Short Answer

A researcher is designing a slide to present a perfect positive relationship (r=+1.00r = +1.00) between study time and test scores. Apply the visual benchmarks for Pearson's rr to describe how the researcher should draw the data points on the slide's scatterplot.

Question: A researcher is designing a slide to present a perfect positive relationship (r=+1.00r = +1.00) between study time and test scores. Apply the visual benchmarks for Pearson's rr to describe how the researcher should draw the data points on the slide's scatterplot.

Sample answer: To represent a perfect positive relationship (r=+1.00r = +1.00), the researcher should draw the points so that they fall exactly on a straight, upward-sloping diagonal line.

Key points:

  • Points must fall exactly on a line.
  • The line must be an upward-sloping diagonal.

Rubric: The answer must apply the visual benchmark for r=+1.00r = +1.00 by stating that the points must fall exactly on an upward-sloping diagonal line.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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