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2798 – Differential Item Functioning of the Chinese Version of the Somatosensory Amplification Scale Among Adolescents Across Grade Levels

Published online by Cambridge University Press:  15 April 2020

B.K.H. Tam  and
W.S. Wong
B.K.H. Tam
Affiliation:
Research Department of Clinical Educational & Health Psychology, University College London, London, UK
W.S. Wong
Affiliation:
Department of Psychological Studies, Hong Kong Institute of Education, Hong Kong, Hong Kong S.A.R

Abstract

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Introduction:

Tam et al. (2011)[1] recently reported the invariance of the one-factor model of the Chinese version of the Somatosensory Amplification Scale (ChSAS). The objective of this paper is to further examine the item-level equivalence of the ChSAS in a sample of Chinese adolescents across grade levels.

Methods:

The ChSAS was administered to 500 Chinese adolescents. Differential item functioning (DIF) analysis was performed to identify any uniform and non-uniform differences on the 10 ChSAS items among adolescents across different grade levels.

Results:

After a Bonferroni adjustment of p value (=0.0007, i.e., 0.05/70), results of DIF analyses showed that there is no uniform (all Fs ranging from 0.17–2.15, ps > 0.09) or non-uniform (all Fs ranging from 0.47–1.76, ps > 0.02) difference on the 10 ChSAS items.

Conclusions:

The four different grade level groups used the scale comparably, without showing any difference on item properties. These findings further substantiate the use of ChSAS as a valid and reliable instrument among adolescents across grade levels.

Type
Abstract
Information
European Psychiatry , Volume 28 , Issue S1: Abstracts of the 21th European Congress of Psychiatry , 2013 , 28-E1674
Copyright
Copyright © European Psychiatric Association 2013

References

Reference:

Tam, B.K.H., Wong, W.S. Confirmatory Factor Analysis and Sample Invariance of The Chinese Version of Somatosensory Amplification Scale (chsas) Among Chinese Adolescents. Paper presented at the 12th European Congress of Psychology Istanbul, Turkey2011 2011Google Scholar
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