1. Andreoli KG. & Musser L.A. Ü986X Faculty productivity. In H.H. Werley J.J. Fitzpatrick & R-L. lìmnton (Eds.) Annual review of nursing research (pp. 177-193). New York: Springer.
2. Boyd L.H. & !versen G.R. (1979). Contextual analysis: Concepts and statistical techniques. Belmont CA: Wadsworth.
3. Burstein L. (198Oa). The analysis of multilevel data in educational research and evaluation. Review of Research in Education 8 158-231.
4. Burstein L. (198Ob). The role of levels of analysis in specification of education effects. In Dreeben R. & Thomas J-A (Eds.) The analysis of educational productivity Volume I: Issues in microanalysis (pp. 119-191). Cambridge MA: Ballinger.
5. Capell FJ. (1979 April). Interpreting multilevel data from program evaluations. Paper presented at the annual meeting of American Educational Research Association San Francisco.