1. Statistical power in psychiatric research;Bird;Australian and New Zealand Journal of Psychiatry,1986
2. Statistical power analysis for the behavioral sciences;Cohen,1977
3. Hall, W., & Einfeld, S. (in press). On doing the impossible: Inferring the nonexistence of causal relationships. Australian and New Zealand Journal of Psychiatry.
4. Psychology and brief interventions;Heather;British Journal of Addiction,1989
5. Controlled drinking;Heather,1983