ERIC Number: ED228324
Record Type: Non-Journal
Publication Date: 1983-Apr-14
Reference Count: N/A
Measuring Change with the Rating Scale Model.
Ludlow, Larry H.; And Others
The Rehabilitation Research and Development Laboratory at the United States Veterans Administration Hines Hospital is engaged in a long-term evaluation of blind rehabilitation. One aspect of the evaluation project focuses on the measurement of attitudes toward blindness. Our aim is to measure changes in attitudes toward blindness from pre-training, to post-training, and then to a six month follow-up. The Attitude Toward Blindness Questionnaire consists of 39 statements scored as Strongly Agree:3, Agree:2, Disagree:1, Strongly Disagree:0. The Rating Scale Rasch model for ordered response categories was used to explain these data. The three periods were first calibrated as a single set, the residuals were analyzed, peculiar items were identified and removed. The analysis of change consisted of a calibration of items and persons at the separate time periods and the plotting of person attitude measures at each period. This paper demonstrates that: (1) detailed residual analyses can reveal critical measurement interaction processes, (2) measurement of change using the Rating Scale model is feasible, and (3) blind rehabilitation effects on attitudes can be studied quantitatively. (Author)
Publication Type: Speeches/Meeting Papers; Reports - Research
Education Level: N/A
Authoring Institution: Veterans Administration Hospital, Hines, IL. Rehabilitation Research and Development Lab.