Short Answer

A researcher is manually calculating the significance of a sample correlation coefficient using a reference table that only lists critical values for the tt distribution. Apply the concepts of correlation significance testing to describe the mathematical step the researcher must take to use this table.

Question: A researcher is manually calculating the significance of a sample correlation coefficient using a reference table that only lists critical values for the tt distribution. Apply the concepts of correlation significance testing to describe the mathematical step the researcher must take to use this table.

Sample answer: The researcher must mathematically convert the sample correlation coefficient into a tt score. Once converted, they can compare this tt score against the critical values in the tt distribution table to conduct a standard tt-test.

Key points:

  • Mathematically convert the sample correlation coefficient into a tt score.
  • Use the converted tt score to conduct a standard tt-test.
  • Compare the calculated tt score to the critical values of tt in the reference table.

Rubric: The answer must state that the researcher needs to mathematically convert the correlation coefficient into a tt score. It should also mention using this tt score to perform a standard tt-test with the critical values in the table.

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Updated 2026-05-26

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Research Methods in Psychology - 4th American Edition @ KPU

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