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Validation of Perceived Ability in Statistical concepts Questionnaire (PASQ) Based on Rasch Measurement Model

Ismail, Nor-Zatul Iffa and Mahmud, Zamalia and Abu Kassim , Noor Lide and Said, Zainol (2012) Validation of Perceived Ability in Statistical concepts Questionnaire (PASQ) Based on Rasch Measurement Model. In: International Conference on Statistics in Science, Business and Engineering 2012 (ICSSBE 2012) , 10-12 September 2012, Langkawi, Kedah.

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Abstract

This paper describes the process of assessing the unidimensionality and validity of the Perceived Ability in Statistical Concepts Questionnaire (PASQ) based on the Rasch Measurement Model. Students’ perceived ability was measured by a self-developed 30 PASQ items of Likert-scale format comprises of concepts on types of data (6 items), graphical representations of distributions (8 items), measures of central tendency (8 items), and measures of variability (8 items). The process of assessing the validity of PASQ involved a collection of data from 416 students at four institutions of higher learning in Malaysia where the measurement of construct validity for the overall PASQ and its subscales were established using Winsteps 3.68.2. Various Rasch measurement tools were utilized to demonstrate the true unidimensionality and validity measure of the PASQ and in meeting the needs of the Rasch measurement model. The findings show that the validity and unidimensionality of PASQ can be truly established and can satisfy the characteristics of the Rasch measurement model.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 778/31540 (ISBN: 978-1-4673-1581-4)
Subjects: L Education > LB Theory and practice of education > LB1025 Teaching (principles and practices)
L Education > LB Theory and practice of education > LB2300 Higher Education
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Dentistry
Depositing User: Assoc Prof Dr Noor Lide Abu Kassim
Date Deposited: 02 Oct 2013 10:05
Last Modified: 02 Oct 2013 10:06
URI: http://irep.iium.edu.my/id/eprint/31540

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