Item characteristics analysis of attitudes towards smoking scale by log-linear models and T test


Kelecioglu H.

SOCIAL BEHAVIOR AND PERSONALITY, vol.34, no.7, pp.853-863, 2006 (SSCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 7
  • Publication Date: 2006
  • Doi Number: 10.2224/sbp.2006.34.7.853
  • Journal Name: SOCIAL BEHAVIOR AND PERSONALITY
  • Journal Indexes: Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.853-863
  • Hacettepe University Affiliated: Yes

Abstract

A Likert-type scale was used in analysis of the Attitudes Towards Smoking Scale (Tezbasaran & Kelecioglu, 2004) of item characteristics investigated by hierarchical log-linear models and t test. Differential item functioning according to gender and item discriminations was determined by using hierarchical log-linear models. A total of 16 items which were high item discriminate and not gender DEF were identified. Alpha coefficent was found to be 0.91. Scale items were also analyzed by t test and another 16 were obtained. This scale's Cronbach alpha coefficent was found to be 0.93. No significant difference between these two Cronbach alpha coefficients was found by using Fischer's z test. Eight items which were detected as gender DEF in log-linear models were obtained according to the t test scale.