Abstract
In order to prove the hypothesis of sign effect in intertemporal choice experiments, the empirical studies described in the specialized literature apply univariate tests (in most cases parametric t or F tests) even when multivariate inferential procedures are more suitable according to the experimental data, the study design and the goal of the analysis. Furthermore, the used tests do not take into account the possible presence of confounding effects, very common in such kind of experimental studies. In this paper, a multivariate nonparametric method to test for sign effect in intertemporal choice is proposed. This method overcomes the mentioned limits of the tests usually applied in previous studies. A case study related to a survey performed at the University of Almeria (Spain) is presented. The methodological solution based on the nonparametric test is described and the results of its application to the data collected in the sample survey performed in Almeria are shown.
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Bonnini, S., Oller, I.M.P. (2020). Test for Sign Effect in Intertemporal Choice Experiments: A Nonparametric Solution. In: La Rocca, M., Liseo, B., Salmaso, L. (eds) Nonparametric Statistics. ISNPS 2018. Springer Proceedings in Mathematics & Statistics, vol 339. Springer, Cham. https://doi.org/10.1007/978-3-030-57306-5_9
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