作者: Miguel Escurra Mayaute , Edwin Salas Blas
DOI:
关键词: Validity 、 Statistics 、 Psychology 、 Social psychology 、 Content validity 、 Exploratory factor analysis 、 Addiction 、 Polychoric correlation 、 Scale (social sciences) 、 Correlation 、 Item response theory
摘要: The purpose of this study was to design, construct, and validate Social Network Addiction Questionnaire (ARS) by applying the Item Response Theory (ITR) for politomic graded response items. At first, items were designed according DSM-IV criteria substance addiction adapted construct under study. content validity these evaluated a judges' panel. initial version 31 applied 380 college students from different universities in city Lima. latent structure analyzed using an exploratory factor analysis on polychoric correlation matrix between all Results showed three dimensions that independently. Parameter estimation models conducted marginal maximum likelihood method. Based results, eight excluded due its low item-total correlation. localization parameters medium high levels scale. discrimination adopted moderate values. information functions are more precise discriminate individuals with trait. also adequate psychometric properties reliability scale components.