Identified and unidentified cases of the fixed-effects 3- and 4-parameter models in item response theory
Crossref DOI link: https://doi.org/10.1007/s41237-017-0032-x
Published Online: 2017-08-28
Published Print: 2017-07
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Ogasawara, Haruhiko http://orcid.org/0000-0002-5029-2086
Funding for this research was provided by:
Japanese Ministry of Education, Culture, Sports, Science and Technology (JSPS KAKENHI, Grant No.17K00042)
License valid from 2017-07-01