What Would Be One Way to Determine the Predictive Validity

question 148

Multiple Choice

What would be one way to determine the predictive validity of an IQ test?

• A) Find out whether or not the content of the test corresponds to theories of intelligence.
• B) Calculate the mean and the standard deviation for a large number of people who take the test.
• C) Find out whether people who get high scores the first time they take the test also get high scores when they take it a second time.
• D) Measure the correlation between performance on the test and performance in school.

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Definitions:

Sample size

The number of observations or data points collected from a population for a study.

Confidence interval

A set of values obtained from sample data which probably encompasses the value of an unspecified population parameter.

Average hourly income

The mean income earned by an individual per hour of work.

Standard deviation

A metric that calculates the degree of spread or variability within a data set.