Endorsement rates per group.

Mean endorsement rates per stimulus category, on main factor level, and d-prime. Endorsement is the proportion of sequences classified as Grammatical independent of the actual grammaticality status of items. D-prime was defined as the difference between the z-transformed endorsement rate of Grammatical items and the z-transformed endorsement rate of the Non-Grammatical items. G = Grammatical, NG = Non-Grammatical, H = High ACS, L = Low ACS. Values in parenthesis denote standard deviations.