Some factors that effect [sic] statistical power in ANCOVA: a population study

Some factors that effect [sic] statistical power in ANCOVA: a population study

A study into the factors that affect power in an analysis of covariance (ANCOVA) design were examined. Four factors - sample size, significance level, dependent variable-covariate correlations and homogeneity of regression - were varied in a population study. Results indicate that power increased wh...

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Bibliographic Details
Main Author: Tvedt, Valerie Maria
Format: Others
Published: CSUSB ScholarWorks 2000
Subjects:
Analysis of covariance
Regression analysis > Psychological aspects
Applied Behavior Analysis
Online Access:https://scholarworks.lib.csusb.edu/etd-project/1764
https://scholarworks.lib.csusb.edu/cgi/viewcontent.cgi?article=2764&context=etd-project
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spelling ndltd-csusb.edu-oai-scholarworks.lib.csusb.edu-etd-project-27642019-10-23T03:31:20Z Some factors that effect [sic] statistical power in ANCOVA: a population study Tvedt, Valerie Maria A study into the factors that affect power in an analysis of covariance (ANCOVA) design were examined. Four factors - sample size, significance level, dependent variable-covariate correlations and homogeneity of regression - were varied in a population study. Results indicate that power increased when the dependent variable-covariate correlations increased and when sample size increased. Power also increased when a less stringent alpha level was used. Homogeneity of regression did not effect power. Implications and recommendations for the applied researcher are discussed. 2000-01-01T08:00:00Z text application/pdf https://scholarworks.lib.csusb.edu/etd-project/1764 https://scholarworks.lib.csusb.edu/cgi/viewcontent.cgi?article=2764&context=etd-project Theses Digitization Project CSUSB ScholarWorks Analysis of covariance Regression analysis -- Psychological aspects Applied Behavior Analysis
collection NDLTD
format Others
sources NDLTD
topic Analysis of covariance
Regression analysis -- Psychological aspects
Applied Behavior Analysis
spellingShingle Analysis of covariance
Regression analysis -- Psychological aspects
Applied Behavior Analysis
Tvedt, Valerie Maria
Some factors that effect [sic] statistical power in ANCOVA: a population study
description A study into the factors that affect power in an analysis of covariance (ANCOVA) design were examined. Four factors - sample size, significance level, dependent variable-covariate correlations and homogeneity of regression - were varied in a population study. Results indicate that power increased when the dependent variable-covariate correlations increased and when sample size increased. Power also increased when a less stringent alpha level was used. Homogeneity of regression did not effect power. Implications and recommendations for the applied researcher are discussed.
author Tvedt, Valerie Maria
author_facet Tvedt, Valerie Maria
author_sort Tvedt, Valerie Maria
title Some factors that effect [sic] statistical power in ANCOVA: a population study
title_short Some factors that effect [sic] statistical power in ANCOVA: a population study
title_full Some factors that effect [sic] statistical power in ANCOVA: a population study
title_fullStr Some factors that effect [sic] statistical power in ANCOVA: a population study
title_full_unstemmed Some factors that effect [sic] statistical power in ANCOVA: a population study
title_sort some factors that effect [sic] statistical power in ancova: a population study
publisher CSUSB ScholarWorks
publishDate 2000
url https://scholarworks.lib.csusb.edu/etd-project/1764
https://scholarworks.lib.csusb.edu/cgi/viewcontent.cgi?article=2764&context=etd-project
work_keys_str_mv AT tvedtvaleriemaria somefactorsthateffectsicstatisticalpowerinancovaapopulationstudy
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