Questions and Answers
What is validity?
Accuracy of test in measuring what it is intending to measure.
Which of the following are types of validity? (Select all that apply)
What does face validity refer to?
Whether a test looks like it is measuring what it should measure.
Face validity is determined by statistical measures.
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What is content validity?
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What is criterion validity?
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What are the two types of criterion validity?
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What is construct validity?
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Construct validity includes only convergent validity.
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What does bandwidth refer to in testing?
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Higher group ______ will result in less correlation.
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What is the role of empirical methods in evaluating content validity?
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What does criterion contamination refer to?
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What are the methods to assess construct validity?
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Study Notes
Overview of Validity
- Validity refers to the accuracy of a test in measuring what it intends to measure.
- Several types of validity exist: face, content, criterion, and construct validity.
Types of Validity
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Face Validity:
- Assesses if a test appears to measure what it should based on subjective perception.
- Influenced by participant rapport and cooperation, affecting test seriousness.
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Content Validity:
- Evaluates whether test items adequately represent the area of measurement.
- Involves content representativeness and relevance, necessitating expert input.
- Evaluated through subjective expert judgment and empirical methods, like factor analysis.
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Criterion Validity:
- Determines correlation with another validated test in similar areas.
- Types include:
- Predictive Validity: Evaluates future predictions.
- Concurrent Validity: Assesses present correlations.
- Assessed using Pearson or Spearman correlation methods.
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Construct Validity:
- Examines how accurately a test reflects theoretical constructs or frameworks.
- Types include:
- Convergent Validity: Correlation with expected variables.
- Discriminant Validity: Lack of correlation with unrelated variables.
- Methods to assess include correlation, factor analysis, and internal consistency.
Aspects of Validity
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Bandwidth Fidelity:
- Bandwidth refers to the range of applicability of a test (broad vs. narrow).
- Fidelity indicates the thoroughness of the test; increased bandwidth can reduce fidelity.
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Sample Considerations:
- Group homogeneity impacts correlation; more homogeneity can lead to reduced correlation.
- Cross-cultural validity ensures findings are stable and applicable across diverse cultures.
Interpretation of Validity
- Validity relies on correlation, but no definitive score indicates "good" validity.
- Variance (correlation coefficient squared) helps understand variations explained by the test versus other factors.
- Regression equations and expectancy tables may be used for predicting relationships between tests.
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Description
Explore the critical concept of validity in psychological tests through this quiz. Understand the different types of validity including face, content, criterion, and construct validity. Each type plays a vital role in ensuring the accuracy of psychological assessments.
