Which finding would support the validity of the DMQ measure?

• A. A positive correlation between the DMQ scores and the CG scores
• B. A negative correlation between the DMQ scores and the CG scores
• C. A positive correlation between participants' scores on two different administrations of the DMQ
• D. A negative correlation between participants' scores on two different administrations of the DMQ

Answer: (A)

To evaluate the validity of the DMQ measure, it is important to consider how well it correlates with other established measures that assess similar constructs. Validity refers to how accurately a test measures what it is intended to measure.

A positive correlation between the DMQ scores and the CG scores indicates that as scores on the DMQ increase, scores on the CG benchmark measure also increase. This suggests that the DMQ is measuring a construct similar to that of the CG measure, reinforcing the idea that it is valid in measuring the intended concept. In psychological testing, a positive relationship between two measures that are intended to assess the same underlying construct can illustrate that the DMQ is effectively capturing the relevant data.

The other options do not support the validity of the DMQ measure in the same way. A negative correlation or a lack of correlation would suggest that the DMQ does not measure the same construct as the other measures or that it might not be functioning reliably across multiple administrations if consistency is lacking in scores. Hence, the positive correlation with the CG scores is a strong indicator that the DMQ is a valid assessment tool.