Variable criteria sequential stopping rule: Validity and power with repeated measures ANOVA, multiple correlation, MANOVA and relation to Chi-square distribution

• Published in: Behavior research methods Vol. 50; no. 5; pp. 1988 - 2003
• Main Author: Fitts, Douglas A.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.10.2018
• Subjects: Analysis of Variance; Behavioral Science and Psychology; Chi-Square Distribution; Cognitive Psychology; Humans; Psychology; Reproducibility of Results; Research Design; Sample Size; Multiple correlation; Reduction of subjects; Group sequential stopping rules; Repeated measures; Sample size planning; Effect size; Friedman test; Power analysis; Chi square; MANOVA; Analysis of variance; Null hypothesis significance test

The variable criteria sequential stopping rule (vcSSR) is an efficient way to add sample size to planned ANOVA tests while holding the observed rate of Type I errors, α o , constant. The only difference from regular null hypothesis testing is that criteria for stopping the experiment are obtained fr...