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quartile

n. one of the three values in a series of values that divide it into equal-sized fourths. For example, the first (or lower) quartile of a distribution is the data value below which are the lowest 25% of scores, the second quartile is the data value below which are 50% of scores, and the third (or upper) quartile is the data value below which are 75% of scores (or, conversely, above which are 25% of scores). These values provide information to researchers about the relative spread of the distribution. See Q; quantile.

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Psychology term of the day

June 17th 2024

loss of consciousness (LOC)

Sorry, "loss-of-consciousness-loc" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.