A Meta-Analysis of 50 Years of Research on the Direct Instruction Curricular Program, 8 countries, 1966-2017 (ICPSR 38766)
Version Date: May 9, 2023 View help for published
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Jean Stockard, University of Oregon
https://doi.org/10.3886/ICPSR38766.v1
Version V1
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This study is a quantitative meta-analysis of literature regarding the effectiveness of Direct Instruction (DI) curricular programs. DI is a highly structured curriculum first developed in the 1960s, expanded in subsequent years, and designed for a range of academic areas and student ages. The study authors examined 455 reports of DI's effectiveness published between 1966 and early in 2017. From these studies researchers calculated 4,643 effects, and also gathered detailed information on the studies including characteristics of the students, their schools, the length and quality of the intervention, characteristics of teachers, measures used to assess outcomes, and the research design. Data were gathered on both academic subjects and affective outcomes. Students ranged in age from pre-school to adult. Coders also noted potential methodological concerns with research design, measures, and analysis.
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Geographic Coverage View help for Geographic Coverage
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region
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The geographic areas to which the data are relevant include the United States and other English-speaking countries.
Study Purpose View help for Study Purpose
The purpose of this study was to examine the literature on the effectiveness of Direct Instruction (DI). There are three levels of analysis: effect sizes, nested within study designs, nested within studies.
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A total of 549 research reports regarding DI were identified. Of these reports 16 (3% and all unpublished manuscripts) could not be located. After examination it was concluded that valid effect sizes could not be obtained for 78 reports, leaving a total of 455 reports that were examined in detail. A given study might be described in more than one report (e.g. both a dissertation and a research article) and thus the "study" was the highest level of analysis (n=327). A study might include more than one design, resulting in designs potentially nested within studies. There were a total of 478 designs in the sample and 4,643 effect sizes. The data file is at the level of effect sizes, with unique identifiers for designs and studies.
Universe View help for Universe
Studies of the Direct Instruction curricular program
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These data are freely available to data users at ICPSR member institutions. The curation and dissemination of this study are provided by the institutional members of ICPSR. How do I access ICPSR data if I am not at a member institution?