Interval Estimation of Standardized Mean Differences in Paired-Samples Designs

Paired-samples designs are used frequently in educational and behavioral research. In applications where the response variable is quantitative, researchers are encouraged to supplement the results of a paired-samples t-test with a confidence interval (CI) for a mean difference or a standardized mean...

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Bibliographic Details
Published inJournal of educational and behavioral statistics Vol. 40; no. 4; pp. 366 - 376
Main Author Bonett, Douglas G.
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.08.2015
American Educational Research Association
Subjects
Computer Simulation
Confidence intervals
Educational Research
Effect Size
Equations (Mathematics)
Estimating techniques
Intervals
Matched Groups
Monte Carlo Methods
Pretests Posttests
Sample Size
Statistical Analysis
repeated measures design
pretest–posttest design
within-subject design
effect size
matched-pairs design
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ISSN1076-9986
1935-1054
DOI10.3102/1076998615583904

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Summary:Paired-samples designs are used frequently in educational and behavioral research. In applications where the response variable is quantitative, researchers are encouraged to supplement the results of a paired-samples t-test with a confidence interval (CI) for a mean difference or a standardized mean difference. Six CIs for standardized mean differences were examined and two were found to perform well under a wide range of conditions.
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ISSN:1076-9986
1935-1054
DOI:10.3102/1076998615583904