Andersen M H, Ottesen L,Thing L F. (2018). The social and psychological health outcomes of team sport participation in adults: An integrative review of research. Scandinavian journal of public health, Bekker S. (2016). Exploring the relationship between psychological capital and work engagement (Doctoral dissertation, North-West University (South Africa), Potchefstroom Campus). Boyer E M. (2007). Psychological benefits of sport participation and physical activity for adolescent females. University of North Texas. Buchman A S, Boyle P A, Yu L, Shah R C, et all. (2012). Total daily physical activity and the risk of AD and cognitive decline in older adults. Neurology, 78(17):1323-1329. Carreres-Ponsoda F, Carbonell A E, Cortell-Tormo J M, Fuster-Lloret, V. et all. (2012). The relationship between out-of-school sport participation and positive youth development. Journal of Human Sport and Exercise, 7(3): 671-683 Caruso R. (2011). Crime and sport participation: Evidence from Italian regions over the period 1997–2003. The Journal of Socio-Economics, 40(5): 455-463. Carver C S, Scheier F S, Miller C J, Fulford D. (2009). Optimism. In S. J. Lopez & C. R. Snyder (Eds.), Oxford handbook of Positive Psychology pp: 303-321. New York: Oxford University Press. Clark H J, Camiré M, Wade T J, Cairney J. (2015). Sport participation and its association with social and psychological factors known to predict substance use and abuse among youth: A scoping review of the literature. International review of sport and exercise psychology, 8(1): 224-250. Cox S. (2012). Game of Life: How sport and recreation can help make us healthier, happier and richer. The Sport and Recreation Alliance. Di Sipio A N, Falco A, Kravina L, De Carlo N A. (2012). Positive personal resources and organizational well-being: Resilience, hope, optimism, and self-efficacy in an Italian health care setting. TPM, 19(2): 81-95. Eccles J S, Barber B C. (1999). Student council, volunteering, basketball, or marching band: What kind of extracurricular involvement matters? Journal of AdolescentResearch, 14(1): 10-43. Eime R M, Young J A, Harvey J T, Charity M J, et all. (2013). A systematic review of the psychological and social benefits of participation in sport for children and adolescents: informing development of a conceptual model of health through sport. International journal of behavioral nutrition and physical activity, 10(1): 98. Finn J D, Rock D A. (1997). Academic success among students at risk for school failure. Journal of applied psychology, 82(2): 221. Garyfallos A, Asterios P. (2011). Motivation of 10-12 years old Cypriot students toward sports participation. Journal of Physical Education and Sport, 11(4): 401-411 Gill D L, Gross J B, Huddleston S. (1983). Participation motivation in youth sports. International Journal of Sport Psychology, 14(1): 1-14. Herdem D O. (2019). The Effect of Psychological Capital on Motivation for Individual Instrument: A Study on University Students. Universal Journal of Educational Research, 7(6): 1402-1413. Holt N L, Jones M I. (2008). Future directions for positive youth development and sport research. In N.L. Holt (Ed.), Positive Youth Development through Sport.pp: 122–132. New York: Routledge. Janssen I. (2007). Physical activity guidelines for children and youth. Applied Physiology, Nutrition, and Metabolism, 32(2): 109-121. Kondric M, Sindik J, Furjan-Mandic G, Schiefler B. (2013). participation motivation and student’s physical activity among sport students in three countries. Journal of sports science & medicine, 12(1): 10. Lahti, J, Lahelma, E. and Rahkonen, O. (2012). Changes in leisure-time physical activity and subsequent sickness absence: a prospective cohort study among middle-aged employees. Preventive Medicine, 55(6): 619-622. Lee A H, Su D, Pasalich M, Wong Y L, et all. (2012). Habitual physical activity reduces risk of ovarian cancer: A case-control study in southern China. Preventive Medicine, In Press. Luthans F Avolio B J, Avey J B, Norman S M. (2007). Positive psychological capital: Measurement and relationship with performance and satisfaction. Personnel psychology, 60(3): 541-572. Luthans F, Youssef-Morgan C. M, Avolio B. J. (2015). Psychological capital and beyond. New York, NY: Oxford, University Press Madani R, Zerf M, Bouabdellah S B. (2019). Algerian Sport High School as Comprehensive Approach for Improving Public Education System. Acta Facultatis Educationis Physicae Universitatis Comenianae, 59(1): 69-78. Malebo A, Van Eeden C, Wissing M P. (2004). Sport participation, psychological well-being, and psychosocial development in a group of young black adults. South African Journal of Psychology, 37(1): 188-206. Oughton C, Tacon R. (2007). Sport's contribution to achieving wider social benefits. A Report for the Department of Culture Media and Sport. Parsons J K, Messer K, White M, Barrett-Connor E, et all. (2011). Obesity increases and physical activity decreases lower urinary tract symptom risk in older men: the Osteoporotic Fractures in Men study. European Urology, 60(6): 1173-1180. Pfeifer C, Cornelißen T. (2010). The impact of participation in sports on educational attainment—New evidence from Germany. Economics of Education Review, 29(1): 94-103. Roychowdhury D. (2018). A comprehensive measure of participation motivation: Examining and validating the Physical Activity and Leisure Motivation Scale (PALMS). Slocum J W, Hellriegel D. (2011). Principles of Organisational Behaviour. 13th edition. USA: South-Western, Cengage Learning. Tamer I, Dereli B, Saglam M. (2014). Unorthodox forms of capital in organizations: positive psychological capital, intellectual capital and social capital. Journal of Social and Behavioral Sciences20(2): 963 – 972. Temple B, Janzen B L, Chad K, Bell G, et all. (2008). The health benefits of a physical activity program for older adults living in congregate housing. Canadian Journal of Public Health, 88(1): 36-40. Thompson Coon J, Boddy K, Stein K, Whear R, et all. (2003). Does participating in physical activity in outdoor natural environments have a greater effect on physical and mental wellbeing than physical activity indoors? A systematic review. Environmental Science and Technology, 45(5): 1761-1772. Veliz P, Shakib S. (2012). Interscholastic Sports Participation and School based Delinquency: Does Participation in Sport Foster a Positive High School Environment? Sociological Spectrum: Mid-South Sociological Association, 32(6): 558-580. Walsh R. (2011). Lifestyle and Mental Health. American Psychologist, 66(7): 579-592. Warburton D E R, Katzmarzyk P T, Rhodes R, Shephard R.J. (2007). Evidence-informed physical activity guidelines for Canadian adults. Canadian Journal of Public Health, 98(2):22-34. Wynaden D, Barr L, Omari O, Fulton A. (2012). Evaluation of service users experiences of participating in an exercise programme at the Western Australian State Forensic Mental Health Services. International Journal of Mental Health Nursing, 21(3): 229-235. Zeng H Z, Hipscher M, Leung R W. (2011). Attitudes of high school students toward physical education and their sport activity preferences. Journal of Social Sciences, 7(4): 529.