Invariance of Equating Functions Across Different Subgroups of Examinees Taking a Science Achievement Test

Autor:	Deborah J. Harris, Qing Yi, Harcourt Assessment, Xiaohong Gao
Rok vydání:	2008
Předmět:	Composite score Group (mathematics) Item response theory Statistics Equating Mathematics education Achievement test Raw score Psychology (miscellaneous) Academic achievement Social Sciences (miscellaneous) Mathematics Test (assessment)
Zdroj:	Applied Psychological Measurement. 32:62-80
ISSN:	1552-3497 0146-6216
DOI:	10.1177/0146621607311579
Popis:	This study investigated the group invariance of equating results using a science achievement test. Examinees were divided into different subgroups based on the average composite score for test centers, whether they had taken a physics course, and self-reported science grade point average. The reason for dividing examinees into subgroups using such variables is that those variables are more related to performance on a science achievement test than, say, gender. Results indicated that the conversions obtained from different subgroups were similar to the conversions obtained by using the total group, except when the groups were divided based on whether a student had taken a physics course. Where there were differences, the differences were generally 1 equated raw score point.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2a7775a96cb43b4b7915f4e4bd6111ee https://doi.org/10.1177/0146621607311579 Zobrazit plný text záznamu