Rasch modelling to deal with changes in the questionnaires used during long-term follow-up of cohort studies: a simulation study
Abstract Background A specific measurement issue often occurs in cohort studies with long-term follow-up: the substitution of the classic instruments used to assess one or several factors or outcomes studied by new, more reliable, more accurate or more convenient instruments. This study aimed to com...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2016-08-01
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Series: | BMC Medical Research Methodology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12874-016-0211-6 |