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Sequential Random Questions
Professional Education
Topic: Assessment of Student Learning
Difficulty Rating:
Which measure of central tendency is most reliable to get a picture of the class performance whose raw scores in a quiz are: 97, 95, 85, 86, 77, 75, 50, 10, 5, 2, 1?
a) Mode
b) None. It is best to look at individual scores
c) Mean
d) Median
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Rationale:
This rationale was generated by an AI
This question evaluates understanding of measures of central tendency in the context of a specific dataset. Given the wide range of scores and the presence of extreme values (particularly on the lower end), the median is the most reliable measure to represent the class performance. The median is less affected by the extreme low scores (10, 5, 2, 1) than the mean would be. The mode isn't useful here as there are no repeated scores. While looking at individual scores provides the most detailed information, if a single measure is needed to represent the class performance, the median is the most appropriate choice in this case.