ERIC Number: EJ1254336
Record Type: Journal
Publication Date: 2020
Pages: 18
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1530-5058
EISSN: N/A
The Recovery of Correlation between Latent Abilities Using Compensatory and Noncompensatory Multidimensional IRT Models
Fu, Yanyan; Strachan, Tyler; Ip, Edward H.; Willse, John T.; Chen, Shyh-Huei; Ackerman, Terry
International Journal of Testing, v20 n2 p169-186 2020
This research examined correlation estimates between latent abilities when using the two-dimensional and three-dimensional compensatory and noncompensatory item response theory models. Simulation study results showed that the recovery of the latent correlation was best when the test contained 100% of simple structure items for all models and conditions. When a test measured weakly discriminated dimensions, it became harder to recover the latent correlation. Results also showed that increasing the sample size, test length, or using simpler models (i.e., two-parameter logistic rather than three-parameter logistic, compensatory rather than noncompensatory) could improve the recovery of latent correlation.
Descriptors: Item Response Theory, Models, Test Items, Simulation, Correlation, Sample Size, Test Length
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
IES Funded: Yes
Grant or Contract Numbers: R305D150051