Sample 1 derivation.
Sample 1 was used to drive the optimal rules (using the criterion of concurrent validity) for computing the SROM index. The final sample for this purpose consistrd of 50 male and female subjects ranging in age from 11 to 22 years. Cartain statistics, such as correlations with age and SES, also included five preadult subjects who had only provided useble time 1 SROM questionnaire.The sample at all age levels was predominantly middle class