The Factorial Validity of a Rating Scale for the Evaluation of Research Articles

Adams, G. S. , Collett, D. M. , Michael, W. B. , Ryans, D. G. , Shay, C. , and Wandt, E. The quality of educational research. Educational Researcher, 1967, 18, 6.

Kaiser, H. F. The application of electronic computers to factor analysis. EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, 1960, 20, 141-151.

Wandt, E. , Adams, G. S. , Collett, D. M. , Michael, W. B. , Ryans, D. G. , and Shay, C. An evaluation of educational research published in journals: report of the committee on evaluation of research , Washington, D. C.: American Educational Research Association, 1967.