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Title: Question order and context effects on multi-items scales questions
Author: Vieira, Paula Cristina Figueiredo
Keywords: Question order effect
Context effects
Question position
Customer satisfaction
Multi-item scales
Validity and reliability
Defense Date: 15-Jun-2012
Series/Report no.: TEGI;0311
Abstract: This study examines question order effects, in particular context effect, on multiple-item scales questions and the impact that these effects can have in validity and reliability of measurement. For this purpose, it was performed a survey research with two versions of ECSI questionnaire, in which the position of the indicators of two constructs was changed. In the two groups of items studied, only one of them presented differences when they are grouped or separated in the questionnaire. Although even in this group of questions the effect is diminished, the results suggest that context effects are not necessarily negative for marketing research, since grouping related questions together can result in a higher correlation between them and, consequently, lead to a decrease of variation and an increase of reliability. However, the emergence of context effect seems to be closely related with question content and the level of similarity between the items. Future research should examine the generalization of these results across other service industries and with other question content.
Description: Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de Informação
Peer review: no
Appears in Collections:NIMS - Dissertações de Mestrado em Estatística e Gestão da Informação

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