Measuring Intelligence

2 Types of Intelligence Tests

Stanford-Binet Scales and Wechsler Scales

What’s the Stanford-Binet scale?

Created the concept of a yielded mental age, the IQ at which the child functions at. Measures verbal ability

What’s the Wechsler Scale?

Contains studies that measure verbal and performative scales. Has Verbal, Performance tests and a test of the 2 combined

Reliable (Psych Test) 

A test’s consistency (does the test yield similar results?) 

Test-retest reliability 

Comparing test scores by same person but different times. Scores can either improve or stay the same. 

Valid (Psych Test)

Does it measure what it’s supposed to measure?

An example of Valid

There’s a correlation between SAT scores and first-year college grades.

Stereotype threat

When somebody is worried about reinforcing a negative stereotype to the point where they now do bad because of it

Stereotype lift 

When somebody thinks about reinforcing a positive stereotype to the point where they now do good because of it

Flynn effect

Observed trend of increasing IQ test scores within generations