stem-and-leaf plot

a graphical method of presenting data that have been measured on an interval scale. A basic stem-and-leaf plot comprises two columns separated by a vertical line; the right column lists the last digit of each data point (the “leaves”) and the left column lists all of the other digits from each data point (the “stems”). Each stem is listed only once and no numbers are skipped, even if that means some stems have no leaves. The leaves are listed in increasing order of magnitude in a row to the right of each stem. For example, consider the following hypothetical values for participants measured on a particular variable:
55 57 58 59 74 75 77 79 79 83 83 86 87 92 95 99 107
The stem-and-leaf plot for these values is:

Also called stemplot.

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Psychology term of the day

February 20th 2025

tickle experience

a sensation produced by impulses from adjacent skin receptors that are stimulated lightly in rapid succession. It is assumed that the receptors involved are also responsible for the sensations of itch and pain and that the method of stimulation accounts for the different sensations.