Abstract
Objective:
Positive youth development (PYD) often aims to prevent tobacco, alcohol, and drugs use and violence. We systematically reviewed PYD interventions, synthesizing process, and outcomes evidence. Synthesis of outcomes, published elsewhere, found no overall evidence of reducing substance use or violence but notable variability of fidelity. Our synthesis of process evaluations examined how implementation varied and was influenced by context.
Data Source:
Process evaluations of PYD aiming to reduce substance use and violence.
Study Inclusion Criteria:
Overall review published since 1985; written in English; focused on youth aged 11 to 18 years; focused on interventions addressing multiple positive assets; reported on theory, process, or outcomes; and concerned with reducing substance use or violence. Synthesis of process evaluations examined how implementation varies with or is influenced by context.
Data Extraction:
Two reviewers in parallel.
Data Synthesis:
Thematic synthesis.
Results:
We identified 12 reports. Community engagement enhanced program appeal. Collaboration with other agencies could broaden the activities offered. Calm but authoritative staff increased acceptability. Staff continuity underpinned diverse activities and durable relationships. Empowering participants were sometimes in tension with requiring them to engage in diverse activities.
Conclusion:
Our systematic review identified factors that might help improve the fidelity and acceptability of PYD interventions. Addressing these might enable PYD to fulfill its potential as a means of promoting health.
Objective
Positive youth development (PYD) interventions aim to develop positive assets such as resilience, social and emotional competencies, and aspirations. 1 They aim to address multiple intercorrelated risk behaviors 2,3 including substance use (ie, tobacco, alcohol, and drugs) and violence. Positive youth development is the dominant paradigm in youth work in the United States 1,4,5 and United Kingdom. 6 Positive youth development has the potential to reduce substance use and violence through various complex pathways, including addressing risk factors such as disengagement from education and lack of social support, 1 diverting young people away from risk behaviors by engaging them in positive forms of recreation, 7 –9 and providing credible health messages and signposting of health services. 10,11
However, the evidence base for PYD is unclear. Previous reviews of PYD effects on violence and drug use 1,8 suggest benefits, but they are out of date and in the latter case not systematic. The review reported here is part of a larger study that synthesized evidence on PYD theories of change, process, and outcomes. Synthesis of outcomes suggested a lack of evidence overall that PYD interventions are effective in reducing substance use and violence. 12 Interventions included in this review were notably variable in implementation fidelity with some heterogeneity of effects. So that future PYD interventions might be more acceptable, appropriate, and ultimately more effective in promoting health, we here report findings from our synthesis of process evidence. This synthesis aimed to examine how PYD interventions were implemented, how young people received them, and how this was affected by contextual characteristics of places and persons. Synthesizing process evidence is important to understand what practical factors need to be considered to ensure feasibility, fidelity, reach, acceptability, and ultimately effectiveness. 13 Recent guidance on process evaluation stresses the importance of qualitative data in understanding the complex processes via which implementation is affected by such factors from the perspectives of providers and practitioners. 14 Examining how implementation varies with context also allows us to better understand variations in intervention fidelity, which in the case of PYD ranges from very good 15,16 to suboptimal for some programs and some sites. 17,18
Methods
This systematic review was described a priori in a research protocol 19 and adheres to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidance. 20 The PRISMA checklist can be found in the Supplemental Appendix.
Data Sources
We systematically searched 19 electronic bibliographic databases between October 2013 and January 2014, including PsycINFO, MEDLINE, and ERIC, in addition to topic-specific Web sites, clinical trials registers, and consultation with experts (details in Supplemental Appendix). Our search strategy used both indexed and free-text terms relevant to key concepts identified from the review question and inclusion criteria, such as population (eg, youth or young people) and intervention
Inclusion and Exclusion Criteria
Studies were included in the overall review if they were published from 1985 onward; were written in English; focused on youth aged 11 to 18 years; focused on PYD interventions; reported on PYD theory, process, or outcomes; and were concerned with reducing substance use or violence. Studies were included in this synthesis of process evidence if they reported data on implementation or receipt of PYD and how this varied or was influenced by context (see Supplemental Appendix for full details). Informed by existing literature, 1,5 we defined PYD interventions as voluntary education to address generalized (beyond merely health) and positive (beyond merely avoiding risk) development. The development was defined as promoting—bonding, resilience, social, emotional, cognitive, behavioral, or moral competence, self-determination, spirituality, self-efficacy, clear and positive identity, belief in the future, recognition for positive behavior, and opportunities for prosocial involvement or prosocial norms. Included PYD interventions needed to address at least 1 of these criteria but apply them to different domains such as family, community, or school, or promote more than 1 of these criteria in a single domain. We included studies of interventions provided in community settings outside of school time since school-based interventions have been the subject of recent reviews. 21,22 We excluded PYD interventions delivered in custodial or probationary settings or clinical settings or employment training for school leavers.
Data Extraction
We extracted data using a modified version of an existing tool 23 including items on—study location; intervention/components, development and delivery, timing of delivery and evaluation; provider characteristics; target population; sampling and sample characteristics; data collection and analysis; and findings relevant to our review including verbatim quotes, author descriptions, and interpretations of the findings. After piloting and refinement, 2 reviewers working independently extracted study reports, before meeting to agree on coding.
Reliability and usefulness of process evaluations were assessed using a standard tool for process studies 24 including sampling, data collection, data analysis, the extent to which the study findings were grounded in the data (criteria 1-4), the extent to which the study privileged the perspectives of participants, and breadth and depth of findings (criteria 5-6). Studies were assigned 2 types of “weight of evidence” (low, medium, or high)—the reliability or trustworthiness of the findings and the usefulness of the findings for shedding light on factors relating to the research questions. To be judged as highly reliable studies needed to have taken steps to ensure rigor in at least 3 of the first 4 criteria. Studies were judged as medium when scoring only 2 and low when scoring only 1 or none. To achieve a rating of high on usefulness, studies needed to achieve both depth and breadth in their findings or use methods that enable participants to voice their views on implementing or engaging in programs, to ensure richness and complexity in their analysis, and to answer the review questions. Studies rated as medium on usefulness only partially met these criteria, and low-rated studies were judged to have sufficient but limited findings. Quality was used to determine the qualitative weight given to findings in our synthesis, with none of the themes represented solely by studies judged as low on both dimensions.
Data Synthesis
We qualitatively meta-synthesized process evaluations using thematic synthesis methods. 25 –27 Qualitative meta-synthesis aims to develop interpretive explanations and understandings from multiple cases of a given phenomenon by utilizing research examining participant experiences. Two reviewers independently read study reports and then undertook line-by-line coding of the findings sections. They first applied in vivo codes to what Schutz 28 termed first-order (verbatim quotes from participants) and second-order constructs (authors’ interpretations of the data). Reviewers wrote memos to summarize their interpretations of these first-order and second-order constructs. The analysis was then deepened by the use of axial codes to make connections between in vivo codes. Reviewers wrote memos throughout to describe emerging “meta-themes.” Each reviewer developed an emerging coding template, a hierarchical organization of the codes that were applied in the course of the analysis. 29 The 2 reviewers then compared coding templates to agree a common template that formed the basis for the synthesis, consisting of all the data as extracted and third-order constructs developed by reviewers. As the coding template was developed, the reviewers referred to tables summarizing the methodological quality of each study to ensure the synthesis reflected study quality.
Results
Search Results
After removing duplicates, 32 394 studies were identified from the search. Of these, 10 studies reported in 12 papers, all concerned with reducing substance misuse and violence or antisocial behavior, met the inclusion criteria (see Figure 1) for the synthesis of process evaluations. All studies used qualitative methods of data collection and analysis to evaluate processes related to implementation.

Flow of studies through the review.
Characteristics and Quality of Process Evaluations
Of the 10 included studies, 18,30 –38 8 were conducted in the United States, 18,30 –34,37,39 1 in Australia, 36 and 1 in England. 38 Four studies targeted youth aged 14 years or older 18,32,34,37 ; 3 targeted those aged both above and below 14 years 33,35,38 ; and 3 did not report the age range targeted. 30,31,36 Four interventions targeted individuals on the basis of individual disadvantage; 2 on the basis of area or school disadvantage; 1 on both individual and area disadvantage; and 3 did not involve targeting on either basis (Table 1).
Description of Included Studies.
Study reliability and usefulness varied (Table 2). Three studies were judged to be of high reliability and usefulness 35,37,38 ; 1 as having medium reliability and usefulness 32 ; and 3 as of low reliability and usefulness. 31,33,36 One study was judged as having high reliability and medium usefulness, 34 whereas 2 were judged as having low reliability but high usefulness. 18,30
Reliability and Usefulness of Findings.
Thematic Synthesis of Process Evaluations
Theme 1: collaboration with the community
A major theme across a number of studies 18,30,32,33,36 –38 was the importance of collaborating with local communities to support implementation. Subthemes within this were the importance of cultural sensitivity with ethnic minority communities, the challenges in building trust, and the importance of collaborating with communities and with schools.
Importance of cultural sensitivity, collaboration, and integration with ethnic minority communities
The importance of cultural sensitivity and collaboration when implementing programs in ethnic minority communities was a subtheme across 3 studies, 30,33,36 all judged to be of low reliability but varying degrees of usefulness. These reported that formal and informal community engagement was a key factor in ensuring programs were culturally sensitive, accessible, and appealing to young people and their parents. This was particularly important when programs were targeting or situated within marginalized ethnic minority populations. For example, in a process evaluation judged to be of high relevance but low reliability, Armstrong and Armstrong 30 reported from interviews with site coordinators delivering after-school programs in a southwestern US state that a program’s cultural relevance within an “ethnically diverse community” meant that it was “important to have a strong cultural awareness” and was essential to the program’s success. This included both “outreach projects with parents” and with schools in the local area and “liaison…with a trusted member of the community who could communicate with the parents, often times in Spanish.” 30(p101)
Lee and colleagues’ 36 study, though judged to be of both low reliability and relevance, corroborated this finding. In their evaluation of a PYD program targeting the aboriginal communities of the Northern Territory of Australia, they highlighted the importance of seeking and incorporating the views of the wider community, not just those of young people or parents. This, it was suggested, could provide support through the generation of ideas and allay fears among minority ethnic groups that the program was “a non-Indigenous solution so there is little ownership of it by Indigenous people.” 36(p78) Community consultation led to activities that were youth oriented but culturally relevant, such as “bush hunting excursions and using computers to record traditional music.”(p79) This study found that as the program progressed, staff became more active in encouraging community members to get involved, including through “engaging in regular formal meetings and informal discussion” with members of the community. 36(p78)
Lee and colleagues 36 also highlighted the importance of increasing both the cultural relevance and participation of the local community, addressing potential language barriers by “translating key proceedings,” and communicating with indigenous members “in their language.”(p78) Armstrong and Armstrong 30 also found instances where young people were only allowed to access and participate in the program, because “the parents were able to communicate with, and trusted the liaison”(p101) officer connected with the program.
In some cases, programs actively recruited community members as staff. Lee and colleagues 36 described this as “pivotal to the initiative’s success.”(p79) Such actions could also be seen as providing the additional benefit of providing local role models. For example, after identifying a “lack of Chicano Latino adult role models”(p51) that could “encourage, empower and develop leadership skills and qualities”(p46) of local Chicano youth in Minnesota, program providers in the low-quality study by Bloomberg and colleagues 33 trained local community members, as “facilitators” who could “work closely with youth in the initial 2-day training”(p51) with the aim of establishing and maintaining a bond with them.
Challenges with community engagement and establishing trust
However, 2 studies 18,37 of differing quality noted challenges in relying on volunteer community engagement and establishing trust of parents. These were studies of interventions that did not specifically target diverse ethnic populations but attempted to involve parents and local community members. For example, as reported by a study of high reliability and usefulness by Schwartz and colleagues, 37 successful implementation of an intervention component relying on volunteer mentors was challenging when mentors were not always reliable in maintaining contact, leaving participants feeling “disappointed”; as 1 young person said, she hoped her mentor “would be there more than she was…, and she wasn’t”.
Building trusting and openly communicative relationships with parents could also be challenging. Maxfield and colleagues 18 studied the Quantum Opportunity Program, implemented in the United States, in a process evaluation judged as providing highly useful findings but with low methodological reliability. They found that trust and open communication were seen as important means of maintaining contact with young people and encouraging uptake of intervention activities. The case managers in this program reported parents who appeared “anxious to limit the exposure of family problems,” who seemed to experience case managers as “intrusive,” or may have “felt threatened” by the mentoring relationships that case managers established with their children, were subsequently the most “most difficult to reach” compared to parents who actively supported case managers and “reinforced the value of attending program activities.” 18 all quotes p.58
Collaborating with and utilizing local community resources
Another subtheme concerned with collaborations with others in the local community was the importance of collaboration with other community agencies to enable program implementation. This was apparent in 3 studies 18,30,32 of variable reliability and usefulness. Armstrong and Armstrong 30 found that it was “extremely important for the site to utilize community resources from a programmatic standpoint”(p101) in order to expand the range of activities offered, a critical element of PYD. For example, local libraries proved to be an “unplanned benefit” that could help deliver a reading program. Program providers cited being able to host “occasional large-scale events” by “taking advantage” of a nearby boys and girls club. 30 Local funding bodies were considered another important local resource to support positive youth activities. This was the case in the study of medium reliability and relevance by Berg and colleagues 32 where the program received a grant that “enabled (young participants) to receive training in photography and show their work at a photography exhibit.”
The importance of collaboration was also apparent in Maxfield and colleagues’ 18 study of the Quantum Opportunity Program in which providers forged “partnerships with agencies that specialized (in a range of life skills training topics) such as substance abuse prevention, conflict resolution training, date rape, and sexual abuse.” The importance of being able to make use of other local services to maximize breadth of opportunities was regarded as particularly important to fill gaps in program providers’ expertise, such as when drawing on “student volunteers from the local university” to offer tutoring to support sites where case managers felt they lacked the skills to provide such services. 18(p64)
Collaboration with schools
A final subtheme regarding community collaboration highlighted that collaboration with schools, while critical to implementation, could be time consuming and challenging. Three studies, 18,30,38 2 based in the United States and 1 in the United Kingdom, examined the importance of liaising with schools to support the successful implementation of programs. All 3 studies were judged to be of high usefulness but variable in terms of methodological reliability. Site coordinators in Armstrong and Armstrong’s 30 study of after-school programs in the southwestern US indicated that communicating with other community stakeholders to support the development of youth “such as schools, had an important impact on program implementation,”(p101) particularly because they had a number of after-school programs located off schools’ sites. One way of dealing with barriers to communication arising from this was to designate a school liaison, who could work across program sites but who was an employee of a single school. The schools then also acted as a channel to disseminate information about program events to young people and their families in order to reach a wider audience and increase program reach.
Wiggins and colleagues’ 38 study of after-school youth development targeting at-risk young people across England, which was judged to be of high reliability and usefulness, also found that “working with schools was crucial” for recruiting young people to programs, though negotiating “access and referral routes” was time consuming. In a context of providers aiming to meet challenging recruitment targets, some sites reformatted their program so that young people attended as an alternative rather than a supplement to their normal schooling, a major distortion of the intended intervention model. Maxfield and colleagues 18 also reported that collaborations with schools in the Quantum Opportunity Program were subject to logistical challenges. When case managers who transported young people to the school where tutoring services were provided found it “proved too burdensome,” participants’ uptake of tutoring plummeted.
Theme 2: young people’s relationship with program providers and peers
The second major theme that was apparent across a number of studies 18,34,35 was the importance of young people’s relationships with program providers and peers in maximizing the acceptability and potential impact of interventions. Subthemes within this were the importance of calm and authoritative providers and positive peer relations.
Calm and authoritative program providers
One subtheme was the importance of program providers attending to young people in a calm and nurturing yet authoritative way, including in response to any challenging behavior exhibited by participants. Three studies of varying reliability and usefulness described provider attitudes and responses to young people in this context. The “Stand Up Help Out” program was evaluated by Bulanda and McCrea 34 in a process evaluation judged as highly reliable and of medium usefulness. They reported that successful implementation was associated with staff signaling their continued commitment to providing “unconditional positive regard” when faced with challenging behavior from young participants. It was reported that this response style was acceptable to the young people, who did not feel they were treated “negatively.” 34 Similarly, Maxfield and colleagues’ 18 evaluation found evidence supporting the need for case managers to engage with young people as individuals rather than collectively as a group. They found that “the most successful mentors used a balance between nurturing and discipline” when interacting with young people. 18(p59)
In contrast, Cross and colleagues 35 reported in what was judged a highly reliable and relevant study that staff struggled to respond to young people’s frequent challenging behavior with “very little redirection from staff members” and a disciplinary approach that “appeared capricious and confusing to youth.” 35 In another site, the same evaluators, found staff to be “irritated and apathetic,” appearing to engage more with each other than interacting and addressing young people’s challenging behavior. 35
Positive peer relations
A further subtheme was the importance of positive and supportive peer relations underpinned by staff and by program structure, as examined by 3 studies of differing reliability and usefulness. For example, a high-quality study by Bulanda and McCrea 34 described a US after-school program where social differences, such as membership of different “street alliances” that could be a cause of conflict outside the program, did not necessarily prevent mutual collaboration and support within the program as long as participants were able to “prioritize their connectedness over the potential discord created by differences” and “recognize relationship problems and focus on relationship strengths.” However, Cross and colleagues 35 argued that tensions among participants or between participants and staff could only be overcome in sites that were well managed. A lack of organization and high turnover of staff at 1 site within their study was a key factor in young people not seeming “to enjoy each other’s company” and that the positive outcomes observed in another site might be attributable to “the friendships among students, which were in part facilitated by stable site management.” 35(p377)
Bloom et al 40 described how the National Guard Youth Challenge Program separated participants who belonged to different gangs into different “squads” and removed gang symbols such as tattoos that could act as “physical reminders of past affiliations.” Although problems associated with gang membership were not always easily overcome, staff members did report that external problems were less likely to intrude during the residential phase of this program, where they “have them 24/7” and can instill values that young people can them take “home with them.” 40(both quotes p37)
Theme 3: staff retention
Staff retention was another key theme evident across 3 studies 18,30,35 of differing reliability and usefulness. These studies reported on the importance of staff continuity to ensure programs were implemented fully and appropriately, and the difficulty of offering full-time posts in the youth-work field.
Staffing continuity essential to successful implementation
Within this, a key subtheme was the importance of staffing continuity to intervention delivery. As Armstrong and Armstrong 30 noted, after-school program site coordinators felt that effective implementation and sustainability relied on minimizing staff turnover. This was a challenge for some programs. However, in the after-school program Cross and colleagues 35 evaluated, “six of the original fourteen staff members quit or were fired before the end of the year.” Similarly, Lee and colleagues 36 reported that turnover of staff “impacted significantly on program continuity and workloads.” Maxfield and colleagues 18 observed that they were “fortunate [that] turnover [in certain sites] was relatively low.” However, staff turnover led to a failure in sustaining mentoring relationships when unfilled staff positions resulted in participants not having a “primary mentor for as long as 2 or 3 months,” and when participants had multiple case managers.
Difficulty offering full-time posts in the youth work field
Across a number of studies, the lack of full-time positions increased the challenge of securing and retaining qualified staff. To overcome this, Armstrong and Armstrong 30 report how 1 program aimed to recruit staff who were not looking for full-time work, such as college students interested in gaining experience of youth work. Difficulties with retaining trained employees could also mean that replacement staff were not well trained. Cross and colleagues 35 report that youth workers who had been retained since program initiation “received more than 40 h[ours] of training on average” compared to those who had replaced them, who “received less than 6 hours” and that sites with high employee turnover were less likely to have staff who were highly trained because it was not possible to offer them the original training.
Creative attempts to compensate for lack of trained staff included drawing on existing skills that happened to be held by staff members and incorporating these opportunistically into program activities. For example, Armstrong and Armstrong 30 observed that at 1 site an employee “with extensive orienteering skills” was encouraged “to organize camping trips and day hikes for youth,” and that at an another site, a staff-member “who enjoyed jazz dancing started a dance program.”
However, 2 studies 18,37 reported that it was difficult to overcome limitations in skills due to a lack of training, leading to an inability to provide the range of activities normally expected of a PYD program. For example, based on a paper reporting on the study by Schwartz et al, 7 Bloom and colleagues 40(a paper reporting on the study by Schwartz et al7) found that provision of individual tutoring was impossible to implement because of lack of tutor capacity and had to be “abandoned midway through the year.” The authors felt that despite providing an alternative academic activity, the lack of one-to-one tutoring may have “contributed to withdrawal of youths whose parents viewed tutoring as the main draw of the program.” 40(p54) In addition, Maxfield and colleagues 18 reported that programs found it difficult to secure staff with expertise across the range of PYD domains. For example, programs expanded to include an educational component challenged staff “hired on the basis they could be case managers not tutors or teachers” and who “required extensive training and technical assistance.” Other sites that did not provide “extensive in-service training to improve case managers’ tutoring skills” relied on volunteer tutors instead, though these volunteers tended only to work for the program for “1 or 2 semesters.” 18
Theme 4: youth led empowerment
Our final theme drawn from 5 studies 18,31,32,35,37 concerns the importance of, and potential contradictions and challenges inherent in, ensuring young people are empowered to make decisions about their engagement in program activities. Subthemes concerned young people determining their own engagement, limitations to such choices and tensions arising from choice.
Young people determining their own engagement in activities
One subtheme within this relates simply to the extent to which young people were empowered to choose in which PYD activities to participate. This was described in 3 studies of variable reliability and usefulness. Berg and colleagues 32 described youth empowerment as a key component in their Youth Action Research for Prevention program and suggested that staff needed to be trained in “facilitation techniques” to halt the tendency for staff to determine decisions about how community engagement is undertaken. Young people’s decision-making processes were considered more important than their final choice of activity in Baker and colleagues’ 31 study of the South Baltimore Youth Centre. The evaluation, judged as being of low reliability and relevance, reported that when activities were “imposed (in a) top down (manner they) failed and were abandoned” and thus providers aimed to give young people authority in developing and executing activities. Schwartz and colleagues’ 19 study of youth-initiated mentoring found that when young people were able to choose their mentors, the mentoring relationship was more likely to be successful.
Limitations to choice provided
In contrast, 2 studies judged as highly reliable reported that young people in some interventions had very limited empowerment to shape and determine their involvement. For example, empowerment in the “All Stars” curriculum 35 was highly restricted. In this study, also judged to be of high usefulness, young people’s choices were restricted to a list predetermined by the site director and program assistant at the start of each day. Empowerment was also restricted in the program evaluated by Schwartz and colleagues. 19
Tensions arising from choice
Another subtheme was the tensions that could arise when empowering young people to choose which activities in which to engage. Four studies, judged to be of high relevance with variable reliability, provided data on young people’s choice of activities, finding that some program components were often rejected by young people on the basis that they were unappealing. Sometimes these were activities with a learning component, such as “computer-assisted instruction” and “community service,” which were not received with “enthusiasm.” 18(all quotes p62) This was also the case for “computerized job training” which was “ignored” 31(p73) and academic assistance. 35 Wiggins and colleagues 38 argue that an academic style could alienate young people, particularly those whose lives are “chaotic and hard” and suggest that young people need to be able to get involved in activities at a level that is “most appropriate for them at any given time.” This might suggest the importance of a diversity of provision, not only to enable choice but also because different young people will have different preferences and developmental needs.
However, whereas some process evaluations, as well as much of the theoretical literature, suggested that young people’s empowerment to choose activities is central to PYD, process evaluation of the Quantum Opportunity Program 18 suggested that facilitating choice may in some cases deter engagement in the broad range of activities, which is also commonly regarded as a central feature of PYD. This study, judged to be of low quality but high relevance, reported that some sites offered more recreational activities (such as outings to the cinema, swimming, etc) because they attracted “more enrollees than did other activities.” However, as young people got older they resisted staff’s promotion of “activities with learning content” and continued to favor recreational activities that providers had originally used “to attract youth to the program.” Participants reported “that they missed doing “fun things” and that museum and other cultural activities were boring.” Similarly, when there was a scheduling clash between attending summer school and taking up summer employment, case managers were more likely to recommend summer school, but ultimately, they were “not able to prevent an enrollee from choosing (paid work).” This contrasted with program sites that provided a balanced combination but offered participants little choice, which appeared to have “less difficulty in maintaining interest” of young people. A lack of choice could be received positively by participants when it offered them something new. Participants in the National Youth Guard mentoring program “welcomed the small class size, tailored instruction, and self-paced approach” 40(p48) of the high school completion program. The authors noted that a key element of the success of their educational component was that it was noticeably different from what young people were used to experiencing in school, as it combined both structure and individual support.
Maxfield and colleagues 18 reported that some sites provided financial incentives to increase engagement in specific educational activities, such as computer-assisted instruction and assessment tests. However, the 2 sites that took these approaches found that it was “effective for only short periods of time and only for students already inclined to spend time on the computer” and did not prove effective in motivating already resistant young people. The use of incentives was also reported as problematic by Cross and colleagues. 35 To increase engagement in program activities, young people were randomly assigned to groups that accrued points for attendance. However, program staff thought the system unfair and decided to place high-attending youth together “to ensure the attending students would receive the maximum points” thus undermining the intended system. This “probably did not encourage attendance among the lower attending youth because they were placed in groups with very low probabilities for receiving points.” 15(all quotes pp52-53 a paper reporting on the study by Cross et al35) In both of these programs using incentives, there was a tension in providers’ attitudes to empowerment. Although program providers wanted to enable choice, they also sometimes wanted to constrain choice to ensure young people engaged in the program overall or in specific activities staff regarded as important.
Conclusion
A number of themes emerged from our synthesis. Formal and informal community engagement was a key factor in ensuring programs were culturally sensitive, accessible, and appealing to young people and their parents as well as the wider community. Employing community members could be pivotal to successful implementation and providing role models. However, volunteers could be unreliable, for example, when acting as mentors. Collaboration with other community agencies could also be important particularly in expanding the range of activities being offered. Another theme was the importance of young people’s relationships with providers and peers. Providers should ideally relate to young people in a calm, nurturing yet authoritative way. Peer support was also important, sometimes in the face of challenges with social differences among young people, such as in membership of different gangs. Skilled providers could bridge these social differences by helping participants recognize common ground, but this was difficult where staff were poorly trained.
More generally, staff continuity was reported to be critical for PYD since such programs require staff with a diversity of skills and experiences who can offer participants a range of activities as well as durable relationships. Retention was challenging where programs, mostly operating after school or at weekends, could not offer full-time positions. A final theme concerns the importance of, and challenges with, ensuring young people were empowered to make decisions about program activities. This required that staff were trained in facilitation rather than merely being directive. Tensions could arise between PYD’s aims of empowering young people to choose and when requiring them to engage in different activities to develop specific assets, such as vocational or academic skills.
Limitations
A limitation of the review was that it omitted potentially includable studies not written in English or published before 1985. The preponderance of US evaluations means that the generalizability of the evidence in our synthesis remains uncertain. This, coupled with the poor reliability and lack of interpretative depth of most of the studies means that it is likely that studies, and therefore our synthesis, may have missed important and relevant contextual determinants of implementing PYD programs. The qualitative studies included in this review drew on subjective accounts and offered rich explanations of the processes for how context might affect implementation. The review found no quantitative analyses of what correlations exist between measures of context and implementation. Future implementation studies should use mixed methods to examine these questions of both what and how.
Implications for Research, Policy, and Practice
Future process evaluations of the implementation of PYD programs should be conducted more rigorously and reported more transparently. Increased use of direct quotes of staff or young people’s views would contribute to transparency.
Our synthesis of evidence on the effectiveness of PYD programs to reduce or prevent violence and substance use found no evidence overall that these are effective. The interventions included in this review varied notably in their fidelity of intervention. The synthesis presented here identifies a number of factors that are likely to be critical for successful implementation of PYD either when delivered within intervention studies or when scaled up. Greater awareness of these factors might enable better implementation and greater acceptability, and possibly enhanced effectiveness, of future PYD interventions.
The critical factors we identified include valuing and encouraging community engagement in the delivery of PYD programs. Specific efforts to mobilize the community should focus on—adequately training and supporting community members as volunteers in the delivery of PYD, increasing its cultural sensitivity and appeal to young people. At the outset, program funders and providers should engage with the challenges of establishing a highly skilled work force that can implement PYD programs, considering the numerous challenges to recruiting, training, and retaining practitioners who are often being offered part-time work, of potentially low wage, and for time-limited periods. Given the breadth of the types of activities PYD aims to deliver, there is a high chance that program providers will also need to collaborate with other local agencies, such as schools, libraries, or community health initiatives. A balance is required between empowering young people to choose which activities they wish to engage in, focusing their attention on particular activities of interest to the program aims, and offering a diversity of activities overall.
So what? Implications for health promotion practitioners and researchers
What is already known about this topic?
Positive youth development interventions aim to develop positive assets such as resilience, social and emotional competencies, and aspirations and to use these assets to address multiple intercorrelated risk behaviors, including tobacco, alcohol and drugs use, and violence.
What does this article add?
Our systematic review and synthesis of process evaluations suggest that community engagement, collaboration with other agencies, and the recruitment and retention of calm but authoritative staff are key to successful implementation. But staff retention staff is a challenge with part-time contracts and limited funding. The PYD imperative of empowering participants is sometimes in tension with the imperative to engage participants in diverse activities.
What are the implications for health promotion practice or research?
Addressing these factors might enable PYD to fulfill its potential as a mean of promoting health. At the program outset, funders and planners should establish a highly skilled workforce and mobilize the community including by training and supporting community members as volunteers and increasing cultural sensitivity and appeal to young people.
Supplemental Material
Supplemental Material, PYD_Prisma_and_methods_online_appendix - How Do Contextual Factors Influence Implementation and Receipt of Positive Youth Development Programs Addressing Substance Use and Violence? A Qualitative Meta-Synthesis of Process Evaluations
Supplemental Material, PYD_Prisma_and_methods_online_appendix for How Do Contextual Factors Influence Implementation and Receipt of Positive Youth Development Programs Addressing Substance Use and Violence? A Qualitative Meta-Synthesis of Process Evaluations by Kelly Dickson, G. J. Melendez-Torres, Adam Fletcher, Kate Hinds, James Thomas, Claire Stansfield, Simon Murphy, Rona Campbell, and Chris Bonell in American Journal of Health Promotion
Footnotes
Declaration of Conflicting Interests
The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The work was undertaken with the support of The Centre for the Development and Evaluation of Complex Interventions for Public Health Improvement (DECIPHer), a UKCRC Public Health Research Centre of Excellence. Joint funding (MR/KO232331/1) from the British Heart Foundation, Cancer Research UK, Economic and Social Research Council, Medical Research Council, the Welsh Government and the Wellcome Trust, under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged. This project is funded by a grant from the National Institute for Health Research Public Health Research programme (grant PHR 12/153/19). This report presents independent research commissioned by the National Institute for Health Research (NIHR). The views and opinions expressed by authors in this publication are those of the authors and do not necessarily reflect those of the NHS, the NIHR, MRC, CCF, NETSCC, the Public Health Research programme or the Department of Health.
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