A student is trying to determine whether an interaction effect is present in an experiment with a 2 * 2 design.The data are summarized in a table.Which of the following methods should the student use to estimate whether or not an interaction effect is present?
A) addition method
B) subtraction method
C) multiplication method
D) division method

Question

Quizplus · Accepted Answer

The subtraction method is used to determine interaction effects by comparing the differences between levels of one factor across the levels of another factor.

A Student Is Trying to Determine Whether an Interaction Effect