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Week 6

Statistical Mistakes

➤ This week we will learn about statistical mistakes to avoid when conducting analyses.

Before Class

Project Progress

👥 Meet with your group and be prepared to answer the following questions about your project:

  • Write a list of the research questions your investigator had.
  • For each item on the list, which variable(s) will you use?
  • Group these variables into exposure vs. outcome.

Statistical Mistakes

📖 Ten Common Statistical Mistakes to Watch Out For When Writing or Reviewing A Manuscript (30 minutes)

Recall the common statistical mistakes:

  • Adequate control condition/group
  • Direct comparisons between two effects
  • Inflating the units of analysis
  • Spurious correlations
  • Use of small samples
  • Circular analysis
  • p-hacking
  • Multiple comparisons
  • Over-interpreting non-significant results
  • Correlation and causation

📖 A Deeper Dive into Statistical Mistakes (3 minutes)

In Class

In this week's class, be ready to identify statistical mistakes for several scenarios.

Reflection

Which of these statistical mistakes do you see being made by others most often?