The primary goal of analysis of covariance (ANCOVA) is to
The primary goal of analysis of covariance (ANCOVA) is to:
a. Control for differences to determine if participant characteristics are statistically different.
b. Determine differences among groups while controlling for or removing the effects of some characteristics.
c. Increase the statistical power of experimental designs by increasing the error variance.
d. Measure the differences in some participant characteristics after the experiment has been conducted.