1. Chaiken, JM, Lawless, ME, & Stevenson, KA: The impact of police activities on crime: Robberies in the New York City subway system. Report No. R-1424-NYC, New York: The Rand Institute, 65, 1974.
2. Costello, A, Edelbrock, C, Kalas, R, Kessler, M, & Klaric, S: Diagnostic interview schedule for children - Child version, 1982.
3. Elley, WB, & Irving, JC: A socio-economic index for New Zealand based on levels of education and income from the 1966 census. New Zealand Journal of Educational Studies, 7:153–67, 1972.
4. ———: Revised socio-economic index for New Zealand. New Zealand Journal of Educational Studies, 11:25–36, 1976.
5. Elliott, DS, Ageton, SS, Huizinga, D, Knowles, BA, & Canter, RJ: The prevalence and incidence of delinquent behavior: 1976–1980. The National Youth Survey Report No. 26. Boulder, CO: Behavioral Research Institute, 1983.