ERIC Number: EJ852820
Record Type: Journal
Publication Date: 2009-Oct
Pages: 20
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1042-1629
EISSN: N/A
Item Validation of Online Postsecondary Courses: Rating the Proximity between Similarity and Dissimilarity among Item Pairs (Validation Study Series I: Multidimensional Scaling)
Seok, Soonhwa
Educational Technology Research and Development, v57 n5 p665-684 Oct 2009
The purpose of this study was to identify and validate items applicable to evaluating online courses at the postsecondary level. Items were derived from a review of the literature. Four judges rated the similarity of the items by making pair-wise comparisons utilizing multidimensional scaling (MDS). The study consisted of five stages. Stage I involved identifying items. Stage II involved validating items. Stage III involved sampling. Stage IV involved developing an online MDS instrument accommodating the 4,851 ([99 * 98]/2) pair-wise comparisons and rating them. Stage V involved data collection and analysis. The results of the MDS study indicated a three-dimensional solution (Accessibility, Adaptability, and Clarity of Communication) as the appropriate model for analysis. The three-dimensional solution indicated 0.24222 for the fit values of STRESS and 0.74 for R-squared. Four clusters were identified as Contextual Accommodation, Instructional Access, Guided Learning, and Organizational Clarity.
Descriptors: Online Courses, Multidimensional Scaling, Course Evaluation, Test Items, Test Validity, Models, Test Construction, Educational Technology, Computer Assisted Instruction, Electronic Learning, Web Based Instruction, Postsecondary Education, Evaluation Criteria
Springer. 233 Spring Street, New York, NY 10013. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-348-4505; e-mail: service-ny@springer.com; Web site: http://www.springerlink.com
Publication Type: Journal Articles; Reports - Research
Education Level: Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A

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