文章基本信息

标题：The effectiveness of family planning programs evaluated with true experimental designs.
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作者：K E Bauman
期刊名称：American journal of public health
印刷版ISSN：0090-0036
出版年度：1997
卷号：87
期号：4
页码：666-669
出版社：American Public Health Association
摘要：OBJECTIVES: This paper describes the magnitude of effects for family planning programs evaluated with true experimental designs. METHODS: Studies that used true experimental designs to evaluate family planning programs were identified and their results subjected to meta-analysis. RESULTS: For the 14 studies with the information needed to calculate effect size, the Pearson r between program and effect variables ranged from -.08 to .09 and averaged .08. CONCLUSIONS: The programs evaluated in the studies considered have had, on average, smaller effects than many would assume and desire.