Question

1. When looking at a line graph of a 2 × 2 ANOVA, what would indicate that a possible interaction exists?

A. nonparallel lines

B. parallel lines

C. overlapping lines

D. both parallel and nonparallel lines

2. When interpreting the results of a 2 × 2 ANOVA, a researcher should focus on the mean values:

A. of both the rows and columns.

B. of the columns

C. of the rows

D. within each of the cells

3. Javier tests the impact of parents' education levels (high school vs. college) and income levels (low, medium, and high) on academic performances of students in elementary school. How many degrees of freedom for the interaction effect does Javier have in his study?

A. 1

B. 2

C. 3

D. 6

Answer 1