The objectives of this review are to answer the following research questions: (1) What is the effect size of the effectiveness of interventions to improve livelihood outcomes for people with disabilities in low- and middle-income countries (LMICs), and what is the quality of the evidence base? (2) What works to improve livelihood outcomes for…

The objectives of this review are to answer the following research questions: (1) What is the nature of the interventions used to support education for people with disabilities? (2) What is the size and quality of the evidence base of the effectiveness of interventions to improve educational outcomes for people with disabilities in low- and…

The research question guiding the production of the youth employment evidence and gap map (EGM) is stated as follows: What is the nature and extent of the evidence base of impact evaluations and systematic reviews on youth employment programmes in the world? The primary objective of is to catalogue impact evaluations and systematic reviews on…

Over the past decade the academic literature on disability outcomes and effectiveness has grown substantially (Andresen, Lollar, & Meyers, 2000; Devon, Lydon, Healy, & McCoy, 2016; Iemmi et al., 2015). Several important questions have not been adequately addressed, however. For example, what type of evidence is needed, and what are…

This research brief is one of a series of six briefs, which provide an overview of available evidence shown in the Campbell-UNICEF Mega-Map of the effectiveness of interventions to improve child wellbeing in low- and middle-income countries (LMICs). Five of the six briefs summarize evidence as mapped against the five Goal Areas of UNICEF's…

This research brief is one of a series of six briefs, which provide an overview of available evidence shown in the Campbell-UNICEF Mega-Map of the effectiveness of interventions to improve child wellbeing in low- and middle-income countries (LMICs), with this brief mapping the COVID-19-relevant studies. This brief provides an overview of the…

Background: There are approximately 1 billion people in the world with some form of disability. This corresponds to approximately 15% of the world's population (World Report on Disability, 2011). The majority of people with disabilities (80%) live in low- and middle-income countries (LMICs), where disability has been shown to disproportionately…

This research brief is one of a series of six briefs, which provide an overview of available evidence shown in the Campbell-UNICEF Mega-Map of the effectiveness of interventions to improve child wellbeing in low- and middle-income countries (LMICs). Five of the six briefs summarize evidence as mapped against the five Goal Areas of UNICEF's…

This research brief is one of a series of six briefs, which provide an overview of available evidence shown in the Campbell-UNICEF Mega-Map of the effectiveness of interventions to improve child wellbeing in low- and middle-income countries (LMICs). Five of the six briefs summarize evidence as mapped against the five Goal Areas of UNICEF's…

This research brief is one of a series of six briefs, which provide an overview of available evidence shown in the Campbell-UNICEF Mega-Map of the effectiveness of interventions to improve child well-being in low- and middle-income countries. Five of these briefs summarize evidence as mapped against the five goal areas of UNICEF's 2018-2021…

Farmer field schools (FFSs) originated in Asia as a means of achieving several objectives, of which key was to deliver training on 'integrated pest management' as an alternative to intensive pesticide spraying, which was severely damaging farm production, the environment and farmers' health. Integrated pest management (IPM) was developed in the…

Evaluations should be issues driven, not methods driven. The starting point should be priority programs to be evaluated or policies to be tested. From this starting point, a list of evaluation questions is identified. For each evaluation question, the task is to identify the best available method for answering that question. Hence it is likely…

The theory-based evaluation approach documents the assumptions implicit in program design and points to the data required to test these assumptions. Collecting and analyzing such data through quantitative and qualitative techniques enhances understanding of the validity of the assumptions and the relevance of key program processes. This article…