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A student researcher collects self-esteem scores from a small study group. The recorded scores are: 2525, 2222, 1818, 2222, 3030, 2222, and 1515. Apply the definition of a mode to identify the mode of this dataset and justify your answer based on score frequencies.

Question: A student researcher collects self-esteem scores from a small study group. The recorded scores are: 2525, 2222, 1818, 2222, 3030, 2222, and 1515. Apply the definition of a mode to identify the mode of this dataset and justify your answer based on score frequencies.

Sample answer: The mode of this dataset is 2222. This is because the score of 2222 occurs three times, which is more frequent than any other score in this distribution (where all other scores occur only once).

Key points:

  • The mode of the dataset is 2222.
  • The score of 2222 occurs more frequently (three times) than any other score in the dataset.

Rubric: To receive full credit, the student must: 1) State that the mode is 2222; and 2) Justify this by indicating that 2222 appears three times, which is the highest frequency of any score in the dataset.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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