ERIC Number: EJ772152
Record Type: Journal
Publication Date: 2007
Reference Count: N/A
Identifying Possible Sources of Differential Functioning Using Differential Bundle Functioning with Polytomously Scored Data
McCarty, F. A.; Oshima, T. C.; Raju, Nambury S.
Applied Measurement in Education, v20 n2 p205-225 2007
Oshima, Raju, Flowers, and Slinde (1998) described procedures for identifying sources of differential functioning for dichotomous data using differential bundle functioning (DBF) derived from the differential functioning of items and test (DFIT) framework (Raju, van der Linden, & Fleer, 1995). The purpose of this study was to extend the procedures for dichotomous DBF to the polytomous case and to illustrate how DBF analysis can be conducted with polytomous scoring, common to psychological and educational rating scales. The data set used was parent and teacher ratings of child problem behaviors. Three group contrasts (teacher vs. parent, boy vs. girl, and random groups) and two bundle organizing principles (subscale designation and random selection) were used for the DBF analysis. Interpretations of bundle indexes in the context of child problem behaviors were presented.
Descriptors: Rating Scales, Test Bias, Scoring, Test Items, Data Analysis, Psychological Studies, Educational Testing, Student Behavior, Comparative Analysis, Gender Differences, Teacher Attitudes, Parent Attitudes, Behavior Problems
Lawrence Erlbaum. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals/default.html
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A