Why item response theory should be used for longitudinal questionnaire data analysis in medical research R Gorter, JP Fox, JWR Twisk BMC Medical Research Methodology 15, 1-12, 2015 | 109 | 2015 |
Measurement model choice influenced randomized controlled trial results R Gorter, JP Fox, A Apeldoorn, J Twisk Journal of Clinical Epidemiology 79, 140-149, 2016 | 35 | 2016 |
Cohort profile: the prospective research in stress-related military operations (PRISMO) study in the Dutch armed forces SJ van der Wal, R Gorter, A Reijnen, E Geuze, E Vermetten BMJ open 9 (3), e026670, 2019 | 33 | 2019 |
Pre-treatment cortisol awakening response predicts symptom reduction in posttraumatic stress disorder after treatment AE Rapcencu, R Gorter, M Kennis, SJH Van Rooij, E Geuze Psychoneuroendocrinology 82, 1-8, 2017 | 30 | 2017 |
Time-dependent effects of psychosocial stress on the contextualization of neutral memories MSC Sep, VA van Ast, R Gorter, M Joëls, E Geuze Psychoneuroendocrinology 108, 140-149, 2019 | 21 | 2019 |
Latent growth modeling of IRT versus CTT measured longitudinal latent variables R Gorter, JP Fox, GT Riet, MW Heymans, JWR Twisk Statistical methods in medical research 29 (4), 962-986, 2020 | 16 | 2020 |
Missing item responses in latent growth analysis: Item response theory versus classical test theory R Gorter, JP Fox, I Eekhout, MW Heymans, JWR Twisk Statistical methods in medical research 29 (4), 996-1014, 2020 | 9 | 2020 |
No time-dependent effects of psychosocial stress on fear contextualization and generalization: A randomized-controlled study with healthy participants MSC Sep, R Gorter, VA van Ast, M Joëls, E Geuze Chronic Stress 3, 2470547019896547, 2019 | 6 | 2019 |
Versorgungsforschung der anti-VEGF-therapie: selektion und methodische besonderheiten F Ziemssen, A Stahl, S Dimopoulos Klinische Monatsblätter für Augenheilkunde 234 (12), 1483-1492, 2017 | 5 | 2017 |
Development of Self-Directedness and Cooperativeness in Relation to Post-Traumatic Stress Disorder Symptom Trajectories After Military Deployment A Reijnen, E Geuze, R Gorter, E Vermetten Chronic Stress 2, 2470547018803511, 2018 | 4 | 2018 |
The analysis of longitudinal questionnaire data: IRT vs CTT R Gorter | | 2018 |
Applying multilevel IRT modeling for analysing longitudinal data R Gorter, MR De Boer, MW Heijmans, JWR Twisk QUALITY OF LIFE RESEARCH 22, 2013 | | 2013 |
Comparing two methods for longitudinal analysis on questionnaire data: multilevel analysis versus multilevel IRT analysis R Gorter, MR De Boer, MW Heijmans, JWR Twisk QUALITY OF LIFE RESEARCH 21, 98-98, 2012 | | 2012 |
The analysis of longitudinal questionnaire data: IRT vs CTT V Subramaniam, R Gorter | | |