The effects of commonly occurring violations of the assumption of test items' local independence were investigated in this study. Item responses to college-level communications and mathematics tests were simulated using a multidimensional item response theory model. These data sets were then assigned different degrees of dependency as defined by Ackerman's model and the effects on the one and three parameter models' ability estimates were found. The results suggest caution in interpretation of the unidimensional ability estimate when extreme dependency is present with heterogeneous subtests. / Source: Dissertation Abstracts International, Volume: 49-06, Section: A, page: 1439. / Major Professor: Jacob Beard. / Thesis (Ph.D.)--The Florida State University, 1988.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_76280 |
| Contributors | Pomplun, Mark Richard., Florida State University |
| Source Sets | Florida State University |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | 96 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
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