Effects of instruction presentation mode in comparative judgments.

Area of Science:

• Cognitive Psychology
• Decision Making
• Human Information Processing

Background:

• Symbolic comparison tasks involve judging relationships between stimuli.
• The symbolic distance effect (DE) and semantic congruity effect (SCE) are key phenomena in comparative judgments.
• Understanding how task parameters influence these effects is crucial for cognitive models.

Purpose of the Study:

• To investigate the impact of randomized versus blocked comparative instructions on the DE and SCE.
• To determine if the effects of instruction variability generalize across different comparison structures.

Main Methods:

• Two experiments were conducted using a symbolic comparison task.
• Experiment 1: Mixed blocks (randomized instructions) vs. pure blocks (constant instructions); all stimuli compared with all others.
• Experiment 2: Mixed blocks vs. pure blocks; each stimulus paired with only one other stimulus.

Main Results:

• Randomized instructions significantly enhanced both the symbolic distance effect (DE) and the semantic congruity effect (SCE) compared to blocked instructions.
• This enhancement of SCE and DE in randomized conditions was observed regardless of whether all stimuli were compared or each stimulus was paired with only one other.
• The findings suggest instruction variability plays a critical role in comparative judgment magnitude.

Conclusions:

• Randomized comparative instructions amplify cognitive effects like DE and SCE.
• Evidence accrual models naturally explain the enhanced effects observed under randomized instruction conditions.
• Task design, specifically instruction variability, is a significant factor influencing comparative judgment processes.