Score Reporting and Interpretation Flashcards
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Read the first 7 Score Reporting and Interpretation flashcards as text
A test-taker receives a percentile rank of 82. What does this score indicate?
Answer: The test-taker scored higher than 82% of the norm group
A percentile rank of 82 means the examinee scored higher than 82% of the individuals in the reference norm group.
What is a raw score in the context of educational and psychological testing?
Answer: The total number of items answered correctly without transformation
A raw score is simply the unadjusted count of correct responses before any statistical transformation is applied.
A psychometrician converts raw scores to a scale with a mean of 500 and standard deviation of 100. What type of score is being created?
Answer: Standard scale score
A standard scale score is a transformed score placed on a fixed scale with a defined mean and standard deviation, such as 500/100 used in many large-scale assessments.
What is the primary purpose of the Standard Error of Measurement (SEM) in a score report?
Answer: To estimate the range within which a test-taker's true score likely falls
The SEM quantifies measurement error, allowing practitioners to construct confidence intervals around an observed score to estimate where the true score likely lies.
In score reporting, what does a 'norm group' refer to?
Answer: The reference population used to give meaning to a score
A norm group is the representative sample of individuals whose scores serve as a reference for interpreting an examinee's performance.
Which score transformation preserves the rank order of examinees and is linear in nature?
Answer: Linear standard score (z-score)
A linear z-score transformation preserves the original shape of the distribution and maintains equal-interval rank ordering, unlike normalized scores that reshape the distribution.
A score report includes a confidence band around a test-taker's score. What does this band represent?
Answer: The interval within which the test-taker's true score likely falls given measurement error
A confidence band around an observed score reflects the uncertainty due to measurement error and indicates the likely range of the examinee's true score.