warfa, Craig, & Stansfeld, 2003; Houtzager et al., 2004).
The concept of family functioning revolves around those factors that are seen as having the most impact on the emotional and physical health or problems of family members (Ryan et al., 2005). When families are being assessed, it is important to decide from what perspective the assessment is being made. Self-report instruments are useful in those kinds of assessments where the family gets its own voice and each individual can rapport his or her own experience (Goldenberg & Goldenberg, 2008). The development of family functioning scales has sought to cover this area of interest.
Although a self-report instrument is considered satisfactory in one country, research has shown that in cross-cultural comparative studies on family functioning, it is essential to establish equivalent measurement of relevant constructs across cultures (Kankaraš & Moors, 2010; Lauth, Magnússon, Ferrari, & Pétursson, 2008). The FAD has been translated and adapted in over 20 languages (Al-Krenawi, Graham, & Slonim-Nevo, 2002; Al-Krenawi, Lev-Wiesel, & Sehwail, 2007; Barroilhet, Cano-Prous, Cervera-Enguix, Forjaz, & Guillén-Grima, 2009; Chen et al., 2003; Kazarian, 2009; Keitner et al., 1991; Kiliç, Ozguven, & Sayil, 2003; Roncone et al., 1998; Ryan et al., 2005; Shek, 2002; Wenniger, Hageman, & Arrindell, 1993). Results from cross-cultural studies of the FAD suggest that cultural values can affect a family’s functioning and that differences in areas of family functioning can be captured using the FAD (Keitner et al., 1991). The FAD has also been used to assess family functioning in nonclinical families (Stevenson-Hinde & Akister, 1995), families with various medical (Chen & Clark, 2007; Hanks, Rapport, & Vangel, 2007; Malec, Testa, Rush, Brown, & Moessner, 2007; Miller, Bishop, Herman, & Stein, 2007; Schmitt et al., 2008) and psychiatric disorders (Celikel, Cumurcu, Koc, Etikan, & Yucel, 2008; Derisley, Libby, Clark, & Reynolds, 2005; Erol, Yazici, & Toprak, 2007; Kabacoff, Miller, Bishop, Epstein, & Keitner, 1990; Keitner et al., 1995; Lieb et al., 2000; Miller, McDermut, Gordon, Keitner, & Ryan, 2000; Sourander et al., 2006; Tamplin & Gooyer, 2001; Tiffin, Pearce, Kaplan, Fundudis, & Parker, 2007) as well as families with psychosocial problems (Keitner, Ryan, Miller, & Zlotnick, 1997; Koyama, Akyama, Miyake, & Kurita, 2004; Tiffin et al., 2007). The popularity of this instrument has been confirmed by the large number of studies it has been used in, but this is the first time the psychometric properties of it have been analyzed in Icelandic for the population of Iceland.
Regarding the clinical implications of the instrument, the FAD has a moderate correlation with other self-administered family functioning instruments, being capable of differentiating significantly between families that have been clinically assessed as functional or dysfunctional (Miller, Keitner, Bishop, & Epstein, 1985; Ryan et al., 2005). Regarding the concurrent validity for the FAD, the relationship between FAD and other family functioning measures such as the Family Adaptability and Cohesion Evaluation Scale (FACES-IV), Family Environment Scale, and Self-Report Family Inventory has been examined in the American culture and have been shown to be highly correlated with one another (Corcoran, 2009; Olson, 2011). To our knowledge, only one validation study has been published on an established family functioning self-report instrument in Iceland and that was for Icelandic FACES-IV. The result of that study indicated that it needed to be further examined before it could be used for Icelandic population (Gu㡲andsdóttir & Björgvinsdóttir, 2011). No other studies have been published regarding other established family functioning scales for the Icelandic population to our knowledge.
There have been discussions regarding studies done on the dimensionality of the FAD scales (Miller et al., 2000; Ridenour, Daley, & Reich, 1999; Shek, 2002). The authors of the MMFF and FAD have said that they want to distinguish between “rational-theoretical” and “internal-consistency” approaches to test construction of the FAD, since it was developed from the “rational-theoretical” approach to measure the constructs of the particular theory that lies behind the MMFF (Miller, Ryan, Keitner, Bishop, & Epstein, 2000a). In that regard, they say that since a factor analytic approach has no prior theory but develops constructs of a scale from the pattern of correlations among the items, they explicitly did not use an internal consistency or factor analytic method in developing the FAD (Miller et al., 2000a). They have also stated that different aspects of family functioning will never be totally independent of each other because problems in one area of family functioning will affect other areas and that is why there can never be the outcome of a study of dimensionalities, on this kind of instrument, that the scales will be totally independent of each other (Epstein et al., 1983).
Ridenour, Daley, and Reich (1999) concluded after doing a new factor analysis on the correlation matrix of the original analysis on the FAD (Epstein et al., 1983) that the seven dimensions of MMFF are not distinct components of the FAD and that subscales of the FAD should be two, GF and BC as well as suggesting that future studies should be done on two new subscales found in their study (Ridenour et al., 1999). In a rejoinder on that article, the authors of the MMFF and FAD disagreed and stated that multiple studies have shown significant differences in results between FAD subscales and ask that the original scoring of the FAD remain the current standard although it could be suggested that the original FAD scales operate as hypothesized and do manifest differences in specific populations and situations (Miller, Ryan, Keitner, Bishop, & Epstein, 2000b). In line with the results of the Ridenour et al. study, other studies of the dimensionality done on the FAD in non-English-speaking countries have not been conclusive: Shek (2002) found a three-factor solution with the Chinese FAD using principal components analysis, Barroilhet, Cano-Prous, Cervera-Enguix, Forjaz, and Guillen-Grima (2009) found a three-factor solution as well with the Spanish FAD using exploratory factor analysis (EFA), in a study on the Dutch version, Wenniger, Hageman, and Arrindell (1993) supported the structure of the FAD, Roncone et al. (1998) found seven factors in the Italian FAD different from the original seven factors using EFA and Chen et al. (2003) found eight factors in the Chinese FAD using confirmatory factor analysis (CFA) and EFA.
Evidence for the reliability of the original FAD scales has been reported in many studies. Epstein, Baldwin, and Bishop (1983) found in the original study of the instrument that the α values of the theoretically derived FAD scales ranged from .72 to .92. In other similar studies of comparative reliability of the FAD, the original scales have been evaluated as well as factor-derived scales (Shek, 2002). Alphas of the original scales have been lowest .20 in the subscale BC (Roncone et al., 1998) and highest in the GF scale .89 (Wenniger et al., 1993).
Aims and Research Questions
This study explores the validity and reliability of an Icelandic version of the FAD in a clinical and nonclinical sample. The study was designed to examine the internal reliability and discriminant validity of the instrument in addition to examining construct validity by using EFA.
Questions addressed in this study:
Method
Participants
The participants in the study were categorized into two groups, a clinical group and a nonclinical group. Since the FAD has been shown to differentiate between families living with a child suffering either from mental or medical problems or with a child without problems (Magill-Evans, Darrah, Pain, Adkins, & Kratochvil, 2001; Stein et al., 2000), it was decided to design the research to compare answers of these two groups. The clinical group contained parents of children who were patients at either the Department of child and adolescent psychiatry or the Department of pediatrics at Landspitali University Hospital (n = 289), which are the largest specialized children’s hospital departments in Iceland. These two children’s departments in the hospital service children from birth to 18 years of age and that is the age of the children in the clinical group. Only information regarding the age of the parents was collected for both groups and not the age of the child due to comments from the Data Protection Authority in Iceland.
The nonclinical group contained parents of children between the ages of 14–17 (n = 240) that were recruited through five primary and lower secondary schools by a sample of convenience. The sample was carefully chosen to represent different areas of demographic composition of inhabitants around the capital area based on statistical information from the Icelandic Statistical Office (Hagstofan; Gudjonsdottir, 2012).
Procedure
Participants were recruited during a 1-month period. The parents in the clinical group answered the self-administered instrument in the waiting rooms of the two departments at the Landspitali hospital and turned them in at the admittance desks. The nonclinical group was asked to answer the self-administered instrument at home and return it to the schools, but they also had the option of answering a web-based FAD and skip the paper version. This study was approved by the National Bioethics Committee (VSN11-072) in Iceland and the Data Protection Authority in Iceland (S5269). The families who participated in the study were offered family therapy if requested.
Instrument
The translation and adaptation of the original English language version of the FAD were done in accordance with standard protocols used for intercultural adaptation of assessment instruments (Prince, 2008). The translation and adaptation process consisted of forward translation from English to Icelandic by one of the authors of this article, an experienced English-speaking social worker and family therapist, Hrefna Ólafsdóttir. A pilot study was conducted at the department of child and adolescent psychiatry at Landspitali University Hospital in Iceland in September 2010. Five families participated in the pilot study. The FAD was back translated by a bilingual expert as a part of the translation and adaptation process.
The FAD is a 60-item self-administered instrument, made up of seven subscales. Six of the subscales correspond to the MMFF dimensions of family functioning and one subscale assesses the overall level of the family functioning, called GF (Epstein et al., 1983; Ryan et al., 2005).
The MMFF emphasizes a functional approach to understanding whether families accomplish basic tasks of daily life. The model focuses on the dimensions of family functioning that are seen as having the most impact on the emotional and physical health or problems within families. The functioning within each dimension ranges from most ineffective to most effective. By assessing a family from this perspective, the conclusion can be that “most ineffective” functioning in any of the dimensions can contribute to difficulties on a clinical level. Any family can be evaluated with this approach to determine the effectiveness of its functioning with respect to each dimension (Ryan et al., 2005).
The FAD evaluates family functioning on all dimension of the MMFF by assessing each member’s perception of their family’s functioning (Ryan et al., 2005). The third version of FAD was used in this study, which is designed to be completed by all family members over the age of 12 (Ryan et al., 2005). The items in the instrument consist of general statements about families and the respondent has to decide how well each statement represents his or her own family, using a 4-point Likert-type scale. The answers are scored from 1 to 4, with a higher score indicating poorer function (Ryan et al., 2005). The FAD’s cutoff points for distinguishing dysfunctional from functional families have adequate sensitivity, and in general the reliability of its subscales is acceptable (Miller et al., 1985). In addition to the 60 questions on the form, the participants were asked background questions about both parents in the family, their gender, age range, and years of education.
Data Analysis
For analytical purposes, Epstein and colleague’s (1983) original psychometric study on the FAD was used as a reference. In that study, the authors of the FAD used two groups as well, a nonclinical and a clinical group. The descriptive analysis consists of a frequency analysis for qualitative variables (sex, age, and education) along with means and standard deviation for those variables as well. A p value of ≤.05 was used as level of statistical significance.
As previously has been stated, although factor analysis was deliberately not used to develop the FAD items (Epstein et al., 1983; Miller et al., 2000), findings based on studies of the FAD have been analyzed with factor analysis (Barroilhet et al., 2009; Chen et al., 2003; Kabacoff et al., 1990; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993). In this study, the authors chose to use solely EFA using subjects from both groups to see how the items of the Icelandic FAD would load on the theoretically developed factors. The intention was also to explore new factors keeping in mind the debates regarding the previous studies of the instrument as well the wishes of the authors of the instrument regarding the dimensionality of the FAD, but they have asked that the original scoring of the FAD remain in the current standard even if factor analysis suggest changes in the instrument (Miller et al., 2000b).
The factor analysis was done according to the α method (Kaiser & Goffrey, 1965) with oblique rotation (promax), in order to find the simplest underlying factor structure (Fabrigar, Wegener, MacCallum, & Strahan, 1999). The general rules of factor analysis (Costello & Osbourne, 2005; Fabrigar et al., 1999; Matsunaga, 2010) were applied for this study. Sample size was acceptable according to the rule of minimum 5–10 cases per measure, which has commonly been recommended (Russel, 2002). In this study, the total sample size was 529 people for the 60-item list, which means 8.8 cases per measure. In line with other studies of the FAD, the 12 items of the GF subscale were excluded from the factor analysis since that subscale is designed to correlate with the other subscales and assumed to be multifactorial (Barroilhet et al., 2009; Roncone et al., 1998, Ryan et al., 2005). Communalities per item were in the range .3–.6 which according to MacCallum, Widaman, Zhang, and Sehee (1999) is in the lower range.
The internal consistency of the full scale and each of the original FAD subscales as well as the subscales of the Icelandic FAD was evaluated with the Cronbach’s α reliability coefficient (Cronbach, 1951). To explore the discriminant validity of the FAD, a comparison of the means and standard deviation was done between the two groups to see which group scored higher (more dysfunctional) in the subscales of the original as well as the Icelandic FAD. An interitem analysis was also done where the two groups, clinical and nonclinical, were compared by their extreme scores on the total scale (TS), the highest and lowest quartiles. Missing items were considered to be missing completely at random and were deleted listwise in the data analysis. The statistical analysis program Statistical Package for the Social Sciences (SPSS) 20.0 was used in this study.
Results
According to the descriptive characteristics of the sample, mothers (female) were the most common respondents in both groups, 75% in the clinical group and 77.9% in the nonclinical. The age range of the respondents was significantly higher in the nonclinical group, 40–45 years, whereas 35–40 years in the clinical group. The years of education were similar in the two groups, ranging from 15 to 17 years, compulsory education in Iceland being 10 years. A question was not addressed if the family was a one- or a two-parent family (Table 1).
Demographic and Social Characteristics of the Groups.
Note. SD = standard deviation.
*p ≤ .05, two-tailed.
The factor analysis, shown in Table 2, yielded eight factors where all the items were grouped and which accounted for 49.3% of the total variance. The total of measures per factor which, according to Russel (2002), can be no less than 3, were sufficient. The Kaiser–Meyer–Olkin measure of sampling adequacy was good, 0.913, where the cutoff point is 0.5 and the Bartlett’s test of sphericity was significant (p = .000). The Scree plot, shown in Figure 1, the Keiser criterion, where Eigenvalue over 1 was considered, and subscales’ factor loadings were used to determine number of factors, which showed that eight factors gave the most stable factor loading after analyzing other factor loadings as well, which were more unstable.
Factor Loadings for FAD Obtained Using Exploratory Factor Analysis With α Method of Extraction and Promax Rotation.a
Note. n = 529. FAD = Family Assessment Device; PS = Problem solving; CM = Communication; RL = Roles; AR = Affective Responsiveness; AI = Affective Involvement; BC = Behavior Control; GF = General Functioning.
aThe 12 items of GF scale are excluded in the factor analysis.

Scree plot for exploratory factor analysis.
The eight factors derived from the EFA were different from the six factors in the MMFF model for the original FAD. Factor 1 accounted for 24.48% of the variance and included items 59, 60, 18, 43, 50, 29, 38, 57, 3, 52, 20, 2, 24, 12. This factor (14 items) is called Communicate (CC), since it included mostly items that address CM and PS. The items in this factor are from the original subscales CM (6 items), PS (6 items), and one from BC and AR. Factor 2 accounted for 5.71% of the variance and included Items 9, 28, 49, 33, 37, 19, 22, and 39. This factor (8 items) is called Expressing emotions (EE), since it included mostly items included in the AR subscale (5 of the 6 items that AR contains) but also 3 items regarding interest for each other and communication. Those 3 items are from the original subscales AI (2 items) and one from CM. Factor 3 accounted for 4.3% of the variance and included items 8, 23, 58, 34, 42, 35, 14, and 5. This factor (8 items) is called Needs and understanding (NU), since it included mostly items from the original subscales RL (4 items), CM (2 items), and AI (2 items). Factor 4 accounted for 3.7% of the total variance and included items number 45, 4, 15, 13, and 17. This factor (5 items) is called Cooperation (CO) since it included mostly items regarding RL (3 items) and other items addressing communication from the original subscales AI and BC. Factor 5 accounted for 3.2% of the variance and has 3 items, number 44, 27, and 48. This factor is called Behavior (BH), since it includes only items from the BC subscale of the FAD. Factor 6 accounted for 2.8% of the variance and includes 3 items, number 10, 30, and 40. This factor is called Family roles (FR) since it includes only the positive items from the RL subscale. Factor 7 accounted for 2.6% of the variance and includes 4 items, number 54, 25, 53, and 47. This factor is called Loyalty and respect (LR) since it includes items that address AI (2 items) and respect toward others (1 item from RL and 1 item from BC). Factor 8 accounted for 2.5% of the variance; items number 32, 7, and 55. This factor is called Danger in family (DF) since it includes only items from the BC subscale that addresses dangerous situations in the family.
In Table 3, the comparative reliability of the factors derived from the Icelandic FAD are presented. As Table 3 demonstrates, the comparative reliability of the factors derived in the factor analysis in this study is rather good. For the total sample, subscales CC, EE, NU, and CO scored average, α scores over .7 minimum. The same factors were over .7 in the clinical sample. In the nonclinical sample, the αs were also over .7 minimum in the CC, EE, and NU subscales but instead of the α being over .7 in the CO it was under .7 in CO but over .7 in the FR subscale.
Reliability of the Factors Derived From the Icelandic FAD.
Note. FAD = Family Assessment Device; CC = Communicate; EE = Expressing emotions; NU = Needs and understanding; CO = Cooperation; BH = Behavior; FR = Family roles; LR = Loyalty and respect; DF = Danger in family.
Table 4 compares the resulting Cronbach’s α with Epstein’s original psychometric study of the FAD (Epstein et al., 1983). For the total sample, internal consistency for the 60 items TS was high; Cronbach’s α = .95, which suggests that, in general, all items contributed to measuring this construct of family functioning. No items had to be eliminated for discriminant validity purposes.
Reliability of the Original FAD.
Note. FAD = Family Assessment Device; PS = Problem solving; CM = Communication; RL = Roles; AR = Affective Responsiveness; AI = Affective Involvement; BC = Behavior Control; GF = General Functioning.
As Table 4 demonstrates, the comparative reliability for the original FAD in this study is rather good. For the total sample, subscales AR, AI, BC as well as the GF subscale, scored average and thus similar to the scores in the original study. For subscales PS, CM, and RL, the score was higher than in the original study.
In other studies of comparative reliability of the original FAD, the αs in PS have lowest been .63 (Barroilhet et al., 2009) and highest .80 (Kabacoff et al., 1990). In CM, the lowest αs have been .45 (Roncone et al., 1998) and highest .79 (Wenniger et al., 1993). In RL, the lowest αs have been .33 (Roncone et al., 1998) and highest .72 in the original study (Epstein et al., 1983). In the AR scale, the lowest αs have been .52 (Roncone et al., 1998) and the highest have been .83 also in the original study by Epstein et al. (1983). In AI, the lowest αs have been .39 (Roncone et al., 1998) and the highest .82 (Barroilhet et al., 2009) when 3 items had been excluded for discriminant validity purposes. In BC, the lowest αs have been .20 (Roncone et al., 1998) and the highest .78 (Barroilhet et al., 2009). The GF scale usually gets rather high αs, the lowest .69 (Roncone et al., 1998) and the highest .92 (Epstein et al., 1983). Finally, the TS has only been measured in few studies, but the lowest α score TS has got is .88 (Roncone et al., 1998) and the highest is .94 (Barroilhet et al., 2009).
Table 5 demonstrates the results of the discriminant validity of the original FAD as well as the subscales derived from the factor analysis done in this study. According to the authors of the FAD, the cutoff score for healthy/unhealthy families varies between the subscales and cultures (Ryan et al., 2005). Significant differences were observed between the parents in the clinical group and nonclinical group using t-test for independent groups in five of the seven subscales of the original FAD and five of the eight in the factor-based FAD.
Discriminant Validity of the Original FAD and the Icelandic FAD With t-Test for Independent Groups.
Note. FAD = Family Assessment Device; SD = standard deviation.
*p ≤ .05, two-tailed. **p ≤ .01, two-tailed. ***p ≤ .001, two-tailed.
Effect size was found for the differences using Cohen’s d index. The results indicate that the effect sizes found were small where significance was found, to trivial where there was no significance found. These findings are similar to other studies on the FAD in regard to the discriminant validity of the FAD (Shek, 2002).
Intercorrelations between the original and Icelandic FAD subscales are shown in Tables 6 and 7. Table 6 shows Pearson correlations between the original FAD subscales for both samples and Table 7 shows the same for the factor-derived FAD. Like the tables show, all but one of the predictors has significant correlations with each other and their intercorrelations are all well below .80, so multicollinearity is not a big problem.
Pearson Correlations for the Original FAD Subscales for the Nonclinical (n = 240) and Clinical Sample (n = 289).
Note. FAD = Family Assessment Device; PS = Problem solving; CM = Communication; RL = Roles; AR = Affective Responsiveness; AI = Affective Involvement; BC = Behavior Control; GF = General Functioning.
**Correlation is significant at the .01 level (two-tailed).
Pearson Correlations for the Factors Derived From the Icelandic FAD for the Nonclinical (n = 240) and Clinical Sample (n = 289).
Note. FAD = Family Assessment Device; CC = Communicate; EE = Expressing emotions; NU = Needs and understanding; CO = Cooperation; BH = Behavior; FR = Family roles; LR = Loyalty and respect; DF = Danger in family.
*Correlation is significant at the .05 level (two-tailed). **Correlation is significant at the .01 level (two-tailed).
Discussion and Applications to Social Work Practice
In this study, an analysis of the psychometric properties of an Icelandic version of the FAD was conducted. The frequency analysis for qualitative variables showed that the age range of the parents in this study was significantly higher in the nonclinical group, 40–45, whereas it was 35–40 in the clinical group. This difference can be explained by the age range of the children in the nonclinical group which was fixed at 14–17, but the age of the children in the clinical group is from newborn to 18. There is a possibility that this difference can impact the results of this study and therefore it would be better to fix the ages of all the participants in future studies, so that the results will be more reliable.
The first research question for this study was if the Icelandic FAD measured the same conceptual domains as the original instrument does. In order to answer that question, it was important to clarify the Icelandic FAD’s factor structure. In an effort to do that, an EFA was conducted on the Icelandic FAD, considering all subjects, in order to evaluate if the translated FAD measures the same conceptual domains as the original FAD. The eight factors extracted in the EFA in this study were not the same as in the original measure and differed also in numbers, since in the original FAD, the factors normally used in the factor analysis are 6, but in this study, the factors were 8. The factors in this study are CC, EE, NU, CO, BH, FR, LR, and DF.
These results are in line with other similar cross-cultural studies that have used factor analysis on the FAD in non-English-speaking countries. In many of those studies, the results have not been conclusive, showing different factor solutions, from three factors (Barroilhet et al., 2009; Shek, 2002) to eight factors (Chen et al., 2003) using different methods of factor analysis.
The authors of the FAD have stated that there can be cultural differences in specific populations, which possibly are what we are seeing here. Although the factors derived from the EFA in this study do not show the same factors as the original FAD does, it is our opinion that the conceptual domains are there, based on the fact that many of the items that group together in the factor analysis done in this study are grouped together in the MMFF model and the original FAD (Epstein et al., 1983). Further analysis must be done to assess this question.
The second research question of this study is if the internal consistency is as good for the Icelandic version of the FAD as it is for the original FAD. The comparative reliability of the factors derived in the factor analysis in this study was analyzed. The results are that the α values of the Icelandic FAD scales ranged from .26 to .88, the lowest αs being in the subscale DF and the highest in CM. The αs in four of the subscales were acceptable but not in four of them, although they were found to be internally consistent. This means that although the α values in half of the factor-derived subscales for the Icelandic FAD in this study were generally acceptable, it is not enough to merit the use of these factors without further studies.
The comparative reliability of the original FAD is also assessed and compared to the original study of the FAD by Epstein et al. (1983). For the AR, AI, BC, and GF subscales, the score is lower or similar to the original study (Epstein et al., 1983), but higher than in many other similar studies (Barroilhet et al., 2009; Chen et al., 2003; Kazarian, 2009; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993). Similarly, the BC subscale is the lowest in the clinical and total samples in this study, which is similar to other studies of the original subscales of the FAD where the α for BC has also been the lowest (Roncone et al., 1998; Shek, 2002). For subscales PS, CM, and RL, the score was higher than in the original study (Epstein et al., 1983) and in fact the α for the CM subscale was higher than it has been in other similar studies of the FAD (Barroilhet et al., 2009; Chen et al., 2003; Kazarian, 2009; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993) and the α for RL in the clinical sample and the total sample was also higher than it has been in other similar studies (Barroilhet et al., 2009; Chen et al., 2003; Kazarian, 2009; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993). The subscales RL in the nonclinical group and BC in the clinical group and for the total sample the scores are under a minimum of .7 and need to be revised in further studies in order to try to get a higher internal consistency. The internal consistency for the TS was high; Cronbach’s α = .95 and that is also the highest score the TS scale has got in other similar studies of the FAD (Barroilhet et al., 2009; Chen et al., 2003; Kazarian, 2009; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993). This suggests that, in general, all items contributed to measuring the theoretically based construct of family functioning. These results indicate that the Icelandic version of the theoretically based original FAD is reliable and thus merits continued use, in line with the authors’ goals.
The third research questions asked if there is a significant difference in the discriminant validity for the nonclinical versus clinical families. The result of the study of discriminant validity of the FAD is that significant differences were observed between the parents in the clinical group and nonclinical group in five of the seven subscales of the original FAD and five of the eight in the Icelandic FAD. Over all, the clinical group had higher mean score (more dysfunctional) in all the subscales except BC of the original FAD and BH and DF subscales of the factor-based FAD. These findings are similar to other studies on the FAD (Barroilhet et al., 2009; Chen et al., 2003; Kazarian, 2009; Roncone et al., 1998; Shek, 2002; Wenniger et al., 1993). This means that the Icelandic FAD seems to be sensitive to family function in clinical and nonclinical families in Iceland.
The reason for the relatively small difference between the two groups in the discriminant validity analysis can be that the Icelandic nation as a whole is small, the population counting 321.857 (Statistics Iceland, 2014) and homogenous, where 84.5% of the population is of Icelandic decent (Statistics Iceland, 2014). So a conclusion can be drawn that there are some customs, rules, and behaviors within families that are the same throughout the country. There is also a timing factor to consider, since this study was done shortly after the biggest financial crisis the Icelandic nation has gone through and it is possible that the effects of that shock was having an impact on the way both groups answered (Gudmundsdottir, 2013).
Consideration should be given to the limitations of this study, which reside in the fact that no screening tools were used to measure the parents and children’s individual health, no questions were asked about other children in the household or the size of the family in general, and temporal stability was not measured. Future studies should also include CFA of the Icelandic FAD introduced in this study.
Social workers use assessment tools for their work frequently, but it is not common that they are using tools that are assessed by them, from their professional point of view, for their work. Family functioning is an interesting phenomenon to study for social workers, in clinical and nonclinical families alike, but few studies are available that focus on family functioning in Icelandic families that are done using a self-report instrument that measures family functioning. One way to overcome lack of research regarding family functioning in Iceland is to translate and validate instruments that have been created in other countries and have proved their usefulness in the field of clinical family therapy and research. That was the focus of this study, in order to have a validated instrument to use in future studies on families, for prevention purposes, assessment of service, and to obtain information regarding situations of certain groups within the society.
Another focus of this study was to contribute to the field of social work research in Iceland, since it is important, for social workers who want to work within an evidence-based framework, to use assessment tools that help them to evaluate process and outcome for their work. Evidence-based practice means that one relies on the best scientific evidence that is currently available (McNeece & Thyer, 2004). That includes using assessment tools like self-report measurements that have been evaluated regarding their psychometric properties in its relevant culture. In the spirit of evidence-based practice, it is also important that social workers prepare the intervention that has been proposed very well with careful assessment. They need to have clear and measurable treatment goals, develop a treatment plan based on those goals, and monitor progress toward them frequently, for example, by assessing the progress with a self-report instrument like FAD and modify or end treatment as needed (McNeece & Thyer, 2004). In this kind of work, it is important to have good assessment tools.
In order for a self-report instrument like FAD to be used by social workers in the field, it is important to point a few things out. When social workers are wondering if they should use a self-report questionnaire to assess family functioning they have to consider a few things. Self-report measurements of families provide important information about subjective things like feelings, perspective, and ability of the family members, from themselves, that will be hard to get with general questioning or observation. These kinds of measurements can thus help with the assessment of the family and help the social worker in deciding on a treatment plan for the family. In addition, these measurements can assess outcome of treatment, for example, family therapy or parental training and thus validate the decision of the implementation to provide further funding for that treatment (Corcoran, 2009). As was mentioned earlier in this article, this kind of self-report measurement, which evaluates family functioning, would be useful for social workers working with families in child and adolescent psychiatric settings, adult psychiatric settings, in child protection services, or with families that are experiencing any kind of medical illnesses where one in the family is sick, a child or an adult. It has also been used in settings where there has been trauma in the family like divorce (Brown, Eichenberg, Portes, & Christensen, 1991) or when a family has lived through major disasters like war or natural disasters (Kiliç et al., 2003).
The FAD is a widely used and validated instrument with vast appeal to many dimensions of family studies, which focuses on family functioning from a multidimensional focus. In this article, the results of the first adaptation of the Icelandic FAD were presented. The results of this study are promising, as they imply that the Icelandic FAD is both valid and reliable and thus merit continued application.
Footnotes
Declaration of Conflicting Interests
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported in part by a grant from the Icelandic Association of Social Workers (Félagsrá㦪afafélag Íslands). It also received assistance from Specialisterne, a work program for adults with autism in Iceland.
