HPSLEC162010 - AGENDA I. History and Nature of Intelligence...

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1 Human Problem Solving Lec. 16 Special Lecture on Testing AGENDA I. History and Nature of Intelligence Testing A. Beginning of Mental Testing B. IQ Tests C. Types of Intelligence II. Knowledge and Ability Testing
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2 I . History and Nature of Intelligence Testing Darwin (1809-1882). Well off family- Mom Wedgwood, Dad successful physician Graduated with a degree in theology, but liked biology. Served as the naturalist on a voyage around the world on H.M.S. Beagle. Central to his theory of evolution was the fact that there are large individual differences in physical traits. Physical traits in a species tend to follow a normal bell shaped curve. Later this assumption was a key to measuring mental traits.
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3 Sir Francis Galton Galton (1822-1911) was a cousin of Charles Darwin. Extremely precocious. Could read and write 2.5 years. Read all Shakespeare by 7. Rich traveler. Mapped much of Africa. President of Royal Geographical Society.
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4 Galton’s Approach Galton was interested in measuring everything: 1. Beauty of women 2. Boredom at meetings 3. Common features (composite photos) 4. Effectiveness of prayer 5. Intelligence 6. Relative contributions of nature and nurture to mental traits 7. Word associations He is known as the founder of British psychology . His main contribution was to measure mental traits. He invented statistical tools to carry out this work.
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5 Galton’s Invention of Correlation The object of statistical science is to discover methods of condensing information concerning large groups of allied facts into brief and compendious expressions suitable for discussion --Sir Francis Galton (1822-1911) - - = = Y i N i X i S Y Y S X X N r 1 1 X Y The Pearson Product Moment Correlation Coefficient. E.G. X could be father’s height and Y could be son’s height
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6 Theory of Measurement Errors Quetelet (1796-1874). An anthropometrician,
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This note was uploaded on 12/05/2010 for the course PSYCH Psy Beh F2 taught by Professor Williamh.batchelder during the Fall '10 term at UC Irvine.

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HPSLEC162010 - AGENDA I. History and Nature of Intelligence...

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