Child Psych

Category - Research & Stats

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Two students take a test. Student F scores in the 92^nd percentile and student K scores in the 47^th percentile. If three points are added to each student’s raw score, whose percentile will be more impacted?

Student K
Student F
Both students K and F
Neither student

Explanation

Answer: B - Student K’s percentile rank will be more greatly impacted by the addition of 3 points to the raw score. Percentile rank varies much more in the middle of a distribution than at either end (smaller fluctuations in raw score result in bigger fluctuations in percentile).

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