Methods of Estimating Reliability and Validity in Research
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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</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</p> Signup and view all the answers

    What does low internal consistency suggest about two results?

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

    What does reliability refer to in measurement?

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

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

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

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

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

    What does inter-rater reliability assess?

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

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