Evaluating the impact of complex whole-school interventions (CWSIs) is challenging. However, what evidence there is suggests that school leadership and other elements of whole-school contexts are important for pupils' attainment (Leithwood et al., 2006), suggesting that interventions aimed at changing these have significant potential to improve…

This guide is addressed to policy officials, program providers, and researchers who are seeking to: (1) identify and implement social programs backed by valid evidence of effectiveness; or (2) sponsor or conduct an evaluation to determine whether a program is effective. The guide provides a brief overview of which studies can produce valid…

Community-based educational programs for older adults are difficult to evaluate due to randomization and control factors. In order to investigate, under a quasi-experimental research design, the contribution of an educational program on retirement issues to participants' quality of life, and to study the program enrollment patterns, 21 people…