GossA. E., & SugarmamM. E.Paired-associate learning with varying relative percentages of occurrence of alternative response members. J. exp. Psychol., 1961, 62, 24–34.
2.
VossJ. F.ThompsonC. P., & KeeganJ. H.Acquisition of probabilistic paired-associates as a function of S-R1, S-R2 probability. J. exp. Psychol., 1959, 58, 390–399.