The article critiques a 1987 (Kavale and Forness) meta-analysis which concluded that research does not support modality-based instruction. The study is faulted for its selection criteria as well as its failure to consider demographic differences, achievement level differences, multiplicity of preferences, definitions of terms, effect-size…

This response to Dunn (EC 221 793) reaffirms the conclusions of a meta analysis on modality-based instruction, through elaboration of the study's selection criteria and methodological factors. Although modality-based instruction is seen to be intuitively appealing, educators are encouraged, instead, to apply instructional methods of proven…

This response to an article by Karen Tateyama-Sniezek (EC 230 117), which examined the effectiveness of cooperative learning with mildly disabled students, reconsiders a table by adding more comparison statistics, effect sizes, and standard individual measures of achievement. Noted are the scarcity of studies including individual accountability…

A literature search identified 39 studies assessing modality preferences and modality teaching. The studies, involving 3,087 disabled and nondisabled elementary/secondary level subjects, were quantitatively synthesized. Subjects receiving differential instruction based on modality preferences exhibited only modest gains. (Author/JDD)

In the context of a discussion of the use of meta-analysis techniques, two articles take issue with the findings of Casto and Mastropieri concerning effects of early intervention, in particular age-at-start parent involvement, conceptual and methodological problems. The authors of the original article provide rebuttals to the critiques. (JW)