The RADS-2 is a brief, 30-item self-report measure that includes subscales which evaluate the current level of an adolescent's depressive symptomatology along four basic dimensions of depression: Dysphoric Mood, Anhedonia/Negative Affect, Negative Self-Evaluation, and Somatic Complaints. Interpretation of these four subscales is based on both the nature of the depression domain and the item content of the subscale.
The RADS-2 standard (T) scores and associated clinical cutoff score provide the clinician or researcher with an indication of the clinical severity of the individual's depressive symptoms (normal, mild, moderate, or severe). Scores are plotted on a Summary/Profile Form, allowing comparison of elevations across subscales. Examining item endorsement levels within elevated subscales can provide further information about the nature of an adolescent's reported symptomatology.
In addition to the four subscale scores, the RADS-2 yields a Depression Total score that represents the overall severity of depressive symptomatology. An empirically derived clinical cutoff score helps to identify adolescents who may be at risk for a depressive disorder or a related disorder. Data demonstrate the ability of this cutoff score to discriminate between adolescents with Major Depressive Disorder and an age- and gender-matched control group. The six RADS-2 critical items are those that have been identified as being most predictive of a depressive disorder diagnosis.
The RADS-2 Includes the Following New Features:
- Restandardised with a new school-based sample of 3,300 adolescents that was stratified to reflect the 2000 U.S. Census data for gender and ethnicity.
- Expanded age range includes individuals ages 11-20 years.
- Four factorially derived subscales reflect four basic domains of adolescent depression.
- Updated normative tables provide standard (T) scores in addition to percentile ranks for the Depression Total scale and four subscales.
- New Professional Manual provides a comprehensive literature review.
- Case studies illustrate expanded interpretation of subscale and Depression Total scale scores.
- Carbonless, hand-scorable Test Booklet facilitates scoring and interpretation.
RADS-2 materials consist of the Professional Manual; a carbonless, hand-scorable Test Booklet; and the Summary/Profile Form. The RADS-2 items are written at a 3rd-grade reading level and are worded in the present tense to elicit current symptom status. Symptom content is consistent with a wide range of expert systems and sources (e.g., DSM-IV, ICD-10).