The results for a certification exam were revealed in percentage and percentile. The results for one of the attendees was: 75%, 90th percentile. What is the value in sharing the percentile score?
A.
The percentile score provides value by assessing the attendee’s score against the average score for that exam
B.
While the exam score is an objective score, the percentile is a relative score that assesses the attendee’s score against the highest possible score
C.
By ranking, it provided additional insight on how the attendee performed in comparison to other attendees
D.
The percentile score does not add any additional value in assessing the attendee’s performance
C - CBDA guide page 122: Measures of central tendency/location: This is the most natural way to summarize data by saying where the data is most concentrated. Mean (average) is the sum of values over the number of items.
The percentile score (90th percentile) ranks the attendee's performance relative to others who took the exam. This provides additional context beyond just the raw percentage score, indicating how well the attendee performed compared to their peers. This ranking helps in understanding where the attendee stands in relation to the overall group of exam takers.
If your percentile is 75%, it means you scored higher than 75% of the other exam takers. In other words, only 25% of the exam takers scored higher than you.
Percentile ranks are a way to understand how your score compares to others: the higher your percentile, the better your performance relative to the group.
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