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ERIC Number: ED380476
Record Type: Non-Journal
Publication Date: 1994-Oct
Pages: 34
Abstractor: N/A
Reference Count: N/A
Rasch Factor Analysis.
Wright, Benjamin D.
Factor analysis and Rasch measurement are compared, showing how they address the same data with different interpretations of numerical status. Both methods use the same estimation method, with different measurement models, and they solve the same problem, with different utility. Factor analysis is faulted for mistaking stochastic observations of ordered labels as established linear measures and for failing to construct linear measurement. Using the Rasch measurement to replace factor analysis is developed for a dichotomy and shown for a rating scale example using responses of 2,049 Chicago (Illinois) public school teachers on the 13-item "Strength of Principal Leadership Scale" rating scale. Includes 11 figures. (Contains 18 references.) (Author/SLD)
Publication Type: Reports - Evaluative; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A