RT Journal Article T1 Psychometric properties of the fertility problem inventory in Spanish infertile patients undergoing assisted reproduction treatments A1 Domínguez Salas, Sara A1 Rodríguez Domínguez, Carmen A1 Moura Ramos, Mariana A1 Gómez Gómez, Irene A1 Ostos Serna, Rosa A1 Armijo Sánchez, Alberto AB Infertility affects millions of individuals worldwide, significantly impacting mental health and quality of life. Therefore, it is essential to have valid and reliable score interpretations of measurement tools to study the effects of infertility-related stress on people’s lives. This study seeks to undertake the translation and cultural adaptation of the instrument the Fertility Problem Inventory (FPI) into Spanish, assessing its reliability and validity in a sample of 205 heterosexual infertile patients undergoing Assisted Reproductive Treatments (ART). Participants completed an online questionnaire after providing informed consent. Validity evidence based on the internal structure was obtained through Confirmatory Factor Analysis (CFA). In addition, validity evidence based on the relation with other variables was explored by correlations between the FPI with anxiety and depression scales. Internal consistency was also explored. The results indicated that the alternative model of the FPI (two second-order factors) provided a better fit than the first one proposed by Newton et al. (1999) (CFI = 0.95, RMSEA = 0.064) and demonstrated adequate reliability (α = 0.891 for global stress). A positive association was found between higher levels of infertility-related stress and symptoms of anxiety and depression, particularly concerning the impact of infertility on daily life. This study provides validity evidence of the FPI Spanish version for its use with infertile patients undergoing ART, highlighting the importance of considering social and relational aspects, as well as beliefs about parenthood, in understanding the emotional distress associated with infertility. PB Springer SN 1046-1310 SN 1936-4733 (electrónico) YR 2026 FD 2026 LK https://hdl.handle.net/10272/28174 UL https://hdl.handle.net/10272/28174 LA eng NO Domínguez-Salas, S., Rodríguez-Domínguez, C., Moura-Ramos, M., Gómez-Gómez, I., Ostos-Serna, R., & Armijo-Sánchez, A. (2026). Psychometric properties of the fertility problem inventory in Spanish infertile patients undergoing assisted reproduction treatments. Current Psychology, 45(5). https://doi.org/10.1007/s12144-026-09170-x NO Funding for open access publishing: Universidad de Huelva/CBUA. This study was funded by the VII PPIT-US. DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026