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ERIC Number: ED518170
Record Type: Non-Journal
Publication Date: 2011-Apr
Pages: 29
Abstractor: As Provided
Reference Count: 37
Treatment of Nonresponse Items on Scale Validation: What "Don't Know" Responses Indicate about College Readiness
Lombardi, Allison; Seburn, Mary; Conley, David
Online Submission, Paper presented at the Annual Meeting of the American Educational Research Association (New Orleans, LA, Apr 8-12, 2011)
In this study, Don't Know/Not Applicable (DK/NA) responses on a measure of academic behaviors associated with college readiness for high school students were treated with: (a) casewise deletion, (b) scale inclusion at the lowest level, and (c) imputation using E/M algorithm. Significant differences in mean responses according to treatment method resulted. Comparisons of survey completers and noncompleters revealed first generation students have a significantly higher number of DK/NA responses. Results indicate a potential external validity threat in treating DK/NA responses with casewise deletion or imputation because noncompleters would be removed or reduced, and the unique needs of first generation students could be overlooked. Findings support scale inclusion at the lowest level as the most appropriate treatment of nonresponse items. (Contains 3 tables and 4 figures.)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: Grade 10; Grade 11; Grade 12; Grade 9; High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: California; Colorado; Connecticut; Oregon