Understanding Validity and Reliability in Measurement

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Questions and Answers

What does validity refer to?

  • The extent to which a test appears to measure what it claims to measure based on face value
  • The degree to which an instrument measures without error
  • The degree to which an instrument measures what it is intended to measure (correct)
  • The extent to which the measurement covers all aspects of the concept being measured

If a thermometer is used to check blood pressure, it is considered:

  • An accurate instrument
  • A reliable instrument
  • An invalid instrument (correct)
  • A valid instrument

Which type of validity refers to the extent to which a test appears to measure what it claims to measure based on face value?

  • Face validity (correct)
  • Concurrent validity
  • Content validity
  • Predictive validity

What type of validity refers to the extent to which the measurement covers all aspects of the concept being measured?

<p>Content validity (D)</p> Signup and view all the answers

In the context of validity, what does construct validity refer to?

<p>The extent to which a test accurately predicts future behavior or outcomes (B)</p> Signup and view all the answers

What type of validity refers to the extent to which a test accurately predicts future behavior or outcomes?

<p>Predictive validity (B)</p> Signup and view all the answers

Which type of validity evaluates how accurately a test measures the outcome it was designed to measure?

<p>Criterion-related validity (D)</p> Signup and view all the answers

When the scores of a test and the criterion variables are obtained at the same time, which type of validity is being used?

<p>Concurrent validity (D)</p> Signup and view all the answers

Which type of validity is used when the criterion variables are measured after the scores of the test?

<p>High predictive validity (D)</p> Signup and view all the answers

What type of validity is the extent to which measures of the same or similar constructs actually correspond to each other?

<p>Convergent validity (A)</p> Signup and view all the answers

Which type of validity shows that two measures that are not supposed to be related are in fact, unrelated?

<p>Discriminant validity (A)</p> Signup and view all the answers

What does face validity assess in a test?

<p>The content of the test appearing suitable to its aims (D)</p> Signup and view all the answers

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Study Notes

Validity

  • Validity refers to the extent to which a test or measurement accurately measures what it claims to measure.

Types of Validity

  • Face Validity: refers to the extent to which a test appears to measure what it claims to measure based on face value.
  • Construct Validity: refers to the extent to which a test measures the underlying concept or construct being measured.

Types of Validity (continued)

  • Content Validity: refers to the extent to which the measurement covers all aspects of the concept being measured.
  • Criterion Validity: refers to the extent to which a test accurately predicts future behavior or outcomes.

Evaluating Validity

  • Concurrent Validity: evaluates how accurately a test measures the outcome it was designed to measure, and the scores of the test and the criterion variables are obtained at the same time.
  • Predictive Validity: evaluates how accurately a test predicts future outcomes, and the criterion variables are measured after the scores of the test.

Inter-Method Validity

  • Convergent Validity: refers to the extent to which measures of the same or similar constructs actually correspond to each other.
  • Discriminant Validity: shows that two measures that are not supposed to be related are in fact, unrelated.

Face Validity

  • Face validity assesses whether a test appears to measure what it claims to measure based on face value.

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