Understanding Norms in Psychological Testing
As a therapist, you’ve likely encountered cut-offs in various psychological assessments, such as the widely-used PHQ-9 Depression Severity scale. The PHQ-9 assigns scores of 0, 1, 2, and 3 to the response categories: “not at all,” “several days,” “more than half the days,” and “nearly every day,” respectively. This results in a total score ranging …