Accession Number:

ADA076775

Title:

Specific Interaction Contrasts: A Statistical Tool for Repeated-Measures Designs.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA

Personal Author(s):

Report Date:

1976-12-01

Pagination or Media Count:

33.0

Abstract:

Experimental psychologists often use multifactor repeated-measure designs in which interactions are the most important effects to be assessed. An experimenter has at least five ways to evaluate such interactions a univariate repeated-measures analysis of variance ANOVA, with probably inflated estimates of the degrees of freedom a univariate repeated-measures ANOVA with the Greenhouse-Geisser conservative estimate of the degrees of freedom the Greenhouse-Geisser stepwise analysis a multivariate ANOVA and specific interaction contrasts. We show that no matter which of the above paths is chosen, the careful experimenter must compute specific interaction contrasts i.e., t-tests. A worked example is given. Author

Subject Categories:

  • Psychology
  • Statistics and Probability

Distribution Statement:

APPROVED FOR PUBLIC RELEASE