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ASSESSING INTELLIGENCEPETER LEE AND SEJIN PAIK
How Do We Measure Intelligence?
WAIS (Wechsler Adult Intelligence Scale) - widely used intelligence test that contains two parts
Provides clues to cognitive strengths that teachers or employers use to evaluate people
1st Part: Verbal
General Information
Similarities
Arithmetic Reasoning
Vocabulary
Comprehension
Digit Span
2nd Part:Performance
Picture Completion
Picture Arrangement
Block Design
Object Assembly
EXTREMES OF INTELLIGENCE
(watch video)
Mental Retardation
Condition of limited mental ability
Intelligence score is lower than 70
Difficulty in adapting to the demands of life
varies from mild to profound
Down Syndrome
A physical disorder that causes mental retardation
An extra chromosome in one’s genetic makeup
Principles of Test Construction
Psychological Tests
Aptitude Tests
Aptitude = natural ability to do something
Achievement Tests
Achievement = something that you’ve already done
3 Factors
Standardization
Reliability --> Validity
Standardization
Give a test to a group of people
Test other people group and use a scoring system to compare the scores
Most standardized tests have normal distribution shown by a normal curve
Ex: SAT / ACT
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Reliability
Reliable - consistently good in quality/performance (macbook dictionary)
Want the test to be reliable
If people take same / similar form of test again, scores should be same / similar
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Validity Does the test test what really it’s supposed to test?
How do you know if a test is valid?
Content validity - test tests behavior similar to what’s being tested
Ex: In a Driving test, they ask you to drive
Criterion - test is trying to determine something
Predictive Validity - test tries to predict the future
Ex: SATs and APs are taken mainly to predict how you might do in college academically
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Citations
http://upload.wikimedia.org/wikipedia/en/c/c2/Actgraph.jpg
http://z.about.com/d/collegeapps/1/G/P/-/-/-/sat_geeknerd99_flickr.jpg
http://www.mlmabsolute.com/images/choosing-thoughts-to-create-success.jpg