1. Campbell, D.T., & Erlebacher, A.E. (1970). How regression artifacts in quasi-experimental evaluations can mistakenly make compensatory education look harmful. In J. Hellmuth (ed.), Compensatory education: A national debate. Vol. 3: Disadvantaged child). New York: Brunner/Mazel. Reprinted in E.L. Struening and M. Guttentag (eds.), Handbook of Evaluation Research, Vol. 1, 1975. Sage: Newbury Park, pp. 597–617.
2. Conolley, E.S., & Knight, G.P. (1976). Anderson’s personality trait words: Has their likableness changed? Personality and Social Psychology Bulletin, 2, 300–307.
3. Furby, L. (1973). Interpreting regression toward the mean in developmental research. Developmental Psychology, 8, 172–179.
4. Hunter, W.J., & Horwitz, S. (1977). Regression: That’s mean. CEDR Quarterly, 10, 18–19.
5. Mark, M.M. (1986). Validity typologies and the logic and practice of quasi-experimentation. New Directions in Program Evaluation, 31, 47–66.