Semantic similarity and the A-B, C-D paradigm in STM

Although RI is influenced by the semantic similarity of stimuli with the A-B, C-D paradigm in normal P-A learning, comparable effects have not been found in STM. Earlier work was open to the criticism that the normal RI procedure was not paralleled by the STM conditions. The present experiments rectify this deficiency, but the effects of stimulus similarity are still absent.