1979). Quasi-experimentation: Design and analysis for field settings. Chicago, ILL: Rand McNally. & (
Cook, T. D. & Campbell, D. T. (1983). The design and conduct of quasi-experiments and true experiments in field settings. In (ed.), Handbook of industrial and organizational psychology (pp. 223–326). New York: John Wiley & Sons.
2003). Research design – qualitative, quantitative and mixed method approaches (2nd ed.). Thousand Oaks, CA: Sage Publications. (
Fife-Schaw, C. (2000). Quasi-experimental designs. In , , & (eds.), Research methods in psychology (2nd ed.) (pp. 75–87). London: Sage Publications.
1993). Research methods. New York: HarperCollins. & (
Raulin, M. L. & Graziano, A. M. (1995). Quasi-experiments and correlational studies. In (ed.), Psychological research methods and statistics (pp. 58–77). London: Longman.
1992). Research methods for business: A skill-building approach. New York: John Wiley & Sons. (
2002). Experimental and quasi-experimental designs for generalized causal inference. New York: Houghton Mifflin., , & (
1995). The impact of a developmental performance appraisal program on employee perceptions in an Australian agency. Group and Organization Management, 20, 245–271. (
1990). The effect of a supervisory development program on leadership style. Journal of Business and Psychology, 4, 365–373. & (