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
Education
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.
 

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