We used a repeated measures ANOVA and post hoc t-tests to assess the effects of the factors ‘morph type’ (low BS, unmanipulated BS, high BS), ’treatment group’ (OT or placebo) and ‘endogenous T concentration’ (high or low T) on the Delta-RTs. Bonferroni correction yielded a corrected statistical threshold of p ≤ 0.0166 and a corresponding statistical trend level of p ≤ 0.033.