Differences in adolescents' psychological well-being based on levels of mental toughness and physical activity   Creator:   Garrido, Christine Publication Date:   2017 Publisher:   Barry University ( Miami, Fla. ) Type:   Book Format:   vii, 96 leaves ; 28 cm. Source Institution:   Barry University Holding Location:   Barry University Archives and Special Collections Subject Keyword:   Adolescent psychology Child mental health Exercise -- Psychological aspects Physical fitness for children Genre:   Academic theses (lcsh) Language:   English Differences in adolescents' psychological well-being based on levels of mental toughness and physical activity