Background: Research indicates expert and novice teachers communicate differently during instruction. However, these differences have yet to be investigated in relation to student learning. Receiver selectivity theory offers an interpretive framework for understanding how expert-novice communication differences might function to discriminate…

The purpose of this Guide is to advise researchers, policymakers, and others on when it is possible to conduct a high-quality randomized controlled trial in education at reduced cost. Well-designed randomized controlled trials are recognized as the gold standard for evaluating the effectiveness of an intervention (i.e., program or practice) in…

This paper examines (1) the problems of program design and implementation in relation to evaluation design, the confusion between research and evaluation design, and the overemphasis on quantitative data; (2) clarifies misconceptions about these problems and the evaluation process; and (3) suggests ways of avoiding these problems in the future.…