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Multiple Choice
Which of the following statements about validity in psychological research is true?
A
Validity is only concerned with the consistency of test results over time.
B
Validity refers to the extent to which a test measures what it claims to measure.
C
Validity is not important if a study has a large sample size.
D
Validity and reliability mean exactly the same thing in research.
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Verified step by step guidance
1
Understand the concept of validity in psychological research: Validity refers to how well a test or study measures what it is intended to measure.
Recognize that validity is different from reliability. Reliability concerns the consistency or stability of test results over time, while validity concerns the accuracy and truthfulness of the measurement.
Evaluate each statement by comparing it to the definitions of validity and reliability. For example, the statement 'Validity is only concerned with the consistency of test results over time' confuses validity with reliability.
Consider the importance of validity regardless of sample size. A large sample size does not compensate for a lack of validity in the measurement or study design.
Conclude that the true statement is the one that correctly defines validity: 'Validity refers to the extent to which a test measures what it claims to measure.'