Brianna has set a personal goal to compete on her university cross country team next year. She has hired a personal trainer, bought the best running shoes available, and set a rigorous training schedule. Brianna's desire to join the cross country team has served as a: Brianna has set a personal goal to compete on her university cross country team next year. She has hired a personal trainer, bought the best running shoes available, and set a rigorous training schedule. Brianna's desire to join the cross country team has served as a: motive. perception. personal identity. self-efficacy