Short Answer

A clinical psychologist measures the reaction times of participants in a study. The highest score in the dataset is 2424 milliseconds and the lowest score is 1515 milliseconds. Apply the range formula to calculate the range of this dataset and write down the subtraction equation.

Question: A clinical psychologist measures the reaction times of participants in a study. The highest score in the dataset is 2424 milliseconds and the lowest score is 1515 milliseconds. Apply the range formula to calculate the range of this dataset and write down the subtraction equation.

Sample answer: Using the range formula, the range is calculated by subtracting the lowest score from the highest score: 2415=924 - 15 = 9 milliseconds.

Key points:

  • Apply the formula: range = highest score - lowest score.
  • Substitute the values: 241524 - 15.
  • Correctly calculate the final range as 99.

Rubric: The answer must show the correct subtraction equation (2415=924 - 15 = 9) and identify 99 as the calculated range of 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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