Why item response theory should be used for longitudinal questionnaire data analysis in medical research
Crossref DOI link: https://doi.org/10.1186/s12874-015-0050-x
Published Online: 2015-07-30
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Gorter, Rosalie
Fox, Jean-Paul
Twisk, Jos W. R.
License valid from 2015-07-30
Article History
Received: 22 January 2015
Accepted: 13 July 2015
First Online: 30 July 2015