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Campbell evidence and gap maps

Coming soon – Campbell EGMs are a new evidence synthesis product. Plain language summaries of our EGMs will be published on this website. The interactive EGMs and full EGM reports will be available in our journal on the Wiley Online Library platform: click here.



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Other EGMs

Campbell has produced maps on other topics, sometimes in partnership with other organisations.



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Search Result: 167 Records found
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Interventions for promoting reintegration and reducing harmful behaviour and lifestyles in street-connected children and young people
  • Authors Esther Coren, Rosa Hossain, Jordi Pardo Pardo, Brittany Bakker
  • Published date 2016-07-01
  • Coordinating group(s) International Development
  • Type of document Protocol Review Plain language summary
  • Category Image Category Image
  • PLS Title Lack of evidence on the effectiveness of interventions to reintegrate street-connected children
  • PLS Description This Campbell review assesses the effectiveness of interventions for improving outcomes among street-connected children and young people, and for reducing some important health-related risks; and to improve access to and integration into society, education, and employment opportunities.
  • Title Interventions for promoting reintegration and reducing harmful behaviour and lifestyles in street-connected children and young people
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2016.5
Policy brief 1: Effects of parenting programmes
  • Authors Jane Barlow
  • Published date 2016-06-20
  • Type of document Policy brief
  • Title Policy brief 1: Effects of parenting programmes
  • English

    Parenting programmes are provided to parents to enhance their knowledge, skills and understanding, and so improve both child and parent behavioural and psychological outcomes.

    These programmes are typically offered over eight to 12 weeks, for about one to two hours each week, although the range varies from as few as two sessions to as many as 20.

    Professor Barlow summarises evidence from six Campbell systematic reviews.

  • Spanish

    Efectos de programas de capacitación para padres: Una revisión de seis revisiones sistemáticas Campbell

Policy brief 2: Effects of school-based interventions to improve student behavior
  • Authors Gary Ritter
  • Published date 2016-06-20
  • Type of document Policy brief
  • Title Policy brief 2: Effects of school-based interventions to improve student behavior
Policy brief 3: Programs promoting sustainable agriculture for smallholders
  • Authors Hugh Waddington
  • Published date 2016-06-08
  • Type of document Policy brief
  • Title Policy brief 3: Programs promoting sustainable agriculture for smallholders
  • English

    This Campbell policy brief summarizes evidence from five systematic reviews in the Campbell Library which examine agricultural interventions including technology, skills and the regulatory environment. The impact of the following interventions is presented: land titling, training and technology, farmer field schools, payment for environmental services and decentralized forest management.

Parental, community and familial support interventions to improve children’s literacy in developing countries
  • Authors Elizabeth Spier, Pia Britto, Terri Pigott, Eugene Roehlkapartain, Michael McCarthy, Yael Kidron, Mengli Song, Peter Scales, Dan Wagner, Julia Lane, Janis Glover
  • Published date 2016-03-23
  • Coordinating group(s) Education, International Development
  • Type of document Title Protocol Review Plain language summary
  • PLS Title Limited evidence of effectiveness for home or community-based child literacy programmes yet some approaches improve outcomes
  • PLS Description For a majority of the world’s children academic learning is neither occurring at expected rates nor supplying the basic foundational skills necessary to succeed in the 21st century. This review examines the availability of evidence and its findings about the effectiveness of interventions to improve parental, familial, and community support for children’s literacy development in developing countries.
  • Title Parental, community and familial support interventions to improve children’s literacy in developing countries
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2016.4
Juvenile curfew effects on criminal behavior and victimization
  • Authors David Wilson, Charlotte Gill, Ajima Olaghere, Dave McClure
  • Published date 2016-03-23
  • Coordinating group(s) Crime and Justice
  • Type of document Title Protocol Review Plain language summary
  • Category Image Category Image
  • PLS Title Juvenile curfews are not effective in reducing crime and victimization
  • PLS Description This Campbell systematic review assesses the effects of juvenile curfews on crime and victimization. The review summarizes findings from 12 studies. The search for this review was updated in March 2014, and the review published in March 2016.
  • Title Juvenile curfew effects on criminal behavior and victimization
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2016.3
Advocacy interventions to reduce or eliminate violence and promote the physical and psychosocial well-being of women who experience intimate partner abuse
  • Authors Carol Rivas, Jean Ramsay, Laura Sadowski, Leslie Davidson, Danielle Dunne, Sandra Eldridge, Kelsey Hegarty, Angela Taft, Gene Feder
  • Published date 2016-01-04
  • Coordinating group(s) Social Welfare
  • Type of document Title Protocol Review Plain language summary Previous version Data
  • Category Image Category Image
  • PLS Title Limited evidence and limited effects of advocacy to reduce intimate partner violence
  • PLS Description This Campbell systematic review assesses the effects of advocacy interventions on intimate partner violence and women's wellbeing. The review summarizes findings from 13 studies.
  • Title Advocacy interventions to reduce or eliminate violence and promote the physical and psychosocial well-being of women who experience intimate partner abuse
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2016.2
The impacts of business support services for small and medium enterprises on firm performance in low- and middle-income countries
  • Authors Caio Piza, Tulio Antonio Cravo, Linnet Taylor, Lauro Gonzalez, Isabel Musse, Isabela Furtado, Ana C. Sierra, Samer Abdelnour
  • Published date 2016-01-04
  • Coordinating group(s) International Development
  • Type of document Title Protocol Review Plain language summary
  • Category Image Category Image
  • PLS Title Business support services to small and medium enterprises seem to improve firm performance
  • PLS Description This Campbell systematic review assesses the effects of business support services in low - and middle-income countries on firm performance and economic development. The review summarizes findings from 40 studies.
  • Title The impacts of business support services for small and medium enterprises on firm performance in low- and middle-income countries
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2016.1
Preventive interventions to reduce youth gang violence in low- and middle-income countries
  • Authors Angela Higginson, Kathryn Ham Benier, Yulia Shenderovich, Laura Bedford, Lorraine Mazerolle, Joseph Murray
  • Published date 2015-11-02
  • Coordinating group(s) Crime and Justice, International Development
  • Type of document Title Protocol Review Plain language summary
  • Category Image Category Image
  • PLS Title There are no rigorous studies of preventive interventions to reduce youth involvement in gangs in low- and middle-income countries
  • PLS Description Youth gang crime poses a serious problem for low and middle-income countries costing billions of dollars in harm, loss of life and social disruption. Preventive interventions are intended to stop crime before it occurs, either by preventing youth from joining gangs or by reducing recidivism by rehabilitating gang members outside of the criminal justice system. This review examines the effectiveness of these preventive interventions in achieving their aims, as well as identifying factors behind successful implementation in low and middle-income countries.
  • Title Preventive interventions to reduce youth gang violence in low- and middle-income countries
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2015.18
Strategies to increase the ownership and use of insecticide-treated bednets to prevent malaria
  • Authors Lana Augustincic Polec, Jennifer Petkovic, Vivian Andrea Welch, Erin Ueffing, Elizabeth Tanjong Ghogomu, Jordi Pardo Pardo, Mark Grabowsky, Amir Attaran, George A. Wells, Peter Tugwell
  • Published date 2015-11-02
  • Coordinating group(s) International Development
  • Type of document Review Plain language summary
  • Category Image Category Image
  • PLS Title Free bednets increase ownership, and education can increase use
  • PLS Description This Campbell systematic review assesses the effectiveness of economic and educational strategies for ownership and appropriate use of insecticide-treated bednets in developing countries.
  • Title Strategies to increase the ownership and use of insecticide-treated bednets to prevent malaria
  • See the full review https://onlinelibrary.wiley.com/doi/10.4073/csr.2015.17
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