Why is a typical distribution of self-esteem scores considered to be a unimodal distribution?

A typical distribution of self-esteem scores features a distinct peak situated near the middle, with tails that taper off in either direction from this peak. It serves as an example of a unimodal distribution simply because it possesses one distinct peak.

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A unimodal distribution is a specific shape of a distribution that features exactly one distinct peak. In a histogram, this appears as a single prominent high point from which the tails taper off.

Unimodal Distribution

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KPU Research Methods in Psychology - 4th American Edition

An example of a unimodal distribution can be observed in a histogram plotting the self-esteem scores of a sample of students, where a single, distinct peak emerges near the middle of the graph with tails tapering off in both directions.

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