Journal
TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR
Volume 24, Issue -, Pages 103-116Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trf.2014.04.015
Keywords
Electric vehicle; Purchase decisions; Stage model; Psychology; Norway; Multilevel analysis; Latent growth; Longitudinal; Prospective
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This paper presents the results of a longitudinal prospective study which followed 113 people interested in the purchase of an electric vehicle for a period of two months. Based on an adapted stage model of self-regulated behavioral change (Bamberg, 2013b), a short online questionnaire with a stage diagnostic and the measurement of central model constructs was administered to the participants every second day. The analysis shows that 85% of transitions between the stages occur along the paths of the stage model. Stage transitions are preceded by increases in goal intentions and implementation intentions during the week before the transition. Intentions are predicted by most of the expected model constructs, but the effects were different on the between-person and the within-person level. The average stage durations are between two and three weeks. Implications of the study for research on stage models and practice are discussed. (C) 2014 Elsevier Ltd. All rights reserved.
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