Longterm adherence to a physical activity intervention: The role of telephone-assisted vs. self-administered coping plans and strategy use

Evers, A., Klusmann, V., Ziegelmann, J. P., Schwarzer, R., & Heuser, I. (2012). Longterm adherence to a physical activity intervention: The role of telephone-assisted vs. self-administered coping plans and strategy use. Psychology & Health, 27, 784–797. doi:10.1080/08870446.2011.582114