The main purpose of this research is to computerize GSP chart and Rasch GSP methods. GSP chart and Rasch GSP are effective and useful methods which used for analyzing and evaluating academic achievement. GSP chart provides information for diagnosing the learning status of students and the quality of questions while Rasch GSP provides information for assessing the quality of classes and test qua...

A recent paper by Lundgren-Nilsson & Tennant (1) and accompanying commentary (2) reviewed the development of Rasch analysis in rehabilitation. The authors of the two papers acknowledge the advances that have been made in terms of analysis. However, they did not highlight an important issue with regards to the use of Rasch measures once developed. We believe this is a fundamental issue that need...

The psychometric properties of the Refractive Status and Vision Profile (RSVP) questionnaire were evaluated using Rasch analysis. Ninety-one myopic patients from a refractive surgery clinic and general optometric practice completed the RSVP. Rasch analysis of the RSVP ordinal data was performed to examine for unidimensionality and item reduction. The traditional Likert-scoring system was compar...

  Background: Quality of life evaluates the general well-being of individuals and it can be considered as one of the important aspects in programming and giving service to disabled people. Blindness is one of the most important kinds of physical disability that has a direct effect on quality of life, so t his study aimed to explore how war blindness influences the quality of life .   Methods: I...

PURPOSE We compare two methods of analysis for Rasch scoring pre- to postintervention data: Rasch lookup table versus de novo stacked Rasch analysis using the Adult Strabismus-20 (AS-20). METHODS One hundred forty-seven subjects completed the AS-20 questionnaire prior to surgery and 6 weeks postoperatively. Subjects were classified 6 weeks postoperatively as "success," "partial success," or "...

Certain criticisms of the use of the Rasch model have been queried in a paper by Bryce. We argue that these criticisms not only remain valid, but are reinforced by recent research on latent trait models. In particular, Bryce fails to present a clear conceptual argument and adopts a very inefficient procedure for testing empirically the fit of the Rasch model. A paper by Bryce (1981) takes issue...