ERIC Number: EJ435192
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
A Comparison of Angoff's Design I and Design II for Vertical Equating Using Traditional and IRT Methodology.
Harris, Deborah J.
Journal of Educational Measurement, v28 n3 p221-35 Fall 1991
Two data collection designs, counterbalanced and spiraling (Angoff's Design I and Angoff's Design II) were compared using item response theory and equipercentile equating methodology in the vertical equating of 2 mathematics achievement tests using 1,000 eleventh graders and 1,000 twelfth graders. The greater stability of Design II is discussed. (SLD)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A