To establish concurrent validity,a researcher must include which of the following in a survey that includes a new index of depression?
A)a system for weighting responses
B)multiple forms of the same index
C)a previously validated measure of depression
D)single items and matrix questions

Question

Quizplus · Accepted Answer

To establish concurrent validity, a previously validated measure of depression must be included in the survey along with the new index. This allows for comparison between the two measures to determine how well the new index aligns with the established measure of depression. A, B, and D are not necessary for establishing concurrent validity.

To Establish Concurrent Validity,a Researcher Must Include Which of the Following