marginally significantP = 5.07 × 10 −2
The allele × session interaction was marginally significant ( F (3.53, 801.74) = 2.47 P = 5.07 × 10 −2 , η p 2 = 0.01).
The allele × session interaction was marginally significant ( F (3.53, 801.74) = 2.47 P = 5.07 × 10 −2 , η p 2 = 0.01).
In males, there was a trend toward increased active lever pressing during the final four sessions that approached but did not reach statistical significance (session 16 vs 19: P = 0.052).