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Direct linkCartwright, Nancy – Educational Research and Evaluation, 2019
Across the evidence-based policy and practice (EBPP) community, including education, randomised controlled trials (RCTS) rank as the most "rigorous" evidence for causal conclusions. This paper argues that that is misleading. Only narrow conclusions about study populations can be warranted with the kind of "rigour" that RCTs…
Descriptors: Evidence Based Practice, Educational Policy, Randomized Controlled Trials, Error of Measurement
Simpson, Adrian – Educational Research and Evaluation, 2018
Ainsworth et al.'s paper "Sources of Bias in Outcome Assessment in Randomised Controlled Trials: A Case Study" examines alternative accounts for a large difference in effect size between 2 outcomes in the same intervention evaluation. It argues that the probable explanation relates to masking: Only one outcome measure was administered by…
Descriptors: Statistical Bias, Randomized Controlled Trials, Effect Size, Outcome Measures
