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Correlation and Causation

Correlation means there's a relationship or pattern between two variables. For example, if studies show that students who eat breakfast tend to have higher grades, there is a correlation between eating breakfast and getting higher grades.

Sometimes correlation can be explained by one variable causing the other, but sometimes it can be explained by both variables being affected by something else.

For example, it is possible that eating breakfast causes better grades, but it could be that students who eat breakfast also have other healthy habits or supportive home environments that contribute to their academic success.

As another example, organic food consumption and autism diagnoses have both increased over the last 30 years. There is a correlation between these two variables. However, it would be a mistake to assume from this data that organic foods cause autism.

Assuming that correlation entails causation is a common mistake in data analysis. It's important to look for additional evidence and consider other factors that might influence the results.

Back to the Data Analysis Handbook


Courses

Fallacy Detectors Part 1

Fallacy Detectors Part 1

Develop the skills to tackle logical fallacies through a series of 10 science-fiction videos with activities. Recommended for ages 8 and up.

US$15

A Statistical Odyssey

A Statistical Odyssey

Learn about common mistakes in data analysis with an interactive space adventure. Recommended for ages 12 and up.

US$15

Symbolic Logic for Teens Part 1

Symbolic Logic for Teens Part 1

Learn how to make sense of complicated arguments with 14 video lessons and activities. Recommended for ages 13 and up.

US$15

Emotional Intelligence

Emotional Intelligence

Learn to recognize, understand, and manage your emotions. Designed by child psychologist Ronald Crouch, Ph.D. Recommended for ages 5 and up.

US$15

Worksheets

Symbolic Logic Worksheets

Symbolic Logic Worksheets

Worksheets covering the basics of symbolic logic for children ages 12 and up.

US$5

Elementary School Worksheets and Lesson Plans

Elementary School Worksheets and Lesson Plans

These lesson plans and worksheets teach students in grades 2-5 about superstitions, different perspectives, facts and opinions, the false dilemma fallacy, and probability.

US$10

Middle School Worksheets and Lesson Plans

Middle School Worksheets and Lesson Plans

These lesson plans and worksheets teach students in grades 5-8 about false memories, confirmation bias, Occam's razor, the strawman fallacy, and pareidolia.

US$10

High School Worksheets and Lesson Plans

High School Worksheets and Lesson Plans

These lesson plans and worksheets teach students in grades 8-12 about critical thinking, the appeal to nature fallacy, correlation versus causation, the placebo effect, and weasel words.

US$10

Statistical Shenanigans Worksheets and Lesson Plans

Statistical Shenanigans Worksheets and Lesson Plans

These lesson plans and worksheets teach students in grades 9 and up the statistical principles they need to analyze data rationally.

US$10