Chapter 1. The Correlation Coefficient: What’s in a Number?

Infographic

Scientific American: Psychology
Infographic Activity
true
true

The Correlation Coefficient: What’s in a Number?

A correlation indicates a relationship between two variables, such as the amount of time you spend studying and the grade you get on a test. This relationship is often indicated using a correlation coefficient, symbolized as r. To interpret the relationship using a correlation coefficient (r), ask yourself two questions:

(1) What is the direction of the relationship?

(2) What is the strength of the relationship?

A scatterplot helps us see what the relationship looks like. And remember, a correlation between two variables does not necessarily mean that one variable caused the change in the other variable.

An infographic is titled, The Correlation Coefficient: What’s in a Number?, that explains the direction and the strength of a correlation along with an example. You can read full description from the link below

The Correlation Coefficient: What’s in a Number?Enlarge figure Image description

Quiz

Quiz

Question 1.1

DlB4hJH3s3Tbsi2eNmnUcqm+BisXzGmhfFLPx1L+0qNyg/3fhYQ3vVOmQT8rObbc3/o3Sesq9W7jdi7RQ9+Kd0C9q3YkybPJyv5o/Xpj+PKzGfdJCl8tfiKTGh7kik/wAWlUxG82iV/rYQd1Yr3wfiuiQHaN4SqOTbIf6w2FnaI4V056U0AqCbKm8nHN/yMVrCjX4I53uj1uZpBRvCBg1SD7cHZxQ5kWVsxc6vIee8FjBV5RZNHNoObCJz/xMLD7Vfhle8VyTgA1/+vcaRGtfnWj254luog/8HzCKNysujtq+0/Xk05MtQR568uVvPifhSbKyJslCM3sMRKOsV3BGuwVkf2Cxe4nzlmMXg==
Correct.
Incorrect.

Question 1.2

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
Correct.
Incorrect.

Question 1.3

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
Correct.
Incorrect.

Question 1.4

UrjmQoWbP5krSBQvNaURL2iM00StE6CcM4gKhoKEUHN+FAg+pKg/O0ym2FHOcEBvqK1qxPZ+VY3ojxgJ0G3ZZ1OpM7P9DhbA/Y2Z6D+1zhT/RfLfNNByzPX997yHGkz8z3uMut0xZQKpkfe31l2eURqvT+NSm6XIs/pHuYF89sWhA8szpIYTo3VerMiP24XQXkJaR6vKuqyrjw6K8P/bEzZ+cLCC2rLe4o91o3pldHo1RpPfMsnIILVbcWvJGyuw3C0whpQKJUKEc66lJgop/sROsHL51XP+tm9CrZmCRAxhRYCHYaWXEh+MUe2X6Zz/YFc3JxmuyJLcl2zc9ot00UAFYbGptvxqk9KZdJb1+ko5YDDZC/PuNO2sk++MWF8T3yRLjmJFnc+shCTkVcU7JzNkQA7R6l79++sijH6VteCmXlPl8v3a+7SgNj55Uc5UmJ0uWwALvQUcEel7VaM42TmZHYEl4wmv8mLUdju9mamJzQQcO4ev9o1DIecD/gF8UC0hG9XfBek=
Correct.
Incorrect.

Question 1.5

lPru2TtgGho0flE0NQ6k1+1LcELfEsQX+UUo7fFbreYDSGYfryCVjmN2W26B70F33XDbr+g99daCoJ5+cXEY1WYRhNlUdbrK8lssA2dD4d7yvThAHP9Jg8iOoJ8IW1/nBAPLsfbn9gSN8D88FaVGEjYkOimxobKxA69KaE/I93qA8ytlMTcJKV4f6s3dJkONd1pgitv+vCL7eXeBbfX1L8fblXJ9oMpStmi6EiK5gwYvYWjua242bz3sTw+VOkOylImdjhhb/UBFN6ir
Correct.
Incorrect.

Question 1.6

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
Correct.
Incorrect.

Question 1.7

PpvdVzum7YnfolwNbmTvGtFrMMZrbh5mD+If2OcZcXjRtw6a44yQt0xavf+rG9xenbYekVyUqMunFeowad5UkSf2j027aXM82N/FodxNhMxSlVgAi6MnIyZ8SHPYSM65mWrA7nzAHaazdi5Q/O0j+K0+oxHwh+YEtZfmn8Lie4SgN1N8YxNEoJUgp5P5SWbkpIG8DXQcENXm8//YM5SxmWWZ9atZEHrDmWdUcyTjLKcCmGKKOVKlLKoEFp8bLWAA0ENCrTNwCMvgTD7dd0IJK2N1E7o9j922MV680tuRkdTjHLb9/eowrpLzbG42N9/P7tY2IT1CMDwSexE7fn+f5qDsv2ZyEGmFfdAe07R6eMZEdK8CBJkFQWMt1BM5sozd
Correct.
Incorrect.