A researcher conducts an experimental study on patients at different outpatient clinics,including clinics in inner city,suburban,and rural locations.To help ensure that differences in scores are not related to clinic location,the researcher will apply which technique?
A) ANOVA
B) ANCOVA
C) Bivariate correlation analysis
D) Factor analysis

Question

Quizplus · Accepted Answer

Analysis of covariance,or ANCOVA,is used to examine the effect of a treatment apart from the effect of one or more potentially confounding variables,such as clinic location.ANOVA is used to examine differences among three or more groups and tests for difference in variance.Bivariate correlation measures the extent of relationship of two variables.Factor analysis examines interrelationships among large numbers of variables to identify clusters of variables most closely linked.

A Researcher Conducts an Experimental Study on Patients at Different