Validity
The extent to which variables measure what they are supposed to measure
What is construct validity?
A test that measures mastery without time restraint
What is a power test?
did research and concluded that intelligence was normally distributed and primarily genetic
Who is Galton?
individual’s performance is compared to specific criterion or standard
What is criterion-referenced?
Increasing a test's reliability
What is increasing test length?
The extent to which a test samples the behavior that is of interest
What is content validity?
A test that compares traits within the individual, not compared to another person
What is an ipsative measure?
isolated 120 factors which added up to the intelligence. He also is remembered for his thoughts on convergent and divergent thinking.
Who is JP Guilford?
100, 15
What are the mean and standard deviation of IQ?
measures whether each item on the test is measuring the same thing as every other item
What is Kuder-Richardson reliability?
How well the test compares to other instruments that are intended for the same purpose
What is concurrent validity?
A test that has versions for various age brackets or levels of education
What is a vertical test?
Created the first intelligence test
Who are Binet and Simon?
statistical technique used to examine consistency between two sets of scores, etc.
What is correlation?
a test with 2 versions or forms that are interchangeable
What are parallel forms?
A test's ability to predict future performance (e.g. GRE)
What is predictive validity?
each item is independent from all other items
Created 16 personality factor questionnaire
Who is Cattell?
discriminate children without an intellectual disability from children with an intellectual disability so they could be taught separately
What is the purpose of the first IQ test?
reliability coefficient acceptable for making important decisions about people
What is 0.95?
A test becomes more valid as it is refined
What is incremental validity?
A test that measures various factors during the same testing procedure
What is a horizontal test?
Standardized (Americanized) the Stanford-Binet test
Who is Lewis Termin?
68%, 95%, 99.5%
What are 1, 2, and 3 standard deviations from the mean on a normal distribution?
Provides estimate of range of scores if someone were to repeatedly take instrument
What is the standard error of measurement?