To Measure the Validity of a Test, an Investigator Might

question 114

Multiple Choice

To measure the validity of a test, an investigator might determine whether

• A) the people who score high on a test one time will score high again the next time they take it.
• B) the test provides scores that are equally fair to all the people who take it.
• C) the scores provide a useful prediction of some other behavior.
• D) the test scores follow the normal distribution.

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, commonly used to measure how accurately a sample represents a population.

Null Hypothesis

The hypothesis that there is no significant difference or effect, and any observed difference is due to sampling or experimental error.

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter.