Dispersion: Range, Interquartile Range, & Semi-Interquartile Range

In this video I explain simple ways of describing the dispersion of data that can be ordered or ranked. These are the range, the interquartile range, and the semi-interquartile range. I also briefly describe a more precise method for calculating the range for a continuous variable, though this method is not common. I explain each of these measures of dispersion, their strengths and weaknesses, and what they can tell us about our data.

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Note: For simplicity I calculated an exclusive interquartile range for this odd-numbered set of data, though IQR could also be calculated using an inclusive method, which I explain in this video: ua-cam.com/video/q9YupUH37NQ/v-deo.html

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Thank you so much for this sir! This is so helpful. God bless you! ❤

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[@PsychExamReview]

I'm glad to hear that my playlists are helping you, thanks for letting me know. You can find me on twitter @psychexamreview or you can email me at psychexamreview at gmail.com if you have questions. All the best in preparing for your exams!

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