Attitude Towards Persons with Intellectual Disability Scale: Further Development

The purpose of this study is to revise and further develop an attitude towards person with intellectual disability scale (APIDs). The further development of this scale was mainly based on Community Living Attitude Scale (CLAS) and Attitude towards Intellectual Disability Questionnaire (ATTID). The study examined the psychometric properties of the proposed measuring instrument in terms of its factorial validity and internal consistency reliability. The confirmatory factor analysis showed that the proposed five-factor model did not fit the data well. Exploratory factorial analysis was then conducted to re-examine the structure. The results suggested a three-factor structure, i.e. sociality, capacity, and protection. The internal consistency reliability was good for sociality and capacity but needs further improvement for protection. The cultural and social landscape within a population affects the factorial structure an attitude scale. The use of APIDs was also discussed.