Validity in program evaluation: A comparative approach.

Validity in program evaluation: A comparative approach. Begining from a con ceptual analysis of program evaluation validity, this paper introduces a co mparative study of implications and interrrelationships of different statis tical techniques in order to enhance validity in program evaluation. Genera lizability theory, hierarquical linear analysis and structural equation mod eling are applied to an evaluation of a training program of administrative staff in University of Sevilla.