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JournalISSN: 1891-1803

Campbell Systematic Reviews 

The Campbell Collaboration
About: Campbell Systematic Reviews is an academic journal published by The Campbell Collaboration. The journal publishes majorly in the area(s): Psychological intervention & Medicine. It has an ISSN identifier of 1891-1803. It is also open access. Over the lifetime, 638 publications have been published receiving 12790 citations. The journal is also known as: Campbell Syst Rev.


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Journal Article
TL;DR: A systematic review and meta-analysis of the effectiveness of programs designed to reduce school bullying perpetration and victimization (i.e. being bullied) is presented in this article. But the authors indicate the pitfalls of previous reviews and explain in detail how the present systematic review addresses the gaps in the existing literature on bullying prevention.
Abstract: BACKGROUND School bullying has serious short-term and long-term effects on children’s physical and mental health. Various anti-bullying programs have been implemented world wide and, more rarely, evaluated. Previous narrative reviews, summarizing the work done on bullying prevention, as well as previous meta-analyses of anti-bullying programs, are limited. The definition of school bullying includes several key elements: physical, verbal, or psychological attack or intimidation that is intended to cause fear, distress, or harm to the victim; an imbalance of power (psychological or physical), with a more powerful child (or children) oppressing less powerful ones; and repeated incidents between the same children over a prolonged period. School bullying can occur in school or on the way to or from school. It is not bullying when two persons of the same strength (physical, psychological, or verbal) victimize each other. OBJECTIVES This report presents a systematic review and meta-analysis of the effectiveness of programs designed to reduce school bullying perpetration and victimization (i.e. being bullied). The authors indicate the pitfalls of previous reviews and explain in detail how the present systematic review and meta-analysis addresses the gaps in the existing literature on bullying prevention. SELECTION CRITERIA Studies were included in this review if they evaluated the effects of an anti-bullying program by comparing an experimental group who received the intervention with a control group who did not. The word ‘experimental’ here refers to students who received the program and does not necessarily imply randomization. Four types of research design were included: a) randomized experiments, b) experimental-control comparisons with before and after measures of bullying, c) other experimental-control comparisons and d) quasi-experimental age-cohort designs, where students of age X after the intervention were compared with students of the same age X in the same school before the intervention. Both published and unpublished (e.g. PhD theses) reports were included. 4 This document is a research report submitted to the U.S. Department of Justice. This report has not been published by the Department. Opinions or points of view expressed are those of the author(s) and do not necessarily reflect the official position or policies of the U.S. Department of Justice.

269 citations

Journal ArticleDOI
TL;DR: In this article, the authors examined the relationship of selected moderator variables to the effects of CBT on the recidivism of general offender populations and identified the moderator variables that describe the study characteristics associated with larger and smaller effects.
Abstract: Cognitive-behavioral therapy (CBT) is among the more promising rehabilitative treatments for criminal offenders. Reviews of the comparative effectiveness of different treatment approaches have generally ranked it in the top tier with regard to effects on recidivism (e.g., Andrews et al., 1990; Lipsey & Wilson, 1998). It has a well-developed theoretical basis that explicitly targets “criminal thinking” as a contributing factor to deviant behavior (Beck, 1999; Walters, 1990; Yochelson & Samenow, 1976). And, it can be adapted to a range of juvenile and adult offenders, delivered in institutional or community settings by mental health specialists or paraprofessionals, and administered as part of a multifaceted program or as a stand-alone intervention. Meta-analysis has consistently indicated that CBT, on average, has significant positive effects on recidivism. However, there is also significant variation across studies in the size of those treatment effects. Identification of the moderator variables that describe the study characteristics associated with larger and smaller effects can further develop our understanding of the effectiveness of CBT with offenders. Of particular importance is the role such moderator analysis can play in ascertaining which variants of CBT are most effective. The objective of this systematic review is to examine the relationships of selected moderator variables to the effects of CBT on the recidivism of general offender populations.

267 citations

Journal ArticleDOI
TL;DR: In this paper, the relative effectiveness of conditional and unconditional cash transfers in improving enrollment, attendance, and test scores in developing countries was assessed, particularly the role of the intensity of conditions and the effects of priming (with respect to the importance of children's schooling) in cash transfer programs.
Abstract: Increasing educational attainment around the world is one of the key aims of the Millennium Development Goals. Cash transfer programs, both conditional and unconditional, are a popular social protection tool in developing countries that aim, among other things, to improve education outcomes in developing countries. The debate over whether these programs should include conditions has been at the forefront of recent global policy discussions. This systematic review aims to complement the existing evidence on the effectiveness of these programs in improving schooling outcomes and help inform the debate surrounding the design of cash transfer programs. Our main objective was to assess the relative effectiveness of conditional and unconditional cash transfers in improving enrollment, attendance and test scores in developing countries. Our secondary objective was to understand the role of different dimensions of the cash transfer programs, particularly the role of the intensity of conditions and the effects of priming (with respect to the importance of children’s schooling) in cash transfer programs.

257 citations

Journal Article
TL;DR: In this paper, the authors investigated whether exercise alone or exercise as part of a comprehensive intervention can improve self-esteem among children and young people, and concluded that exercise has positive short-term effects on selfesteem.
Abstract: BACKGROUND Psychological and behavioural problems in children and adolescents are common, and improving self-esteem may help to prevent the development of such problems. There is strong evidence for the positive physical health outcomes of exercise, but the evidence of exercise on mental health is scarce. OBJECTIVES To determine if exercise alone or exercise as part of a comprehensive intervention can improve self-esteem among children and young people. SEARCH STRATEGY Computerised searches in MEDLINE, EMBASE, The Cochrane Controlled Trials Register (CENTRAL), CINAHL, PsycINFO and ERIC were undertaken and reference lists from relevant articles were scanned. Relevant studies were also traced by contacting authors. Dates of most recent searches: May 2003 in (CENTRAL), all others: January 2002. SELECTION CRITERIA Randomised controlled trials where the study population consisted of children and young people aged from 3 to 20 years, in which one intervention arm was gross motor activity for more than four weeks and the outcome measure was self-esteem. DATA COLLECTION AND ANALYSIS Two reviewers independently selected trials for inclusion, assessed the validity of included trials and extracted data. Investigators were contacted to collect missing data or for clarification when necessary. MAIN RESULTS Twenty-three trials with a total of 1821 children and young people were included. Generally, the trials were small, and only one was assessed to have a low risk of bias. Thirteen trials compared exercise alone with no intervention. Eight were included in the meta-analysis, and overall the results were heteregeneous. One study with a low risk of bias showed a standardised mean difference (SMD) of 1.33 (95% CI 0.43 to 2.23), while the SMD's for the three studies with a moderate risk of bias and the four studies with a high risk of bias was 0.21 (95% CI -0.17 to 0.59) and 0.57 (95% CI 0.11 to 1.04), respectively. Twelve trials compared exercise as part of a comprehensive programme with no intervention. Only four provided data sufficient to calculate overall effects, and the results indicate a moderate short-term difference in self-esteem in favour of the intervention [SMD 0.51 (95% CI 0.15 to 0.88)]. REVIEWER'S CONCLUSIONS The results indicate that exercise has positive short-term effects on self-esteem in children and young people. Since there are no known negative effects of exercise and many positive effects on physical health, exercise may be an important measure in improving children's self-esteem. These conclusions are based on several small low-quality trials.

244 citations

Journal ArticleDOI
TL;DR: Report abstracts can be used to eliminate clearly irrelevant reports, obviating the need to obtain the full text of those reports or to return to the bibliographic database at a later time.
Abstract: abstracts can be used to eliminate clearly irrelevant reports, obviating the need to obtain the full text of those reports or to return to the bibliographic database at a later time. Accession number/Unique identifier: it is advisable to set aside an unused field for storing the Unique Identifier/Accession Number of records downloaded, such as the ERIC number (EJ or ED). This allows subsequent linkage to the full database record and also facilitates information management such as duplicate detection and removal. Affiliation/address: may include the institutional affiliation and / or e-mail address of the author(s). Article identifier/Digital object identifier (DOI): should be used to cite and link to the full record.

234 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
202345
202286
202150
202047
201947
201840