Bias effects in a two-stage recognition paradigm: A challenge for "pure" threshold and signal detection models.
Journal of experimental psychology. Learning, memory, and cognition(2022)
摘要
We explored a two-stage recognition memory paradigm in which people first make single-item "studied"/"not studied" decisions and then have a chance to correct their errors in forced-choice trials. Each forced-choice trial included one studied word ("target") and one nonstudied word ("lure") that received the same previous single-item response. For example, a studied-studied trial would have a target that was correctly called "studied" and a lure that was incorrectly called "studied." The two-high-threshold (2HT) model and the unequal-variance signal detection (UVSD) model predict opposite effects of biasing the initial single-item responses on subsequent forced-choice accuracy. Results from two experiments showed that the bias effect is actually near zero and well out of the range of effects predicted by either model. Follow-up analyses suggested that the model failures were not a function of experiment artifacts like changing memory states between the two types of recognition trials. Follow-up analyses also showed that the dual process signal detection model made better predictions for the forced-choice data than 2HT and UVSD models. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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关键词
recognition memory,signal detection theory,threshold models
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