Supplementary Materials for: Tactile Biography Questionnaire: A contribution to its validation in an Italian sample

As the interest in the beneficial effects of positive touch experiences is rapidly growing, having reliable and valid tools to its assessment is essential. The Tactile Biography Questionnaire (TBQ) allows to quantify individual differences in affective touch experiences throughout life. The aim of this article is to present a contribution to its validation in the Italian population. Data analysis were run on a sample of 2040 Italian individuals (Female = 1342, 64%) participating in an on-line survey. Confirmatory Factor Analysis and invariance analyses for gender were applied. Concurrent validity was checked using two specific sub-scale of the Touch Avoidance Questionnaire (i.e., Family and Stranger). The four-dimensional structure of the TBQ was confirmed in the overall sample and by gender. Also, the TBQ showed a good concurrent validity with TAQ. The TBQ resulted as a valid instrument with an excellent internal consistency to assess affective experience of touch and can be used to support healthcare professionals and researchers to assess attitudes toward touch in both clinical and research settings. Supplementary materials for: Mariani Wigley, I. L. C., Pastore, M., Mascheroni, E., Tremolada, M., Bonichini, S., & Montirosso, R. (2022). Tactile Biography Questionnaire: A contribution to its validation in an Italian sample. PloS one, 17(9). https://doi.org/10.1371/journal.pone.0274477 ILCMW was supported by the PhD scholarship of University of Padua, Padua, Italy. The contribution of EM was partially supported by Italian Ministry of Health grant# Ricerca Finalizzata SG-2018-12368279. The contribution of RM was partially supported by Italian Ministry of Health Ricerca Corrente 2021. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. unknown unknown