A Second-Order Longitudinal Model for Binary Outcomes: Item Response Theory Versus Structural Equation Modeling

Measuring academic growth, or change in aptitude, relies on longitudinal data collected across multiple measurements. The National Educational Longitudinal Study (NELS:88) is among the earliest, large-scale, educational surveys tracking students’ performance on cognitive batteries over 3 years. Notable features of the NELS:88 data set, and of almost all repeated measures educational assessments, are (a) the outcome variables are binary or at least categorical in nature; and (b) a set of different items is given at each measurement occasion with a few anchor items to fix the measurement scale. This study focuses on the challenges related to specifying and fitting a second-order longitudinal model for binary outcomes, within both the item response theory and structural equation modeling frameworks. The distinctions between and commonalities shared between these two frameworks are discussed. A real data analysis using the NELS:88 data set is presented for illustration purposes.     

Mathematik — ein polarisierendes Schulfach

Zusammenfassung Mathematik ist ein polarisierendes Fach, ein Fach, das entweder geliebt oder abgelehnt wird. Der Beitrag fragt nach den Ursachen für eine derartige Polarisierung und beschreibt dabei die Stellung des Fachs Mathematik in der Schule. In einem ersten Teil werden unter Bezug auf die historische Entwicklung des Faches Mathematik die Zielsetzungen des Mathematikunterrichts beschrieben. Dabei wird deutlich, dass im Mathematikunterricht über die historische Entwicklung hinweg für die gymnasiale Bildung st?rker formale Ziele von Mathematik als Geistesbildung formuliert wurden, w?hrend für die Volks-und Realschulbildung st?rker materiale Bildung der Bef?higung zur Umweltbew?ltigung gefordert wurden. In einem zweiten Teil werden Probleme und Defizite des Mathematikunterrichts beschrieben wie die Dominanz von Regeln und Kalkülen und die einseitige Orientierung an einer deduktiv aufgebauten Fachsystematik. In einem dritten Teil werden Konsequenzen und Ma?nahmen zur Behebung der Defizite vorgeschlagen wie die Orientierung an fundamentalen Ideen. Auf der Ebene der Lehr-Lern-Formen wird die Bedeutung produktiver Lernumgebungen hervorgehoben sowie die St?rkung von Eigenaktivit?ten und offenen Fragestellungen gefordert.

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Summary Mathematics — a polarizing subject. Mathematics is a polarizing subject, a subject either beloved or condemned. This contribution asks for the reasons for such polarization and, at the same time describes the position of Mathematics as a school subject. In the first part, the aims of mathematics teaching are described in relation with the historical development of mathematics. It becomes obvious that beyond its historical development mathematics teaching at the Gymnasium (higher type secondary school) was laying stronger emphasis on formal goals of mathematics such as the cultivation of the mind, while at the Volksschule (lower type secondary school) and Realschule (intermediate type secondary school) goals related to the ability of mastering daily life were more strongly demanded. In the second part problems and deficits of mathematics teaching are described, such as the prevailing dominance of rules and calculations and the unilateral orientation towards a deductively constructed systematics of the subject. In the third part consequences and measures for remedying the deficits are suggested, for example an orientation on fundamental ideas. At the level of teaching-and-learning-modes productive learning surroundings are demanded and the support of individually initiated activities and open problems is stressed.

     

Communications Regulation

Copyright Primer, by Harry G. Henn (1979, 785 pp.—$40.00, hardbound)

Current Developments in Copyright Law 1979 (Course Handbook 101, 1979, 721 pp. —$20.00, paper)

Copyright Primer for Film and Video (Northwest Media Project, P.O. Box 4093, Portland, Ore. 97208—$2.00, paper)     

Law and Regulation

THE ELECTRONIC MEDIA AND THE TRANSFORMATION OF LAW by M. Ethan Katsh (New York: Oxford University Press, 1989—$38.00, ISBN 0-19-504590-4)

COPYRIGHT LAW: A PRACTITIONER'S GUIDE and 1989 SUPPLEMENT by Harry G. Henn (Practising Law Institute, 810 Seventh Ave, New York, NY 10019—$85.00 for both, ISBN not provided)

USING COPYRIGHTED VIDEOCASSETTES IN CLASSROOMS, LIBRARIES, AND TRAINING CENTERS by Jerome K. Miller (1988,2nd ed.—$19.95, ISBN 0-914143-14-X)

A COPYRIGHT PRIMER FOR EDUCATIONAL AND INDUSTRIAL MEDIA PRODUCERS by Esther Sinofsky (1988—$29.95, ISBN 0-914143-12-3)

VIDEO COPYRIGHT PERMISSIONS: A GUIDE TO SECURING PERMISSION TO RETAIN, PERFORM, AND TRANSMIT TELEVISION PROGRAMS VIDEOTAPED OFF THE AIR by Jerome K. Miller and others (1989—price not given, ISBN 0-914143-13-1)

PRIVATE RIGHTS, PUBLIC WRONGS: THE COMPUTER AND PERSONAL PRIVACY by Michael Rogers Rubin (Norwood, NJ: Ablex, 1988—$32.50, ISBN 0-89391-518-1)

SUBJECTS IN PHOTOGRAPHS, FILM AND TELEVISION edited by Larry Gross, John Stuart Katz, and Jay Ruby (New York: Oxford University Press, 1988—$29.95, ISBN 0- 19-505433-4)

COMPENSATING CREATORS OF INTELLECTUAL PROPERTY: COLLECTIVES THAT COLLECT by Stanley M. Besen and Sheila Nataraj Kirby (Rand Corporation, 1700 Main St., PO Box 2138, Santa Monica, CA 90406—price not given, paper, ISBN 0-8330-0967-2)