An investigator is pilot testing a new survey instrument As

An investigator is pilot testing a new survey instrument. As part of the validation process, he administers the survey to 25 student volunteers. A month later, he administers it to the same 25 volunteers. What was he evaluating?

Select one:

Content validity

Internal consistency

Stability

Equivalency

Criterion-related validity

Construct validity

Solution

An investigator is pilot testing a new survey instrument. As part of the validation process, he administers the survey to 25 student volunteers. A month later, he administers it to the same 25 volunteers. What was he evaluating?

Select one:

Content validity

Internal consistency

Stability

Equivalency

Criterion-related validity

Construct validity

Answer: Stability

The test-retest reliability method is one of the simplest ways of testing the stability and reliability of an instrument over time.