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Case Study

Explain how the student's table and text design violate the core APA formatting principles for tables. How should these issues be corrected?

Case context: A psychology student is writing the results section of an empirical paper. They include a table presenting the mean (MM) and standard deviation (SDSD) for four experimental conditions. In the text preceding the table, they write: 'The mean for Group 1 was M=4.5M = 4.5 (SD=1.2SD = 1.2), the mean for Group 2 was M=5.2M = 5.2 (SD=1.1SD = 1.1)...' repeating every value shown in the table. Additionally, the table uses multiple nested vertical borders and does not define the abbreviations of the condition names, forcing readers to search the main text to understand the column labels.

Question: Explain how the student's table and text design violate the core APA formatting principles for tables. How should these issues be corrected?

Sample answer: The student's manuscript violates three key APA principles for tables. First, repeating every mean and standard deviation in the text violates the principle that tables must introduce new information rather than repeating text. Second, the use of nested vertical borders violates the principle of designing tables as simply as possible. Third, the lack of defined abbreviations means the table is not interpretable on its own, violating the principle of self-contained interpretability. To correct this, the student should summarize general trends in the text instead of repeating raw numbers, remove the vertical borders to simplify the design, and define all abbreviations in the table to make it self-explanatory.

Key points:

  • Repeating all statistical values in both the text and table violates the rule against redundancy.
  • Complex border layouts violate the principle of visual simplicity.
  • Omitting abbreviation definitions forces readers to look at the text, violating table independence.
  • Correcting the manuscript requires simplifying text summaries, removing excess borders, and adding explanatory table labels.

Rubric: Grading criteria: - 1 point: Identifies the violation of data repetition (table duplicates narrative text) and recommends summarizing trends instead. - 1 point: Identifies the simplicity violation (nested vertical borders) and recommends removing them. - 1 point: Identifies the self-interpretability violation (undefined abbreviations) and recommends adding definitions. - 1 point: Demonstrates understanding of how these concepts connect to overall reader comprehension.

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Updated 2026-05-26

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Research Methods in Psychology - 4th American Edition @ KPU

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