> The power analysis used a power criterion of (1 − β) = 0.80, which indicated that a mean cell size of n = 54 was sufficient to replicate significant effects of acetaminophen.
The question is not whether n=114 is "large enough" because that question, by itself, does not make sense. The question is whether n=114 is "large enough for the observed effect." Given that the p-values for the "personal pleasure" and "empathetic feelings" measures are under 0.001, the answer is "yes," potential methodological issues notwithstanding.