Grounded theory (3) Students (3) Estudio (3) Estudiantes (3) Teoría fundamentada (3) Social sciences (2) Interviews (2) Education (2) Entrevistas (2) Educación (2) Información (2) Ciencias sociales (2) éducation (2) Teenagers (1) Youth (1) Women (1) Vocational education (1) Violence (1) Sports (1) Spiritual life (1) Sociology (1) Psychology (1) Physics (1) Physical education and training (1) Peace (1) Motivation (Psychology) (1) Mental health (1) Men (1) Mathematics (1) Human beings (1)