«Our work on validating the JPAQ test improved the metrics of Joines’ original version»

This article includes an interview with Julia Poltavskaya—the author of the project dedicated to validation and modification of the Personality Adaptation Questionnaire (JPAQ) by Vann Joines (an ITAA-accredited teaching transactional analyst, licensed clinical psychologist, PhD, and president of the Southeast Institute for Group and Family Therapy in North Carolina, USA). The speaker talks about the stages of the research project "Experience in Developing and Psychometric Approbation of the Russian-Language Version of the Personality Adaptation Questionnaire (JPAQ)", conducted in collaboration with the questionnaire's author, V. Joines. The original questionnaire’s author monitored all stages of the validation process for the professional licensed Russian version of the test (license holders of the modified Russian-language version — Vadim Petrovsky and Julia Poltavskaya). The project was carried out under the academic supervision of Vadim Arturovich Petrovsky, Professor at the Department of Psychology, Faculty of Social Sciences, National Research University Higher School of Economics (HSE), Corresponding Member of the Russian Academy of Education (RAE). In the interview, Julia Poltavskaya provides a detailed explanation of the respondent sampling process. At different stages of test validation, the study involved 300, 850, and 1,500 participants. A three-stage test modification with back-translation was implemented, and the methodology underwent retesting for validity within a permanent focus group of 343 individuals. To examine internal structural validity, mathematical statistical methods were employed, including modern factor analysis techniques (Exploratory Structural Equation Modeling, ESEM) as well as advanced reliability indices such as Cronbach’s alpha, McDonald’s omega, and the Greatest Lower Bound (GLB) reliability. Psychometric validation of the questionnaire was conducted with the participation of Evgeny Osin, PhD in Psychology, Associate Professor at the Department of Psychology, and Deputy Head of the International Laboratory of Positive Psychology of Personality and Motivation at HSE. The adapted test demonstrated Cronbach’s alpha coefficients ranging from 0.61 to 0.78 and GLB indices from 0.74 to 0.84. External validation (assessment of convergent and discriminant validity) was also performed using two methods: the Individual-Typological Questionnaire by Lyudmila Nikolayevna Sobchik and the Personality Belief Questionnaire (PBQ) by A. Beck, adapted by E. Rasskazova. The project adhered to the standards prescribed by the International Test Commission (ITC).