TY - JOUR
T1 - Effects of instruction presentation mode in comparative judgments
AU - Shaki, Samuel
AU - Leth-Steensen, Craig
AU - Petrusic, William M.
PY - 2006/1
Y1 - 2006/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33745963270&partnerID=8YFLogxK
U2 - 10.3758/BF03193398
DO - 10.3758/BF03193398
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C2 - 16686118
AN - SCOPUS:33745963270
SN - 0090-502X
VL - 34
SP - 196
EP - 206
JO - Memory and Cognition
JF - Memory and Cognition
IS - 1
ER -