Anastasi, A., & Urbina, S. (1997). Psychological testing (7th ed.). Englewood Cliffs, NJ: Prentice Hall.
Avramidis, E., Bayliss, P., & Burden, R. (2000). A Survey into Mainstream Teachers' Attitudes Towards the Inclusion of Children with Special Educational Needs in the Ordinary School in one Local Education Authority. Educational psychology, 20(2), 191.
Bines, H. (2000). Inclusive Standards? Current developments in policy for special educational needs in England and Wales. Oxford review of education, 26(1), 21.
Croll, P., & Moses, D. (1998). Pragmatism, ideology and educational change: The case of special educational needs. British Journal Of Educational Studies, 46(1), 11-25.
Cronbach, L. J. (1990). Essentials of psychological testing (5th ed.). New York: Harper and Row.
Gardner, H., Kornhaber, M., & Wake, W. (1996). Intelligence: Multiple perspectives. Fort Worth: Harcourt Brace.
Howe, M. J. A. (1997). IQ in question. London: Sage.
Kaplan, R. M., & Saccuzzo, D. (1997). Psychological testing: Principles, applications and issues (4th ed.). Belmont, CA: Wadsworth.
Liebert, R., & Liebert, L. I. (1998). Personality: Strategies and issues (8th ed.). Belmont, CA: Wadsworth.
Mischel, W. (1999). Introduction to personality (6th ed.). Fort Worth: Harcourt Brace.
Pervin, L. A. (1996). Personality: Theories and research (7th ed.). New York: John Wiley.
Richardson, K. (2002). What IQ tests test. Theory and Psychology, 12.
Rutter, M. (2002). Nature, nurture, and development: from evangelism through science toward policy and practice. Child Development, 73, 1-21.
Sternberg, R. J., & Grigorenko, E. (Eds.). (1997). Intelligence, Heredity and Environment. Cambridge: Cambridge University Press.
Wachs, T. (2000). Necessary but not sufficient: the respective roles of single and multiple influences on individual development. Washington, DC: APA.