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The sample consisted of = 637 students ( = 389 girls and = 248 boys), mean age 15.73 (SD = 1.76); 12-20 years. The 4-factor structure was confirmed, as well as measurement invariance for sex and age group. Reliability was acceptable to excellent for all subscales and RADS-2 total scale. Concurrent, convergent and discriminant validity was good. The Swedish version of RADS-2 showed acceptable reliability and validity in a Swedish normative sample. The Swedish version of RADS-2 showed acceptable reliability and validity in a Swedish norma