Frequently downloaded

Plain Language Summaries of Campbell’s systematic reviews are now available. These summaries are published as part of our commitment to helping people use and interpret research evidence.
Crime and Justice
International Development
Social Welfare

This Campbell systematic review examines the effects of closed circuit television (CCTV) on property crime and violent crime. The review reports on whether using CCTV results in crime displacement, and also assesses whether using CCTV leads to the spread of crime prevention benefits. The authors found 44 evaluations. The studies were from the United Kingdom, the United States of America, Canada, Norway and Sweden. Most of the studies (34) were from the United Kingdom.

This Campbell systematic review assesses the effects of psychosocial interventions for school refusal. The review summarizes the findings from eight studies.

This Campbell systematic review examines the effects of Payment for Environmental Services (PES) programmes on deforestation and poverty, and whether environmental and poverty reduction goals conflict with one another. The review summarizes evidence from 11 studies covering six PES programmes in four countries.

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.

The list below shows the 15 most frequently downloaded systematic reviews from the Campbell online library. We only count downloads for unique IPs. This means that even if the same person downloads the same document twice, it only counts as one download.
1Sexual offender treatment for reducing recidivism among convicted sex offendersDownload doc4219
2Workplace disability management programs for promoting return-to-workDownload doc4042
3The 'Tools of the Mind' curriculum for improving self-regulation in early childhoodDownload doc3914
412-step programs for reducing illicit drug useDownload doc3804
5Mindfulness-based stress reduction (MBSR) for improving health, quality of life and social functioning in adultsDownload doc2990
6Small class sizes for improving student achievement in primary and secondary schoolsDownload doc2941
7Legitimacy in Policing: A Systematic ReviewDownload doc2919
8School-based interventions for reducing disciplinary school exclusionDownload doc2833
9Effect of early, brief computerized interventions on risky alcohol and cannabis use among young peopleDownload doc2634
10Mindfulness-based interventions for improving cognition, academic achievement, behavior and socio-emotional functioning of primary and secondary studentsDownload doc2602
11E-learning of evidence-based healthcare (EBHC) to increase EBHC competencies in healthcare professionalsDownload doc2475
12The effects of school-based decision-making on educational outcomes in low- and middle-income contextsDownload doc1952
13Deworming and adjuvant interventions for improving the developmental health and well-being of children in low- and middle-income countriesDownload doc1590
14Later school start times for supporting the education, health and well-being of high school studentsDownload doc1577
15The effectiveness and efficiency of cash-based approaches in emergenciesDownload doc1544

Contact us

  • P.O. Box 222, Skøyen,
    N-0213 Oslo, Norway
  • (+47) 21 07 81 00