1. The Evolution of IQ

2. IQ and Alfred Binet 1904 Binet commissioned to find a way to identify children who might need special instruction. Designed to test reason, ability to judge and solve problems. Age graded tasks (The majority can) Score=Mental Age (Test Score)/Chronological Age x 100. Average intelligence = 100.

3. Testing Mania Intelligence was seen as fixed Testing used to “filter out” people in immigration, armed forces and even society. –Some cases of forced sterilization Test had a cultural bias –Tennis Courts

4. New Tests Include verbal, spatial skills and problem solving. Scored using raw scores compared to others who have taken similar tests. “Bell Curve” 130+ Very superior 2.2% 120-129 Superior 6.7% 110-119 High average 16.1% 90-109 Average 50% 80-89 Low average 16.1% 70-79 Borderline 6.7% Below 70 Extremely low 2.2%

5. IQ: Nature vs. Nurture Hereditary-How do we know? –Twins –Adoption –Siblings Environment –Stimulation –Expectations for Success –Health, Nutrition –Chaos vs. Structure –Schooling