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Interpreting and visualizing regression models using stata
In: A Stata Press publication
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World Affairs Online
Article(electronic)#5April 1, 1999
Using Group Mean Centering for Computing Adjusted Means by Site in a Randomized Experimental Design: The Case of California's Work Pays Demonstration Project
In: Evaluation review: a journal of applied social research, Volume 23, Issue 2, p. 146-161
ISSN: 1552-3926
When analyzing data from a randomized experiment that is replicated across multiple sites and includes covariates, the covariates can adjust for differences from either the grand mean or the group (site) mean. The analysis strategy determines the reference point. Pooling the sites and using a standard analysis of covariance (ANCOVA) adjusts for differences around the grand mean, whereas analyzing each site separately adjusts for differences around each group (site) mean. This article demonstrates that group mean centering permits pooling data from multiple sites into a single analysis while still using the group mean as a reference point for evaluating the covariate.
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Article(print)#61999
Using Group Mean Centering for Computing Adjusted Means by Site in a Randomized Experimental Design. The Case of California's Work Pays Demonstration Project
In: Evaluation review: a journal of applied social research, Volume 23, Issue 2, p. 146-161
ISSN: 0193-841X, 0164-0259
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Article(electronic)#7May 2016
Risk of re-report: A latent class analysis of infants reported for maltreatment
In: Child abuse & neglect: the international journal ; official journal of the International Society for the Prevention of Child Abuse and Neglect, Volume 55, p. 22-31
ISSN: 1873-7757
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Article(electronic)#8September 28, 2016
Characteristics of Youth Remaining in Foster Care Through Age 19: A Pre- and Post-Policy Cohort Analysis of California Data
In: Journal of public child welfare, Volume 11, Issue 1, p. 40-57
ISSN: 1554-8740
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Article(electronic)#9July 19, 2013
Explaining Differences in Hepatitis C Between U.S. Veterans and Nonveterans in Treatment for Substance Abuse: Results From a Regression Decomposition
In: Substance use & misuse: an international interdisciplinary forum, Volume 48, Issue 10, p. 854-862
ISSN: 1532-2491
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