Randomised controlled trials for policy interventions: a review of reviews and meta-regression
From the resampling studies we have no evidence that the absence of randomisation directly influences the effect size of policy interventions in a systematic way. At the level of individual studies, non-randomised trials may lead to different effect sizes, but this is unpredictable. Many of the exam...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2010-03.
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| Subjects: | |
| Online Access: | Get fulltext |