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Goal(s): When evaluating a Pearson's r value, gauge its strength as strong, medium, or weak. Increase experience with correlations reported in the news.
How: You will be shown two examples at a time, drawn from a collection of Pearson's r values and scatter plots. Select the weaker correlation. Make 30 quick decisions, with immediate feedback.
Site: P2L.io
About
About
Strength of Correlation. When determining the strength of a correlation, ignore the sign (positive or negative). Rather, the weaker the correlation, the closer the Pearson's r value will be to zero. For a Pearson's r value of zero, there is no relationship between the two variables (e.g., number of letters in your name and your height). The stronger the correlation, the closer Pearson's r will be to either +1.00 or -1.00.
Strong Correlation
Strong Correlation
|r| ≥ .70
The Pearson r value, ignoring the sign, will be .70 or greater.
Moderate Correlation
Moderate Correlation
.30 < |r| < .70
The Pearson r value, ignoring the sign, will be more than .30 and less than .70.
This article labels the correlation as "moderate positive" correlation.
The correlation might have been any value of Pearson's r between .31 and .69.
Weak Correlation
Weak Correlation
|r| ≤ .30
The Pearson r value, ignoring the sign, will be less than or equal to .30.
Game
Optional: Earning Class Credit
To earn credit for this activity:
Click the 'Accommodations' button on the game menu.
Using the number pad (in the Accommodation dialog box), type the passcode provided by your instructor.
Click the 'Continue' button. Doing so will return you back to the game menu.
Then click 'Start' to begin the game.
When you complete the task with a score of 85% or greater, you will be given a completion code. To view this completion code, click on the 'Completion Code' button.
To get credit for having completed the activity, provide the completion code as your answer (e.g., to a quiz question). If the completion code is not yet available (e.g., performance was less than 85%), then click the 'Continue' button to re-do the activity.
Accommodations include:
Screen Reader (click the 'Screen Reader' button)
Unlimited decision time (e.g., Click the 'Accommodations' button, then type #17 by itself or at the end of a passcode. Click 'Continue').
Please notify your instructor if requesting these accommodations.
Instructors can modify games and set up quizzes rather easily. Check out game modifications.
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