Effects of instruction presentation mode in comparative judgments

Samuel Shaki, Craig Leth-Steensen, William M. Petrusic

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

In each of two experiments, the comparative instructions in a symbolic comparison task were either varied randomly from trial to trial (mixed blocks) or left constant (pure blocks) within blocks of trials. In the first experiment, every stimulus was compared with every other stimulus. The symbolic distance effect (DE) was enhanced, and the semantic congruity effect (SCE) was significantly larger, when the instructions were randomized than when they were blocked. In a second experiment, each stimulus was paired with only one other stimulus. The SCE was again larger when instructions were randomized than when they were blocked. The enhanced SCE and DE with randomized instructions follow naturally from evidence accrual views of comparative judgments.

Original languageEnglish
Pages (from-to)196-206
Number of pages11
JournalMemory and Cognition
Volume34
Issue number1
DOIs
StatePublished - Jan 2006

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