A researcher compared smokers and nonsmokers on scores on a physical functioning measure, controlling for weight (measured via the body mass index). Which analysis was likely used?

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Quizplus · Accepted Answer

ANCOVA (Analysis of Covariance) is a statistical analysis that controls for one or more covariates while comparing group differences on a dependent variable. In this case, weight (measured via the body mass index) is used as a covariate to control for its potential influence on physical functioning scores, allowing for a more accurate comparison between the groups of smokers and nonsmokers. MANOVA (Multivariate Analysis of Variance) and MANCOVA (Multivariate Analysis of Covariance) involve multiple dependent variables, which is not mentioned in the scenario. Canonical analysis is a multivariate analysis technique used to examine the relationship between two sets of variables.

A Researcher Compared Smokers and Nonsmokers on Scores on a Physical