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University in Beijing, China
Multiple recent studies and reviews find that self-reported penis size is systematically biased compared with clinician-measured values: self-reports tend to be larger on average and a substantial min...
Self-reported penis measurements are consistently larger than clinician-measured values across multiple studies: a U.S. college sample reported mean self‑reported erect length of 6.62 inches versus lo...
Studies that use self-reported erect penis length tend to produce larger average values than studies with clinician-measured or standardized measurements; for example, a large U.S. sample that measure...