Vincente intends to examine differences between three groups of district curriculum coordinators that received either no formal training, a web-based training, or a cooperative group experience as instruction for the core standards. He tested participants' knowledge of the standards both before treatment and then after treatment. Given his design, which of the following analysis should Vincente conduct?
A) Independent t test
B) Dependent t test
C) ANCOVA
D) ANOVA

Question

Quizplus · Accepted Answer

ANCOVA is appropriate here as it allows for the comparison of post-treatment scores across the three groups while controlling for pre-treatment scores as a covariate.

Vincente Intends to Examine Differences Between Three Groups of District