Power Analysis and Sample Size Planning in ANCOVA Designs
نویسندگان
چکیده
منابع مشابه
Accuracy in parameter estimation for ANCOVA and ANOVA contrasts: sample size planning via narrow confidence intervals.
Contrasts of means are often of interest because they describe the effect size among multiple treatments. High-quality inference of population effect sizes can be achieved through narrow confidence intervals (CIs). Given the close relation between CI width and sample size, we propose two methods to plan the sample size for an ANCOVA or ANOVA study, so that a sufficiently narrow CI for the popul...
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ژورنال
عنوان ژورنال: Psychometrika
سال: 2019
ISSN: 0033-3123,1860-0980
DOI: 10.1007/s11336-019-09692-3