The PSSI-5 (Posttraumatic Stress Disorder Symptom Scale-Interview) is a structured interview for the assessment of symptoms of posttraumatic stress disorder (PTSD) according to the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5). It is a clinician-administered measure that can be used to diagnose PTSD and evaluate treatment outcomes. Scores greater than 20 qualify for PTSD diagnosis.

The PCL-5 (Posttraumatic Stress Disorder Checklist for DSM-5) is a self-report measure for assessing symptoms of posttraumatic stress disorder (PTSD) according to the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5).

It is a 20-item measure that assesses the presence and severity of symptoms associated with PTSD, including re-experiencing, avoidance, negative alterations in cognitions and mood, and alterations in arousal and reactivity.

Each item is rated on a 5-point scale (0 = Not at all to 4 = Extremely), with a total score range of 0-80. Scores greater than 31 qualify for PTSD diagnosis.

The PHQ-9 (Patient Health Questionnaire-9) is a self-report measure for assessing symptoms of major depressive disorder (MDD). It is a 9-item measure that assesses the presence and severity of symptoms associated with MDD, such as depressed mood, loss of interest, and difficulty concentrating. Each item is rated on a 4-point scale (0 = Not at all to 3 = Nearly every day), with a total score range of 0-27.

The GAD-7 (General Anxiety Disorder) Anxiety Severity Scoring

This is calculated by assigning scores of 0, 1, 2, and 3 to the response categories of “not at all,” “several days,” “more than half the days,” and “nearly every day,” respectively.

GAD-7 total score for the seven items ranges from 0 to 21. Scores 5, 10, and 15 represent cut points for mild, moderate, and severe anxiety, respectively.