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

QuickTime™ and a decompressor

are needed to see this picture.

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

QuickTime™ and a decompressor

are needed to see this picture.

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

= ??????

QuickTime™ and a decompressor

are needed to see this picture.

QuickTime™ and a decompressor

are needed to see this picture.

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