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Studied the effects of item grouping on local independence and item invariance, the characteristics of items scaled under the Rasch model that make them sample-free. Data were 107 responses to a survey of teachers' opinions about the Ontario grade 9 literacy test. Although effects of grouping and item phrasing on invariance were found, results generally support the use of grouping of items to provide a higher power separation. (SLD)

Examines the effectiveness of a conflict-resolution program in raising the academic achievement of a suburban Canadian high school English class. Argues that the conflict-resolution training raised academic performance at the same time that it taught conflict-resolution techniques. Suggests incorporating conflict-resolution training into core high school courses. (DSK)