Discusses current methodological problems with principal performance appraisal and evaluation methods which have received considerable attention in the literature. Suggests that administrative performance appraisals can be conducted using a measurement technique called generalizability theory (”G” theory). Introduces “G” theory as a method for improving the dependability of principal performance appraisals.
Marcoulides, G.A. and Heck, R.H. (1992), "Assessing Instructional Leadership Effectiveness with “G” Theory", International Journal of Educational Management, Vol. 6 No. 3. https://doi.org/10.1108/09513549210014150
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