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Series on Easy-to-Confuse Statistical Concepts

by Karen Grace-Martin Leave a Comment

There are many concepts in statistics that are easy to confuse.

Sometimes the problem is the terminology. We have a whole series of articles on Confusing Statistical Terms.

But in these cases, it’s the concepts themselves. Similar, but distinct concepts that are easy to confuse.

Some of these are quite high-level, and others are fundamental. For each article, I’ve noted the Stage of Statistical Skill at which you’d encounter it.

So in this series of articles, I hope to disentangle some of those similar, but distinct concepts in an intuitive way.

Stage 1 Concepts

The Difference Between:

  • Association and Correlation
  • A Chi-Square Test and a McNemar Test

Stage 2 Concepts

The Difference Between:

  • Interaction and Association
  • Crossed and Nested Factors
  • Truncated and Censored Data
  • Eta Squared and Partial Eta Squared
  • Missing at Random and Missing Completely at Random Missing Data

Stage 3 Concepts

The Difference Between:

  • Relative Risk and Odds Ratios
  • Confirmatory and Exploratory Factor Analysis
  • Random Factors and Random Effects
  • Link Functions and Data Transformations
  • Clustered, Longitudinal, and Repeated Measures Data

 

Are there concepts you get mixed up? Please leave it in the comments and I’ll add to my list.


Related Posts

  • The Difference Between Association and Correlation
  • The Difference Between Random Factors and Random Effects
  • The Difference Between Link Functions and Data Transformations
  • The Difference Between Logistic and Probit Regression

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