“…Multinomial processing tree (MPT) models (Batchelder & Riefer, 1999;Erdfelder et al, 2009) offer such an analysis by providing separate estimates of the cognitive processes underlying performance scores. In the past, MPT models have been used successfully to disentangle storage and retrieval contributions to well-known memory phenomena, for example, the bizarreness effect (Riefer & Rouder, 1992), the recognition failure effect (Riefer & Batchelder, 1995), retroactive inhibition (Bä uml, 1991(Bä uml, , 1996, and more recently the enactment effect (Steffens, Jelenec, & Mecklenbrä uker, 2009;Steffens, Jelenec, Mecklenbrä uker, & Thompson, 2006).…”