The influence of winning/losing experience on aggressiveness for individuals with lower/higher hormone levels. The decay of the effect of experience on the probability of behaving aggressively for focal individuals with lower (< median) and higher (≥ median) levels of (A) pre-contest F, (B) pre-contest T and (C) pre-contest KT. Pearson’s χ2 tests were used to determine the significance of overall experience effects for each time-decay treatment/hormone-level group. For treatments with significant overall experience effects, Fisher’s exact tests (2-tailed) were then used to test the significance of loser and winner effects separately by comparing the probabilities for the EL and the EW fish, respectively, to that for the EN fish (shown on tops of EL and EW bars, respectively). The sample size for each bar is presented on the bottom of the bar. ns P > 0.05; * P ≤ 0.05; ** P ≤ 0.01; *** P ≤ 0.001.