Intelligence part 2

Intelligence part 2

1. Factor Analysis

   • WAIS
     • Scores from sub-tests are highly correlated
   • Spearman (1863-1945)
   • Finds a summary among patterns of correlations of how scores are related
     • Common factors shared by scores
       • If two subtests are correlated, theyre influenced by the same factor
       • General Factor is General Intelligence (G)
         • A mental attribute that contributes to the performance of virtually any task
           • G and specialised ability determines performance

2. Hierarchical Model of intelligence

   • Top level is G
     • Middle level is Verbal, quantitative and spatial ability
       • Bottom level is more specialised ability

3. Fluid and crystalised Intelligence

   • Fluid is the ability to deal with new and unusual problems
   • Crystalised is acquired knowledge

4. High IQ is associate with mental speed

   • Less energy consumption with Higher IQ = more efficient brain

5. Working memory capacity

   • How efficiently someone can manage multiple mental processes at once
     • Tested by the recall of a series of sentences
   • Actually Measures the executive control over ones own thoughts