Cognitive diagnostic models (CDMs) are a family of psychometric models designed to provide categorical classifications for multiple latent attributes. CDMs provide more granular evidence than other psychometric models and have potential for guiding teaching and learning decisions in the classroom. However, CDMs have primarily been conducted using…

The authors investigated the comparative effect of the learning cycle and expository instruction on 8th-grade students' achievement in genetics. They adopted the nonequivalent control group design as a type of quasiexperimental design. The experimental group (N = 104) received learning cycle instruction, and the control group (N = 109) received…

Effects of author-generated and learner-generated elaborations on subjects' abilities to recall, classify, and apply conceptual knowledge were compared for 94 college undergraduates studying a passage on psychological concepts. Author-generated elaborations and specific elaboration activities produced superior effects in comparison with…