When a Test Has Been Shown to Be Measuring What

question 41

Multiple Choice

When a test has been shown to be measuring what it purports to measure, then we may assume that the test is

• A) reliable
• B) valid
• C) containing only homogeneous items
• D) containing only heterogeneous items

---

Definitions:

Confidence Interval

An estimated range of values calculated from the statistics of observed data, indicating where a true parameter of a population is likely to exist with a specified level of certainty.

Sample

A subset of individuals or events from a larger population used to conduct statistical analysis.

Mean

The average value of a set of numbers, calculated by dividing the sum of all numbers in the set by the quantity of numbers.

Hypothesis Testing

A method of statistical inference used to decide if data supports a specific hypothesis.