A short questionnaire to evaluate the effectiveness of tutors in PBL: validity and reliability

BOOMSMA A., 2001, The robustness of LISREL modeling revisited

CI-EN F., 2001, causes, consequences, and strategies, Sociological Methods & Research, 29, pp. 468

FAN X., 2001, Educational & Psychological Measurement, 61, pp. 517

Hu L., 1999, conventional criteria versus new alternatives, Structural Equation Modeling, 6, pp. 1, 10.1080/10705519909540118

MARSH H.W, 1987, research findings, methodological issues, and directions for future research, International Journal of Educational Research, 11, pp. 253

MARSH H.W, 1991, a test of alternative higher-order structures, Journal of Educational Psychology, 62, pp. 17