Internal and External Validity Quiz

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Questions and Answers

Which of the following is a threat to internal validity?

Ecological validity

Population validity

Selection bias (correct)

Temporal validity

What does Cronbach's alpha measure?

Temporal validity

Internal consistency reliability (correct)

External validity

Population validity

Which test is specifically applied when dealing with tests that involve dichotomous response categories?

Testing effects

Maturation

Cronbach's alpha

KR-20 (correct)

What does external validity concern?

Generalizability of study findings to other populations, settings, or times Signup and view all the answers

What does KR-20 assess?

Internal consistency reliability for tests with dichotomous items Signup and view all the answers

What do higher values of Cronbach's alpha indicate?

Greater internal consistency Signup and view all the answers

Which of the following is a threat to external validity?

Temporal validity Signup and view all the answers

Which type of validity assesses whether a measurement reflects the entire range of the construct being measured?

Content validity Signup and view all the answers

What does face validity assess?

The extent to which a measurement appears to measure what it claims to measure based on its face value Signup and view all the answers

Which type of validity involves relating an instrument for data collection to a theoretical framework and usually involves hypothesis testing?

Construct validity Signup and view all the answers

What does concurrent validity compare the accuracy of a data collection instrument with?

A gold standard Signup and view all the answers

In the development of a mathematics test, what would content validity involve?

Ensuring that the test covers a representative sample of the math skills taught in the curriculum Signup and view all the answers

What does predictive validity measure?

The ability of a test to predict outcomes at a future time Signup and view all the answers

Which type of validity indicates how well the scale measures the construct it was designed to measure?

Construct validity Signup and view all the answers

What is the extent to which a test measures a theoretical construct or trait and attempts to validate a body of theory underlying the measurement and testing of the hypothesized relationships?

Construct validity Signup and view all the answers

Study Notes

Threats to Validity

History, maturation, testing, and instrumentation are threats to internal validity.
Selection, mortality, and extraneous variables are threats to external validity.

Reliability Measures

Cronbach's alpha measures the internal consistency of a test or scale.
Higher values of Cronbach's alpha indicate higher reliability.
KR-20 assesses the reliability of a test with dichotomous response categories.

Types of Validity

External validity concerns whether the results can be generalized to other populations and settings.
Content validity involves ensuring that a test measures the intended construct, e.g., a mathematics test should include relevant mathematical concepts.
Face validity assesses whether a test appears to measure what it claims to measure.
Construct validity assesses whether a measurement reflects the entire range of the construct being measured.
Concurrent validity compares the accuracy of a data collection instrument with a criterion measure at the same time.
Predictive validity measures how well a test predicts a future outcome or criterion.

Validity and Theory

Construct validity involves relating an instrument for data collection to a theoretical framework and usually involves hypothesis testing.
It indicates how well the scale measures the construct it was designed to measure and attempts to validate a body of theory underlying the measurement and testing of the hypothesized relationships.

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Description

Test your understanding of internal and external validity with this quiz. Explore the definitions of internal validity and common threats to it, such as selection bias and testing effects. Then, delve into the concept of external validity and its implications for the generalizability of study findings.