Campbell systematic reviews

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The Campbell Library (334)

Additional Info

  • Authors Giel Ton, Sam Desiere, Wytse Vellema, Sophia Weituschat, Marijke D'Haese
  • Published date 2017-12-12
  • Coordinating group(s) International Development
  • Type of document Review Plain language summary
  • Volume 13
  • Category Image Category Image
  • PLS Title Contract farming improves incomes for better-off farmers
  • PLS Description Contract farming is a sales arrangement agreed before production begins, which provides the farmer with resources or services. The service package provided by the firm varies per location, and can include transport, certification, input provisioning and credit. This systematic review summarises evidence on income effects for smallholders to assess average effects and explore combinations of factors that increase these effects.
  • Title The effectiveness of contract farming for raising income of smallholder farmers in low- and middle-income countries
  • Spanish PLS La agricultura por contrato incrementa los ingresos para agricultores en mejores condiciones
  • Spanish PLS Description La agricultura por contrato es un acuerdo de venta establecido antes de que comience la producción, que proporciona recursos o servicios al agricultor. El paquete de servicios proporcionado por la empresa varía según la ubicación, y puede incluir transporte, certificación, suministro de insumos y créditos. Esta revisión sistemática resume la evidencia sobre los efectos de los ingresos en los pequeños agricultores, los efectos promedio y combinaciones de factores que aumentan los mismos.

Additional Info

  • Authors Jochen Kluve, Susana Puerto, David Robalino, Jose Manuel Romero, Friederike Rother, Jonathan Stöterau, Felix Weidenkaff, Marc Witte
  • Published date 2017-12-04
  • Coordinating group(s) Education, International Development, Social Welfare
  • Type of document Title Protocol Review Plain language summary
  • Volume 13
  • PLS Title Active labour market programmes for youth increase employment and earnings. Effects vary between programmes and context.
  • PLS Description This systematic review assesses the impact of youth employment interventions on the labour market outcomes of young people. The included interventions are training and skills development, entrepreneurship promotion, employment services and subsidized employment. Outcomes of interest include employment, earnings and business performance outcomes.
  • Title Interventions to improve the labour market outcomes of youth: a systematic review of training, entrepreneurship promotion, employment services and subsidized employment interventions
  • Spanish PLS Los programas activos en el mercado laboral para jóvenes aumentan el empleo y los ingresos, pero los efectos varían entre programas y contextos
  • Spanish PLS Description El desempleo juvenil es mucho mayor que la tasa de desempleo promedio para los adultos; en algunos casos, es hasta más de tres veces mayor. Hoy, más de 73 millones de jóvenes están en situación de desempleo en todo el mundo. Además, dos de cada cinco jóvenes en la fuerza laboral trabajan, pero son pobres o están desempleados. Por ello, el desafío del empleo juvenil no solo se trata de la creación de empleos, sino especialmente de mejorar la calidad de los mismos para los jóvenes. Esta revisión sistemática evalúa el impacto de las intervenciones de empleo juvenil en los resultados del mercado laboral de los jóvenes. Las intervenciones que se incluyen son la capacitación y desarrollo de habilidades, la promoción de la iniciativa empresarial, servicios de empleo y empleo subsidiado. Los resultados de interés incluyen empleo, ingresos y resultados de desempeño empresarial.

Additional Info

  • Authors Michael S. Kelly, Whitney Key, Andrew Brake, Miguel Cortes, Susan Wardzala
  • Published date 2017-12-01
  • Coordinating group(s) Education
  • Type of document Title
  • Title Educator Professional Learning Communities (PLCs) for improving academic, social, and behavioral outcomes in K-12 schools

Additional Info

  • Authors The Steering Group of The Campbell Collaboration
  • Published date 2017-11-24
  • Coordinating group(s) Methods
  • Type of document Policies and Guidelines
  • Title Campbell Collaboration Systematic Reviews: Policies and Guidelines

Additional Info

  • Authors Sebastian Vollmer, Sarah Khan, Le Thi Ngoc Tu, Atika Pasha, Soham Sahoo
  • Published date 2017-11-21
  • Coordinating group(s) International Development
  • Type of document Title Protocol
  • Title The effect of interventions for women’s empowerment on children's health and education

Additional Info

  • Authors Howard White
  • Published date 2017-11-14
  • Coordinating group(s) Crime and Justice
  • Type of document Policy brief
  • Title Policy brief 4: The effects of sentencing policy on re-offending

Additional Info

  • Authors Daniel C. Miller, Pablo J. Ordonez, Kathy Baylis, Karl Hughes, Pushpendra Rana
  • Published date 2017-11-02
  • Coordinating group(s) International Development
  • Type of document Title Protocol Campbell innovations Evidence and gap map
  • Title The impacts of agroforestry on agricultural productivity, ecosystem services, and human well-being in low- and middle-income countries: an evidence and gap map

Additional Info

  • Authors Michael de Vibe, Arild Bjørndal, Sabina Fattah, Gunvor M Dyrdal, Even Halland, Emily E Tanner-Smith
  • Published date 2017-11-01
  • Coordinating group(s) Social Welfare
  • Type of document Title Protocol Review User abstract Plain language summary Previous version
  • Volume 13
  • PLS Title Mindfulness training improves health and quality of life for adults
  • PLS Description Stress and stress-related mental health problems are major causes of illness and disability. Mindfulness Based Stress Reduction is a group-based health promotion intervention to improve health and the way people deal with stress and life’s challenges. The core ingredient is mindfulness training through physical and mental exercises practiced daily for eight weeks. The mindful non-judgmental attitude of being present with what arises is practiced in the formal exercises and in everyday situations. This review assesses the effect of MBSR programs on outcome measures of mental and physical health, quality of life and social functioning in adults.
  • Title Mindfulness-based stress reduction (MBSR) for improving health, quality of life and social functioning in adults
  • Spanish PLS La práctica del Mindfulness o Atención Plena mejora la salud y la calidad de vida en adultos
  • Spanish PLS Description El estrés y los problemas de salud mental relacionados con este, constituyen algunas de las causas principales de enfermedad y discapacidad. El programa Mindfulness de Reducción de Estrés es una intervención grupal de promoción de la salud para mejorar la forma en que las personas lidian con el estrés y los desafíos de la vida. El componente esencial es el entrenamiento de la atención plena mediante ejercicios físicos y mentales practicados a diario por un periodo de ocho semanas. La actitud consciente y no crítica de estar presente en lo que surge, se practica mediante ejercicios formales, así como en situaciones cotidianas. Esta revisión evalúa el efecto de los programas de Mindfulness en las variables de resultado para la salud mental y física, la calidad de vida y el funcionamiento social en adultos.

Additional Info

  • Authors Charlotte Gill, David Weisburd, Cody Telep, Zoe Vitter, Trevor Bennett
  • Published date 2017-10-18
  • Coordinating group(s) Crime and Justice
  • Type of document Title Protocol
  • Title Community-oriented policing to reduce crime, disorder, and fear and improve legitimacy and satisfaction with police

Additional Info

  • Authors Jennifer Hanratty, Laura Neeson, Tania Bosqui, Michael Duffy, Laura Dunne, Paul Connolly
  • Published date 2017-10-16
  • Coordinating group(s) Social Welfare
  • Type of document Title
  • Title Psychosocial interventions for preventing PTSD in children exposed to war and conflict-related violence
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