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Index/Topics/Self-Reported Surveys

Self-Reported Surveys

Surveys where participants self-report their penis length, which can lead to overestimation.

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2 results
Feb 6, 2026

What are the measurement differences and biases between self‑reported, stretched and clinician‑measured erect penile lengths?

Self‑reported, stretched (maximally stretched flaccid), and clinician‑measured erect produce different averages and are subject to distinct biases: self‑report tends to overestimate, generally correla...

Feb 5, 2026

What is the percentage of men with a penis that measures 6 inches long?

The question can mean two different things: how many men have an erect penis that is exactly 6.0 inches long (an exact-value question) or how many have an erect penis of about 6 inches or longer (a pe...