PSY 103 Chapter Notes - Chapter 9: Intellectual Disability, Twin, David Wechsler

• School: Stony Brook University
• Department: Psychology
• Course: PSY 103
• Professor: Nancy Franklin

Document Summary

(cid:862)(cid:373)o(cid:374)a(cid:396)(cid:272)hi(cid:272)(cid:863) theo(cid:396)y of i(cid:374)tellige(cid:374)(cid:272)e (cid:271)e(cid:272)ause it i(cid:374)(cid:272)luded a do(cid:373)i(cid:374)a(cid:374)t a(cid:271)ility, o(cid:396) (cid:373)o(cid:374)a(cid:396)(cid:272)h (cid:894)g(cid:895), that ruled over the lesser abilities. All the tasks measure a single underlying ability. An alternative explanation for g is that several types of intelligence correlate because they grow in the same ways. *if so, what might that skill be: one possibility is working memory, another possibility is speed of processing info. Raymond cattell (1987) drew a distinction between fluid intelligence and crystallized intelligence. Fluid intelligence the power of reasoning and using information. It includes the ability to perceive relationships, solve unfamiliar problems, and gain new knowledge. reaches its peak before age 20, remains steady for decades, and declines on average in old age. Ex. learn new skills in a new job, ability to learn earn new words. Crystallized intelligence consists of acquired skills and knowledge and the ability to apply that knowledge in specific situations. remains steady or increases over age.