No abstract

Diagnostic validity of the DAST was assessed using a clinical sample of 501 drug/alcohol patients. Various DAST cut-points were validated against DSM-III drug abuse/dependence criteria, as assessed by the Diagnostic Interview Schedule. The DAST attained 85% overall accuracy in classifying patients according to DSM-III diagnosis. This accuracy was maintained between DAST score cut-points of 5/6 through 9/10. Receiver Operating Characteristic analysis indicated that 5/6 was the optimum threshold score. The DAST was also correlated with demographic variables, psychiatric history, and drug use. The results showed very good concurrent and discriminant validity. This study concluded that fairly accurate estimation of DSM-III drug criteria could be made using a brief self-administered questionnaire (DAST). However, caution must be expressed when generalizing these findings to other contexts (e.g. the justice system) where subjects may have stronger motivation to under-report drug involvement.

Thirty-seven mothers and fathers were observed in their homes interacting with their 2- and 4-year-old-children at Time 1 and 2 years later. Parental mental state talk to children varied as a function of children's age, the context in which talk occurred, and the gender of the parent. Four-year-old children, with an older sibling, produced and heard more cognitive talk and less desire talk than children without an older sibling. Cognitive and feeling talk by family members at Time 1 predicted change in younger children's cognitive and feeling talk (respectively) 2 years later, after controlling for initial levels of younger children's talk and general language ability. Findings are discussed in the context of theory of mind understanding and family talk about the mind.