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Guessing Correlations

Rating: 4 stars
Used in Course: Used in course
Submitted by: Jay Holden (Staff), Apr 17, 2009
Comment: One of my students brought this correlations quiz to my attention. I used it in the classroom and had students pick their answers before reviewing the correct answers and the reasons for these answers. From now on I will attempt to use this in my teaching of statistics in psychology. My student's direct words on this L.O. were: "One concept I had trouble with in psychology was correlation. At first I was confused because the correlation can either be positive or negative; however, the sign does not represent strength. The sign just represents whether the correlation is inversely proportional or directly proportional. Also a correlation of -1 is stronger than a correlation of -.5. Normally a person would think -.5 is higher. This L.O. is a good tool because it gives the learner a visual. It is easier to picture the correlation by seeing a scatterplot. When the dots are closer together you know it is a correlation close to 1. If it is increasing it is positive and if it is decreasing it is negative. By looking at the different scatterplots and trying to guess the correlation the learner is able to grasp this concept better. The learner will be able to figure out which correlations are stronger much faster after using this L.O."
Time spent reviewing site: 1 hour