The aim of this study was to adapt and validate the Basic Psychological Needs Satisfaction Scale (BPNS) for Portuguese children and adolescents. It involved 510 participants aged between 9 and 16 years old. The results show moderate to high levels of internal consistency and a good adjustment of factorial solution models with two and three factors in accordance with the correspondent theoretical framework. However, the factorial model with two factors is the one that presents better fit. The results also support hypotheses regarding convergent validity between the factors found and other related variables. In sum, the current version of the questionnaire seems to be an appropriate general measure of basic psychological needs in relationships.
Psychological assessment; basic psychological needs
