Reyes-Fernández, B. ., & Muñoz Rojas, D. (2023). Are there really Stages of Change in Physical Activity? Findings from a Study with a Sample of University Students that Combines the Health Action Process Model with the Transtheoretical Model. Costa Rican Journal of Psychology, 42(2), 277–299. https://doi.org/10.22544/rcps.v42i02.07