Galhardo, A., Cunha, M., Monteiro, B, & Pinto-Gouveia, J. (2020). Assessing psychological inflexibility in infertility: The development and validation study of the Psychological Inflexibility Scale – Infertility (PIS-I). Journal of Contextual Behavioral Science, 18, 239-246. https://doi.org/10.1016/j.jcbs.2020.09.006 The scale is in Table 1.
