PSY 2105 Chapter Notes - Chapter 9: Treatment And Control Groups, Abecedarian Early Intervention Project, Hierarchical Database Model
30 Jan 2015
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Historical background: end of 19th century psychologists from us and europe attempted to measure individual differences in intelligence. In england, galton built a laboratory to study sensory functioning. Intelligence = principles of cognition, apprehension of experience, and education of relations. Found that measures of sensory function tended to be positively correlated with measures of intelligence. Assumed that all conceivable measures of intelligence were related to a common general intellectual function [intelligence as construct hypothetical entity] Scores on a measure of intelligence can be partitioned into two components. * g-factor is a factor of intelligence that is common to all intellectual tasks. Variably estimated by any and all possible measures. S-factor is a factor of intelligence that is specific to a particular task. * needed to identify individuals classified as morons , idiots , and imbeciles . Against spearman notion of simple sensory function and intelligence. * have to use several complex tasks that would measure separate faculties of.
