Tom Wanted to Assess the Reliability of His Measure of Anxiety

Multiple Choice

Tom wanted to assess the reliability of his measure of anxiety so he had a group of introductory psychology students complete the measure of anxiety on March 3^rd and again on March 25^th. He then compared the scores that the students made on the two testing occasions using a statistical technique called correlation. He used this quantitative index as his measure of reliability. Tom used what method to assess reliability?

A) test-retest
B) equivalent forms
C) split-half
D) Cronbach's alpha