PSY 100 Lecture Notes - Lecture 7: Santa Barbara City College, Lewis Terman, South Dakota Highway 15
Document Summary
Textbook definition: the ability to think, understand, reason, and adapt to or overcome: e. g. She has an iq of 120 not like she has blue eyes . Charles darwin"s cousin sir francis galton: applied survival of the fittest to intelligence. Wanted to measure innate mental abilities: one of the first to promote the idea of quantifying mental abilities, measure nervous system efficiency (e. g, reaction speed, hand strength, skull size, etc. ) Hired by french government to identify school children needing special education. Observed that dull children perform like younger children and bright children like older: concept of mental age, william stern and intelligence quotation. Used tests to measure mental judgement: direction, adaptation, and criticism. William stern takes concept of age one step further. Average child: mental age = chronological age. (8/9) x100 = 88. 89 = below average 9-year-old. (10/9) x 100 = 111 = above average 9-year-old. Works okay for children, but not for adults.
