A Researcher Samples Unemployed Workers and Wants to Determine If

Multiple Choice

A researcher samples unemployed workers and wants to determine if the variance of depression scores for the unemployed prior to becoming unemployed is higher than the variance of depression scores for the unemployed after becoming unemployed. Which one of the following procedures is appropriate to test this?

A) Test for two dependent variances
B) Test for two independent variances
C) Test for a single variance
D) None of the above