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The need for standardized protocols in measuring penile length due to variations in techniques and observer differences.
Medical studies that measure stretched penile length (SPL) — the clinical standard for pediatric penile assessment — report a mean SPL for 12‑year‑old boys in the neighborhood of about 7 cm, but that ...
Medical verification of extreme relies on a handful of clinic‑based measurement techniques—chiefly erect measurement, stretched penile length (SPL), and bone‑to‑tip (BTT) versus skin‑to‑tip (STT) land...
has generally pooled clinic-based and volunteer studies using varied techniques—flaccid, stretched, or erect—often measured with a ruler by clinicians or by participants, and then to produce populatio...
lack a single universally accepted method, but consensus recommendations and methodologic research point to a limited set of practices that improve accuracy and reduce bias: specify and consistently u...
Clinical and self-reported measurements of penile length diverge in predictable ways: self-reports tend to be larger on average due to social desirability and perceptual bias, while clinician-measured...
Different measurement protocols produce systematically different penile lengths: stretched penile length (SPL) is the most commonly used proxy and often yields values that correlate with erect length ...