Methods of Estimating Reliability and Validity in Research

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Questions and Answers

Which type of validity assesses the adherence of a measure to existing theory and knowledge of the concept being measured?

  • Construct validity (correct)
  • Internal validity
  • Criterion validity
  • Content validity

If a self-esteem questionnaire is assessed by measuring other traits related to self-esteem, what type of validity is being examined?

  • Construct validity (correct)
  • Internal validity
  • Criterion validity
  • Content validity

What does content validity assess in a measurement?

  • Adherence to existing theory
  • Coverage of all aspects of the concept being measured (correct)
  • Correspondence to other valid measures
  • Reliability over time

In the context of a language test, what would indicate a lack of content validity?

<p>Exclusion of key components acknowledged by experts (A)</p> Signup and view all the answers

Which type of evidence can be used to estimate the validity of a measurement?

<p>Both expert judgment and statistical methods (B)</p> Signup and view all the answers

What does low internal consistency suggest about two results?

<p>Divergence in reliability (B)</p> Signup and view all the answers

What does reliability refer to in measurement?

<p>How consistently a method measures something (A)</p> Signup and view all the answers

If a thermometer consistently shows the same temperature reading for a liquid sample under identical conditions, what does this indicate about the measurement?

<p>It has high reliability (A)</p> Signup and view all the answers

When research has high validity, it means that the results:

<p>Correspond to real properties and characteristics (B)</p> Signup and view all the answers

If several different doctors using the same symptom questionnaire with a patient provide different diagnoses, what does this suggest about the questionnaire?

<p>It has low reliability (B)</p> Signup and view all the answers

Which type of reliability is assessed when different raters provide different judgments on the same subject?

<p>Inter-rater reliability (D)</p> Signup and view all the answers

If a thermometer shows different temperatures each time for the same liquid sample under controlled conditions, what can be inferred about the thermometer's measurements?

<p>It is not reliable (B)</p> Signup and view all the answers

What aspect of a measure does test-retest reliability assess?

<p>The consistency of a measure across time (B)</p> Signup and view all the answers

If different examiners submit substantially different results for the same project, what type of reliability is likely low?

<p>Inter-rater reliability (A)</p> Signup and view all the answers

Which type of reliability focuses on the consistency of a measurement itself?

<p>Internal consistency (C)</p> Signup and view all the answers

What does inter-rater reliability assess?

<p>The consistency of a measure across different raters (C)</p> Signup and view all the answers

If there is a strong correlation between two halves of a questionnaire measuring self-esteem, what type of reliability is being demonstrated?

<p>Internal consistency (B)</p> Signup and view all the answers

Which type of reliability assesses if you get the same results when you repeat a measurement?

<p>Test-retest reliability (A)</p> Signup and view all the answers

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