The theoretical framework of the self-determination theory establishes that the
satisfaction of basic psychological needs and more self-determined motivational forms
are related to positive behavioral consequences and, therefore, may increase the
intention to be physically active in Physical Education students. In this sense, the need
for novelty has been proposed as a psychological need by recent scientific evidence,
so it is necessary to prove its possible contribution to the prediction of young people’s
behavior. Therefore, the main objective of the study was to test a model that analyzed
the power of prediction of the satisfaction of the needs for autonomy, competence,
relatedness, and novelty as well as the motivation experienced in Physical Education on
the intention to be physically active. A questionnaire was administered to 1665 Physical
Education students with an average age of 12.43 years (SD = 1.87), of which 835
were boys and 830 were girls. An adaptation of the Spanish educational context of the
Basic Psychological Needs in Exercise Scale (BPNES) that includes the need for novelty,
the Perceived Locus of Causality Scale (PLOC), and the Intention to be Physically
Active Scale (IPAS) was used. Path analysis results showed that the satisfaction of
the psychological needs for autonomy, competence, relatedness, and novelty predicted
autonomous motivation. On the other hand, the need for autonomy positively predicted
controlled motivation, while the satisfaction of relatedness did so negatively. The need
for competence and autonomous motivation positively predicted the intention to be
physically active in Physical Education students, obtaining an explained variance of
33%. However, controlled motivation was not related in a statistically significant way to
the intention to be physically active. In conclusion, the results of the hypothesized model
highlight the importance of satisfying all the basic psychological needs (including novelty)
and give special emphasis to the need for competence, since it predicts autonomous
motivation and the intention to be physically active outside of the educational context.