Karen is administered a Psychopathy Checklist-Revised PCL-R) and the results indicate a moderate level of psychopathic characteristics. The following week, Karen is again administered the PCL-R. Karen's symptoms remained largely unchanged but the results now indicate a severe level of psychopathic characteristics. This would suggest the PCL-R is ___________.

Question

Quizplus · Accepted Answer

The fact that Karen's symptoms remained largely unchanged but the results on the PCL-R indicated a severe level of psychopathic characteristics suggests that the PCL-R is not reliable. Reliability refers to consistency in measurement, and the inconsistent results in Karen's case call into question the accuracy of the PCL-R as a reliable measure of psychopathy in this individual.

Karen Is Administered a Psychopathy Checklist-Revised PCL-R) and the Results