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Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model

The objective of this paper is to investigate the consistency of item selection and the existence of unidimensionality within each construct of the Student-Parent Actions Model (SPA) measurement scale using item response theory (Rasch measurement model). Based on Rasch model, which uses the WINST...

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Main Authors: Koh, William Siaw Yen, Ong , Saw Lan
Format: Article
Language:English
Published: Penerbit Universiti Sains Malaysia 2012
Subjects:
LB2300 Higher Education
Online Access:http://eprints.usm.my/34606/1/apjee27_2012_ART_8_%28119-138%29.pdf
http://eprints.usm.my/34606/
http://apjee.usm.my/APJEE_27_2012/apjee27_2012_ART%208%20(119-138).pdf
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spelling my.usm.eprints.34606 http://eprints.usm.my/34606/ Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model Koh, William Siaw Yen Ong , Saw Lan LB2300 Higher Education The objective of this paper is to investigate the consistency of item selection and the existence of unidimensionality within each construct of the Student-Parent Actions Model (SPA) measurement scale using item response theory (Rasch measurement model). Based on Rasch model, which uses the WINSTEPS program, 373 students' responses were analysed. The sample group, which had a mean age of 16.41 years, was selected from five secondary schools through convenience sampling. The initial 62 items of SPA were analysed within the eight 'a priori' hypothesised dimensions. Rasch's misfit statistics were used to eliminate items that violated the infit and outfit MNSQ criteria of being between 0.70 and 1.30. In combination with the first principal component analysis of standardised residual (PCAR), Rasch's fit statistics were used to analyse unidimensionality within each individual construct. From the Rasch analysis results, 35 items were selected. In total, 27 items were similar to the SPA selected through structural equation modelling (SEM) analysis. All eight constructs exhibited unidimensionality, as PCAR analysis showed explained variances ranging from 47.10% to 73.6% for each individual construct. However, the eigenvalues of unexplained variances in the first contrast were all less than 3.0 indicating unidimensionality within each construct. Overall, SPA exhibited high consistency in the selection of items between the Rasch and SEM methods. When compared to the original SPA, the high percentage of similarity (approximately 80%) for the selected items indicated item selection stability for SPA across the two methods. Multidimensionality for the instrument was also detected. Penerbit Universiti Sains Malaysia 2012 Article PeerReviewed application/pdf en http://eprints.usm.my/34606/1/apjee27_2012_ART_8_%28119-138%29.pdf Koh, William Siaw Yen and Ong , Saw Lan (2012) Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model. The Asia Pacific Journal of Educators and Education (formerly known as Journal of Educators and Education), 27 (1). pp. 1-20. ISSN 2289-9057 http://apjee.usm.my/APJEE_27_2012/apjee27_2012_ART%208%20(119-138).pdf
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic LB2300 Higher Education
spellingShingle LB2300 Higher Education
Koh, William Siaw Yen
Ong , Saw Lan
Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
description The objective of this paper is to investigate the consistency of item selection and the existence of unidimensionality within each construct of the Student-Parent Actions Model (SPA) measurement scale using item response theory (Rasch measurement model). Based on Rasch model, which uses the WINSTEPS program, 373 students' responses were analysed. The sample group, which had a mean age of 16.41 years, was selected from five secondary schools through convenience sampling. The initial 62 items of SPA were analysed within the eight 'a priori' hypothesised dimensions. Rasch's misfit statistics were used to eliminate items that violated the infit and outfit MNSQ criteria of being between 0.70 and 1.30. In combination with the first principal component analysis of standardised residual (PCAR), Rasch's fit statistics were used to analyse unidimensionality within each individual construct. From the Rasch analysis results, 35 items were selected. In total, 27 items were similar to the SPA selected through structural equation modelling (SEM) analysis. All eight constructs exhibited unidimensionality, as PCAR analysis showed explained variances ranging from 47.10% to 73.6% for each individual construct. However, the eigenvalues of unexplained variances in the first contrast were all less than 3.0 indicating unidimensionality within each construct. Overall, SPA exhibited high consistency in the selection of items between the Rasch and SEM methods. When compared to the original SPA, the high percentage of similarity (approximately 80%) for the selected items indicated item selection stability for SPA across the two methods. Multidimensionality for the instrument was also detected.
format Article
author Koh, William Siaw Yen
Ong , Saw Lan
author_facet Koh, William Siaw Yen
Ong , Saw Lan
author_sort Koh, William Siaw Yen
title Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
title_short Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
title_full Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
title_fullStr Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
title_full_unstemmed Validating Student-Parent Actions Model (Spa) Of Consistency Using The Rasch Measurement Model
title_sort validating student-parent actions model (spa) of consistency using the rasch measurement model
publisher Penerbit Universiti Sains Malaysia
publishDate 2012
url http://eprints.usm.my/34606/1/apjee27_2012_ART_8_%28119-138%29.pdf
http://eprints.usm.my/34606/
http://apjee.usm.my/APJEE_27_2012/apjee27_2012_ART%208%20(119-138).pdf
_version_ 1643708256048119808
score 13.211869

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