Examining the Qualities of Anchor Items in Rasch Model Test Linking

DOI

10.2991/978-94-6463-494-5_23How to use a DOI?

Keywords

Invariance measurement; Item Anchoring; Test Equating and Test fairness

Abstract

Study of invariance measurement in examining quality of anchor items in Rasch model Test Linking are essential in safeguard test fairness especially in high stake examinations. Rasch model provide sufficiency, invariance, and objectivity in resultant measures (Stenner, 2001). The primary objective of this study was to introduce a framework for schoolteachers, especially teachers in Malaysia to ascertain the relative efficiency of test linking methods in comparing students’ high stake examination measures. This paper proposed the practical implications of score equating by describing aspects of the test linking and item anchoring process which can be used by teachers. This study examined thetwo Principles of Accounting Tests (ZPATx and ZPATy) within a Rasch measurement framework.Are anchor items measure in ZPATx and ZPATy invariance? We should investigate and monitor item parameters value and taking account the measurement error to prove the invariance property by using anchor items through concurrent and separate test equating analysis. Data collection was through stratified random sampling method to two different groups of respondents comprising 429 students each and resulting response data analysed using Winsteps software. Results showed a good fit by using the Non-Equivalent Groups with Anchor Test (NEAT) equating method. Calculation of the different of mean in logit for anchor items measure were used to place both tests form on same scale. Linear equating been chosen as the stronger model for this study for more accurate equating result as suggested by Linacre and Wright (1989). Equating interval scales as stated by Linacre and Wright, when plotted the measures common to the test must follow the identity line stochastically.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Chieng Zouh Fong
PY  - 2024
DA  - 2024/08/22
TI  - Examining the Qualities of Anchor Items in Rasch Model Test Linking
BT  - Proceedings of the Pacific-Rim Objective Measurement Symposium (PROMS 2023)
PB  - Atlantis Press
SP  - 361
EP  - 371
SN  - 2667-128X
UR  - https://doi.org/10.2991/978-94-6463-494-5_23
DO  - 10.2991/978-94-6463-494-5_23
ID  - Fong2024
ER  -