摘要:Between 2007 and 2009, reports were released on the results of three separate
large-scale random assignment studies of the effectiveness of schoolbased
mentoring programs for youth. The studies evaluated programs
implemented by Big Brothers Big Sisters of America (BBBSA) affiliates (Herrera
et al., 2007), Communities In Schools of San Antonio, Texas (Karcher,
2008), and grantees of the U.S. Department of Education’s Student Mentoring Program
(Bernstein et al., 2009). Differences in the findings and conclusions of the studies have
led to varying responses by those in practice and policy roles. The results of the BBBSA
trial led the organization to undertake an initiative to pilot and evaluate an enhanced
school-based mentoring model. Findings of the Student Mentoring Program evaluation
were cited as a reason for eliminating support for the program in the FY 2010
federal budget (Office of Management and Budget, 2009). In this report, we present
a comparative analysis of the three studies. We identify important differences across
the studies in several areas, including agency inclusion criteria, program models,
implementation fidelity and support, and criteria utilized in tests of statistical significance.
When aggregating results across the studies using meta-analytic techniques,
we find evidence that school-based mentoring can be modestly effective for improving
selected outcomes (i.e., support from non-familial adults, peer support, perceptions
of scholastic efficacy, school-related misconduct, absenteeism, and truancy). Program
effects are not apparent, however, for academic achievement or other outcomes.
Our analysis underscores that evidence-based decision-making as applied to youth
interventions should take into account multiple programmatic and methodological
influences on findings and endeavor to take stock of results from the full landscape of
available studies.