Order Effects in Stated-Choice Experiments: Study of Transport Mode Choice Decisions

Borgers, Awj Aloys; Timmermans, Harry; Berenos, M

doi:10.3141/1985-02

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…It has been recognized that the presentation of the choice tasks affects choice outcomes, for example, the order of the alternatives, the order of the attributes, the appearance of the choice tasks, and so on [ 26 , 27 ]. For choice experiments involving named alternatives, regardless of the type of experimental design method used to generate the choice set, we have two ways to present them depending on where we display the alternatives’ names: a) the labeled presentation style, where the names are presented in the header row of the table as is illustrated by the example shown in Table 1 .…”

Section: Named Alternatives and Stated Choice Experimentsmentioning

confidence: 99%

Do labeled versus unlabeled treatments of alternatives’ names influence stated choice outputs? Results from a mode choice study

et al. 2017

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Discrete choice experiments have been widely applied to elicit behavioral preferences in the literature. In many of these experiments, the alternatives are named alternatives, meaning that they are naturally associated with specific names. For example, in a mode choice study, the alternatives can be associated with names such as car, taxi, bus, and subway. A fundamental issue that arises in stated choice experiments is whether to treat the alternatives’ names as labels (that is, labeled treatment), or as attributes (that is, unlabeled treatment) in the design as well as the presentation phases of the choice sets. In this research, we investigate the impact of labeled versus unlabeled treatments of alternatives’ names on the outcome of stated choice experiments, a question that has not been thoroughly investigated in the literature. Using results from a mode choice study, we find that the labeled or the unlabeled treatment of alternatives’ names in either the design or the presentation phase of the choice experiment does not statistically affect the estimates of the coefficient parameters. We then proceed to measure the influence toward the willingness-to-pay (WTP) estimates. By using a random-effects model to relate the conditional WTP estimates to the socioeconomic characteristics of the individuals and the labeled versus unlabeled treatments of alternatives’ names, we find that: a) Given the treatment of alternatives’ names in the presentation phase, the treatment of alternatives’ names in the design phase does not statistically affect the estimates of the WTP measures; and b) Given the treatment of alternatives’ names in the design phase, the labeled treatment of alternatives’ names in the presentation phase causes the corresponding WTP estimates to be slightly higher.

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Section: Named Alternatives and Stated Choice Experimentsmentioning

confidence: 99%

Do labeled versus unlabeled treatments of alternatives’ names influence stated choice outputs? Results from a mode choice study

et al. 2017

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show abstract

“…van der Waerden et al (2006) also found that the order within the choice set was significant when running experiments with branded alternatives, while Wickelmaier and Choisel (2006) found that order was important for 7 of the 9 attributes that they investigated in a generic DCE, and always favoured the second position.…”

Section: Introductionmentioning

confidence: 99%

Optimal Designs for Stated Choice Experiments that Incorporate Position Effects

Bush

Street

Burgess

2012

Communications in Statistics - Theory and Methods

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Davidson and Beaver (1977) extended the Bradley-Terry model to incorporate the possible effect of position within a choice set on the choices made in paired comparisons experiments.In this paper we further extend the Davidson and Beaver result to choice sets of any size.Under a mild restriction we show that designs optimal for the multinomial logit model are still optimal when position effects are included in the model. We also show how designs balanced for carry-over effects of all orders can be used to construct designs with a diagonal information matrix for attribute effects. The theoretical results in this paper assume that we assume the null hypothesis of equal merits, but also discuss the consequences of unequal 1 merits using an example.

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Optimal design of factorial paired comparison experiments in the presence of within-pair order effects

Goos

Großmann

2011

Food Quality and Preference

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Order Effects in Stated-Choice Experiments: Study of Transport Mode Choice Decisions

Cited by 5 publications

References 11 publications

Do labeled versus unlabeled treatments of alternatives’ names influence stated choice outputs? Results from a mode choice study

Do labeled versus unlabeled treatments of alternatives’ names influence stated choice outputs? Results from a mode choice study

Optimal Designs for Stated Choice Experiments that Incorporate Position Effects

Optimal design of factorial paired comparison experiments in the presence of within-pair order effects

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