ITEM METADATA RECORD
Title: The power of randomization tests for single-case phase designs
Authors: Ferron, J ×
Onghena, Patrick #
Issue Date: 1996
Publisher: Heldref publications
Series Title: Journal of experimental education vol:64 issue:3 pages:231-239
Abstract: Monte Carlo methods were used to estimate the power of randomization tests used with single-case designs involving the random assigmment of treatments to phases. The design studied involved 2 treatments and 6 phases. The power was studied for 6 standardized effect sizes (0,.2,.5,.8, 1.1, and 1.4), 4 levels of autocorrelation (Ist order autocorrelation coefficients of -.3, 0,.3, and .6), and 5 different phase lengths (4, 5, 6, 7, and 8 observations). power was estimated for each condition by simulating 10,000 experiments. The results showed an adequate level of power (>.80) when effect sizes were large (1.1 and 1.4), phase lengths exceeded 5, and autocorrelation was not negative.
ISSN: 0022-0973
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Methodology of Educational Sciences
× corresponding author
# (joint) last author

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