Case Study

Identify and explain the two APA formatting errors in the student's draft regarding narrative and parenthetical statistics. Then, write a fully corrected version of the sentence.

Case context: A student researcher is writing the draft of their psychology research paper's Results section. They write: 'The participants had a moderate negative relationship, with an rr of .27-.27, and the experimental group scored a mean of 23.4023.40 (standarddeviation=9.33standard deviation = 9.33).'

Question: Identify and explain the two APA formatting errors in the student's draft regarding narrative and parenthetical statistics. Then, write a fully corrected version of the sentence.

Sample answer: The two errors in the sentence are: 1. The abbreviation 'r' is used within the narrative flow of the sentence ('with an rr of .27-.27'). In narrative sentences, statistical terms must be spelled out (e.g., 'correlation'). 2. The term 'standard deviation' is spelled out inside the parenthetical presentation ('(standarddeviation=9.33standard deviation = 9.33)'). In parenthetical reports, statistical terms must be abbreviated (e.g., 'SDSD'). A corrected version of the sentence is: 'There was a moderate negative correlation (r=.27r = -.27), and the experimental group had a mean of 23.4023.40 (SD=9.33SD = 9.33).'

Key points:

  • Diagnoses that the abbreviation 'r' is incorrect in the narrative and should be spelled out (e.g., 'correlation').
  • Diagnoses that the term 'standard deviation' inside the parentheses is incorrect and must be abbreviated as 'SD'.
  • Provides a grammatically correct and properly formatted APA results sentence with the corrected statistical terms and abbreviations.

Rubric: The response must identify the two distinct APA errors: using a statistical abbreviation in a narrative sentence, and spelling out a statistical term in a parenthetical report. The explanation must justify why these are errors under APA guidelines, and a corrected sentence showing the proper implementation of both rules must be provided.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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