Self-concept was conceptualized as composed of three first-order facets, each with three second-order facets, with ideal and real aspects: academic self-concept (capability, achievement, and confidence), social self-concept (same-sex peer, opposite-sex peer, and family), and self-concept presentation of self (personal confidence, physical, and honest/trustworthy). Data from a convenience sample of 400 university students were analyzed with the extended logistic model of Rasch. The 45 real items, together with 21 ideal items (66 items), fit the model and formed a scale with valid and reliable (r = .94) scores. The ideal items were all “easier” than their corresponding real items. This supported a multifaceted, hierarchical model of self-concept, with ideal and real aspects making an unequal contribution, as an ordered unidimensional latent trait.
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References
1.
Alfeld-Liro, C. , & Sigelman, C. (1998). Sex differences in self-concept and symptoms of depression during transition to college. Journal of Youth and Adolescence, 27, 219-244.
2.
Andrich, D. (1985). A latent trait model for items with response dependencies: Implications for test construction and analysis. In S. E. Embretson (Ed.), Test design: Developments in psychology and psychometrics (pp. 245-275). Orlando, FL: Academic Press.
3.
Andrich, D. (1988a). A general form of Rasch’s extended logistic model for partial credit scoring. Applied Measurement in Education, 1, 363-378.
4.
Andrich, D. (1988b). Rasch models for measurement. Newbury Park, CA: Sage.
5.
Andrich, D. (1989). Distinctions between assumptions and requirements in measurement in the social sciences. In J. A. Keats, R. Taft, R. A. Heath, & S. H. Lovibond (Eds.), Proceedings of the XXIVth International Congress of Psychology (Vol. 4, pp. 7-16). Mathematical and Theoretical Systems. B.V. North Holland: Elsevier Science.
6.
Andrich, D. , Sheridan, B., Lyne, A., & Luo, G. (1998). RUMM: A Windows-based item analysis program employing Rasch unidimensional measurement models. Perth, Australia: Murdoch University.
7.
Andrich, D. , & van Schoubroeck, L. (1989). The General Health Questionnaire: A psychometric analysis using latent trait theory. Psychological Medicine, 19, 469-485.
8.
Bracken, B. A. (1992). Multidimensional Self Concept Scale. Austin, TX: Pro-Ed.
9.
Bracken, B. A. (Ed.). (1996). Handbook of self-concept: Development, social and clinical considerations. New York: John Wiley.
10.
Bryne, B. M. (1984). The general academic self-concept nomological network: A review of construct validation research. Review of Educational Research, 54, 427-456.
11.
Divgi, D. R. (1986). Does the Rasch model really work for multiple choice items? Not if you look closely. Journal of Educational Measurement, 23, 283-298.
12.
Gari, A. , & Kalantzi-Azizzi, A. (1998). The influence of traditional values of education on Greek students’ real and ideal self-concepts. Journal of Social Psychology, 138, 5-12.
13.
Goldstein, H. (1980). Dimensionality, bias, independence and measurement scale problems in latent trait test score models. British Journal of Mathematical and Statistical Psychology, 33, 234-246.
14.
Harter, S. (1999). The construction of self: A developmental perspective. New York: Guilford.
15.
Hattie, J. (1992). Self-concept. Hillsdale, NJ: Lawrence Erlbaum.
16.
Marsh, H. W. (1988). The Self Description Questionnaire (SDQ):A theoretical and empirical basis for the measurement of multiple dimensions of preadolescent self-concept: A test manual and a research monograph. San Antonio, TX: Psychological Corporation.
17.
Marsh, H. W. (1990). A multidimensional, hierarchical self-concept: Theoretical and empirical justification. Educational Psychology Review, 2, 77-172.
18.
Marsh, H. W. (1992a). Self-Description Questionnaire I: A theoretical and empirical basis for the measurement of multiple dimensions of preadolescent self-concept—A test manual and research monograph. Macarthur, NSW, Australia: University of Western Sydney.
19.
Marsh, H. W. (1992b). Self-Description Questionnaire II: A theoretical and empirical basis for the measurement of multiple dimensions of adolescent self-concept—A test manual and research monograph. Macarthur, NSW, Australia: University of Western Sydney.
20.
Marsh, H. W. (1992c). Self-Description Questionnaire III: A theoretical and empirical basis for the measurement of multiple dimensions of late adolescent self-concept—A test manual and research monograph. Macarthur, NSW, Australia: University of Western Sydney.
21.
Marsh, H. W. (1993). The multidimensional structure of academic self-concept: Invariance over gender and age. American Educational Research Journal, 30, 841-860.
22.
Marsh, H. W. (1994). Using the national longitudinal study of 1988 to evaluate theoretical models of self-concept: The Self-Description Questionnaire. Journal of Educational Psychology, 86, 439-456.
23.
Marsh, H. W. , & Hattie, J. (1996). Theoretical perspectives on the structure of self-concept. In B. A. Bracken (Ed.), Handbook of self-concept: Developmental, social and clinical considerations (pp. 38-90). New York: John Wiley.
24.
Marsh, H. W. , & O’Neill, R. (1984). Self Description Questionnaire III (SDQ III): The construct validity of multidimensional self-concept ratings by late-adolescents. Journal of Educational Measurement, 21, 153-174.
25.
Marsh, H. W. , & Shavelson, R. J. (1985). Self-concept: Its multifaceted hierarchical structure. Educational Psychologist, 20, 107-125.
26.
Marsh, H. W. , & Yeung, A. S. (1997). Causal effects of academic self-concept on academic achievement: Structural equation models of longitudinal data. Journal of Educational Psychology, 89, 41-54.
27.
Rasch, G. (1960/1980). Probabilistic models for intelligence and attainment tests (expanded ed.). Chicago: University of Chicago Press.
28.
Shavelson, R. J. , Hubner, J. J., & Stanton, G. C. (1976). Self-concept: Validation of construct interpretations. Review of Educational Research, 46, 407-441.
29.
Traub, R. E. (1983). A priori considerations in choosing an item response model. In R. K. Hambelton (Ed.), Applications of item response theory (pp. 57-70). New York: Pergamon.
30.
Waugh, R. (1998). The Course Experience Questionnaire: A Rasch measurement model analysis. Higher Education Research and Development, 17, 45-64.
31.
Waugh, R. (1999). Approaches to studying for students in higher education: A Rasch measurement model analysis. British Journal of Educational Psychology, 69, 63-79.
32.
Wright, B. , & Masters, G. (1981). The measurement of knowledge and attitude (Research Memorandum No. 30). Chicago: Statistical Laboratory, Department of Education, University of Chicago.
33.
Wright, B. , & Masters, G. (1982). Rating scale analysis: Rasch measurement. Chicago: MESA.
34.
Wylie, R. C. (1974). The self-concept: A review of methodological considerations and measuring instruments. Lincoln: University of Nebraska Press.
35.
Wylie, R. C. (1979). The self-concept. Lincoln: University of Nebraska Press.
