1. IQ and Race Cory Plunk 4-27-05 Physics/CF3333

2. IQ Tests Popularized in modern form during WWI Uses analogies, pattern recognition, and other factors to measure IQ Must be carefully created to avoid cultural bias

3. Cultural Bias Romeo is to Juliet as Tristan is to (a) Carmen (b) Elizabeth (c) Isolde (d) Marguerite vs Continue the series: X 0 0 0 0 X X X 0 0 0 X X X 0 0__

4. Jensen 1969: Arthur Jensen, educational psychologist from U. of California began publishing his work that showed a large racial correlation with IQ Jensen claimed his work shows a genetic component to IQ

5. Results Showed Whites to be 15 IQ points above Blacks on average Discounted major influence from cultural or environmental influence other than SES (Socioeconomic Situation) Based claim off studies of mixed-race persons and adopted persons

6. Biological Mother Avg. IQ Adoptive Parents Avg. Adoptee IQ % Adoptees IQ 120+ Low IQ: Avg. 89.4 High IQ: Avg. 121.6 110.8 114.8 102.6 118.3 0 44 15 0 Average IQ Adoptive fathers120.8 Adoptive mother118.2 Natural Children of adoptive parents116.7 White/Black adoptees109.0 (half Black half White parentage) Black/Black adoptees96.8

7. Problems Fails to disprove cultural & environmental effects No hard evidence Genetics do not support theory Conflicting studies What is race?

8. % of Black Pop % Above 125 IQ % Above 140 IQ N28.322.221.4 NNW31.646.042.9 NW25.315.921.4 NWW14.815.914.3 Source: Flynn, 81 N = “All” Black NNW = Mostly Black NW = Half Black Half White NWW = Mostly White