Associations with sex, age, ethnicity, and type of school. American Journal of Drug and Alcohol Abuse, 13, 413–433. Article PubMed CAS Google Scholar Nunnally, J. C. (1978). Psychometric theory. New York: McGraw-Hill. O’Callaghan, F. V., Callan, V. J., & Baglioni, A. (1999...