Naslov
The Rasch Model - Based Analysis of the Conceptual Survey of Electricity and Magnetism

Autori
Planinić, Maja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Modelling in physics and physics education / Van den Berg, Ed ; van den Berg, Daday ; Ellermeijer, Ton - Amsterdam : Amstel Institute, University of Amsterdam, 2006

Skup
GIREP conference 2006: Modelling in Physics and Physics Education

Mjesto i datum
Amsterdam, Nizozemska, 20.08.2006. - 25.08.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rasch model; electricity; magnetism

Sažetak
The Conceptual Survey of Electricity and Magnetism (CSEM) is a well known assessment instrument designed to assess students' knowledge of electricity and magnetism, and diagnose difficulties that students have in this domain. CSEM was administered to a sample of Croatian students at University of Zagreb, and the data obtained were analyzed with the Rasch model. In the stochastic Rasch model the interaction of persons and test items is modelled as the probability of persons' success on an item, which depends only on item difficulty and person ability. The Rasch model enables calculation of linear measures for item difficulties and person abilities, which - together with the analysis of their fit to the model - provide important insight in the functioning of the test. The functioning of the CSEM is discussed on the basis of that analysis. The fit analysis revealed problematic functioning of some items (especially item 14), and the analysis of item difficulties suggested important differences in the difficulties of conceptual areas covered by CSEM.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Pedagogija

POVEZANOST RADA