>There is no evidence to support that

Here are a few papers to look over.

McGurk, F. C. F. (1953). On white and Negro test performance and socio-economic factors. Journal of Abnormal and Social Psychology 37: 484-450.

Garrett, H. E. (1961). The Equalitarian Dogma. Perspectives in Biology and Medicine 4: 480-484. PMID 13703734.

Baker, J. R. (1974). Race, Oxford, UK: Oxford University Press.

Waldman, I. D., Weinberg, R. A. and Scarr, S. (1994). Racial-Group Differences in IQ in the Minnesota Transracial Adoption Study: A Reply to Levin and Lynn. Intelligence 19: 29-44.

Jensen, A. R. (1973). Educability and Group Differences, London: Methuen. ISBN 0-06-012194-7.

Jensen, A. R. (1997). "The Puzzle of Nongenetic Variance" R. J. Sternberg and E. L. Grigorenko Intelligence, Heredity, and Environment, Cambridge, England: Cambridge University Press. ISBN.

Jensen, A. R. (1998a). Adoption Data and Two g-Related Hypotheses. Intelligence 25: 1-6.

Jensen, A. R. and Johnson, F. W. (1994). Race and Sex Differences in Head Size and IQ. Intelligence 18: 309-333.

Jensen, A. R. and Reynolds, C. R. (1982). Race, Social Class and Ability Patterns on the WISC-R. Personality and Individual Differences 3 (4): 423-438.

Jensen, A. R. and Whang, P. A. (1994). Speed of Accessing Arithmetic Facts in Long-Term Memory: A Comparison of Chinese-American and Anglo-American Children. Contemporary Educational Psychology 19: 1-12.

Rushton, J. P. (1989a). Japanese Inbreeding Depression Scores: Predictors of Cognitive Differences between Blacks and Whites. Intelligence 13: 43-51.

Rushton, J. P. (1989b). The Evolution of Racial Differences: A Response to M. Lynn. Journal of Research in Personality 23: 7-20.

Rushton, J. P. (1991). Mongoloid-Caucasoid Differences in Brain Size from Military Samples. Intelligence 15 (3): 351-359.

Rushton, J. P. (1992). Cranial Capacity Related to Sex, Rank, and Race in a Stratified Random Sample of 6,325 U.S. Military Personnel. Intelligence 16: 401-413.

Rushton, J. P. (1994). Sex and Race Differences in Cranial Capacity from International Labour Office Data. Intelligence 19: 281-294.

Rushton, J. P. (1996). Race, Intelligence, and the Brain: The Errors and Omissions of the Revised Edition of S. J. Gould's the Mismeasure of Man. Personality and Individual Differences 23: 169-180.

Rushton, J. P. (1997). Cranial Size and IQ in Asian Americans from Birth to Age Seven. Intelligence 25: 7-20.

Rushton, J. P. (1999). Secular Gains in IQ Not Related to the g Factor and Inbreeding Depression--Unlike Black-White Differences: A Reply to Flynn. Personality and Individual Differences 26: 381-389.

Rushton, J. P. (2000). Race, Evolution, and Behavior: A Life History Perspective, 3rd, Port Huron, MI: Charles Darwin Research Institute. ISBN 0-9656836-1-3.

Rushton, J. P. (2001). Black-White Differences on the g Factor in South Africa: A "Jensen Effect" On the Wechsler Intelligence Scale for Children--Revised. Personality and Individual Differences 31: 1227-1232.

Rushton, J. P. (2002). Jensen Effects and African/Coloured/Indian/White Differences on Raven's Standard Progressive Matrices in South Africa. Personality and Individual Differences 33: 1279-1284.

Rushton, J. P. (2005). (Book review) Lynn Richard, Race Differences in Intelligence: An Evolutionary Analysis. Personality and Individual Differences: In press.

Rushton, J. P. and Ankney, C. D. (2000). Size Matters: A Review and New Analyses of Racial Differences in Cranial Capacity and Intelligence That Refute Kamin and Omari. Personality and Individual Differences 29: 591-620.

Rushton, J. P. and Ankney, C. D. (1996). Brain Size and Cognitive Ability: Correlations with Age, Sex, Social Class, and Race. Psychonomic Bulletin and Review 3: 21-36.

Rushton, J. P., Brainerd, C. J. and Pressley, M. (1983). Behavioral Development and Construct Validity: The Principle of Aggregation. Psychological Bulletin 94: 18-38.

Rushton, J. P. and Jensen, A. R. (2003). African-White IQ Differences from Zimbabwe on the Wechsler Intelligence Scale for Children--Revised Are Mainly on the g Factor. Personality and Individual Differences 34: 177-183.

Rushton, J. P. and Jensen, A. R. (Jun 2005). Thirty Years of Research on Race Differences in Cognitive Ability. Psychology, Public Policy, and Law 11: 235-294.

Rushton, J. P. and Jensen, A. R. (Jun 2005). Wanted: More Race Realism, Less Moralistic Fallacy. Psychology, Public Policy, and Law 11 (2): 328-336.

Rushton, J.P., and A.R. Jensen (In press). The totality of available evidence shows race-IQ gap still remains. Psychological Science.

Rushton, J. P. and Osborne, R. T. (1995). Genetic and Environmental Contributions to Cranial Capacity in Black and White Adolescents. Intelligence 20: 1-13.

Rushton, J. P. and Skuy, M. (Winter 2000). Performance on Raven's Matrices by African and White University Students in South Africa. Intelligence 28 (4): 251-265.

Rushton, J. P., Skuy, M. and Fridjhon, P. (2002). Jensen Effects among African, Indian, and White Engineering Students in South Africa on Raven's Standard Progressive Matrices. Intelligence 30: 409-423.

Rushton, J. P., Skuy, M. and Fridjhon, P. (2003). Performance on Raven's Advanced Progressive Matrices by African, East Indian, and White Engineering Students in South Africa [Electronic Version]. Intelligence 31: 123-137.