5Ackerman, B. P. , Brown, E. D. , & Izard, C. E. ( 2004 ). The relations between persistent poverty and contextual risk and children's behavior in elementary school. Developmental Psychology,40,3,367 -377.
6Artelt, C. , Baumert, J. , Julius-McElvaney, N. , & Peschar, J. ( 2003 ). Learners for life. Paris : OECD.
7Avey,J. B. ,Luthans,F. ,Smith,R. M. ,& Palmer,N. F. (2010). Impaet of positive psychological capital on employee wellbeing over time. Journal of Occupational Health Psychology, 15,1,17 - 28.
8Bandura, A. ( 1997 ). Self-efficacy : The exercise of control. New York : W. H. Freeman and Company.
9Bradley, R. H. , & Corwyn, R. F. ( 2002 ). Socioeconomic Status and Child Development. Annual Review of Psychology,53,371 - 399.
10Davis-Kean,P. E. (2005). The influence of parent education and family income on child achievement :The indirect role of parental expectations and the home environment. Journal of Family Psychology, 19,2,294 - 304.