Veronica was thrilled to discover that her experimental manipulation resulted in a significant difference between conditions. Now, she is interested in knowing about the magnitude of the difference between the groups. To determine this, she should look at which of the following?
A) p-value
B) t-value
C) degrees of freedom
D) effect size d

Question

Quizplus · Accepted Answer

The effect size (d) directly measures the magnitude of the difference between groups, which is what Veronica is interested in. While p-value, t-value, and degrees of freedom are important for understanding statistical significance and the parameters of the test, they do not directly inform about the size of the effect.

Veronica Was Thrilled to Discover That Her Experimental Manipulation Resulted