To Determine the Validity of an IQ Test, We Measure

question 154

Multiple Choice

To determine the validity of an IQ test, we measure

• A) whether the people who score high one time also score high another time.
• B) whether the mean score is the same for all groups.
• C) whether the items at the start of the test are easier or harder than those at the end.
• D) whether the scores correlate positively with grades in school.

---

Definitions:

Sample Size

The number of observations or replicates included in a statistical sample, which directly impacts the validity and accuracy of an analysis.

Level of Significance

Represents the critical value that delineates the boundary for rejecting the null hypothesis in hypothesis testing.

Power of Test

The probability that a statistical test will correctly reject a false null hypothesis, a measure of a test’s ability to detect an effect when there is one.

Specified Value

A particular or defined value, often set as a criterion or standard.