Biostatistics mnemonic

Choice of significance test by data type

The mnemonic

Chi for counts, T for two means, ANOVA for many

What each word stands for

  • ChiChi-square for proportions in categories
  • Tt-test for two means
  • ANOVAAnalysis of variance for three or more means

Why it matters clinically

Helps pick the test quickly in a study design question.

Where it stops being reliable

Assumes normally distributed data; non-parametric alternatives apply otherwise.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

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Common questions

What is the Biostatistics mnemonic?

Chi for counts, T for two means, ANOVA for many. It helps you recall: Choice of significance test by data type.

What does "Chi" stand for?

Chi-square for proportions in categories

What does "T" stand for?

t-test for two means

What does "ANOVA" stand for?

Analysis of variance for three or more means

What are all the parts of the Chi for counts, T for two means, ANOVA for many mnemonic?

Chi: Chi-square for proportions in categories; T: t-test for two means; ANOVA: Analysis of variance for three or more means.

Which topic does this mnemonic belong to?

It belongs to Biostatistics in PSM.

Where does this mnemonic stop being reliable?

Assumes normally distributed data; non-parametric alternatives apply otherwise.

How is this useful clinically?

Helps pick the test quickly in a study design question.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a PSM question about Biostatistics.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.