If a Researcher Wants to Examine Whether a Test Is

If a researcher wants to examine whether a test is reliable over a reasonable time period,he or she might

A) administer the test to the same people at two different points in time and calculate a correlation coefficient between the scores taken at time one and the scores taken at time two.
B) devise different forms of the test that measure the same general content and correlate the scores of each test with each other.
C) allow the test to be judged by several different individuals who all agree on what the test is designed to measure.
D) break the test into two sections and correlate the two sections with each other.