A preliminary investigation of a novel method to manipulate penis length to measure female sexual satisfaction: a single case experimental design.
Abstract Objectives To investigate a novel methodology and explore whether artificially reducing the depth of penetration during intercourse mattered to women. Design A single case experimental design (“n of 1”) in which a heterosexual couple act as their own control and the study is then replicated in subsequent couples. Participants Thirty‐five couples were assessed for […]