How do people order stimuli?

Area of Science:

• Cognitive Psychology
• Psychophysics

Background:

• Ordering multiple stimuli can be cognitively demanding.
• Preliminary representations like scaling or categorization may aid ordering tasks.

Purpose of the Study:

• To investigate whether preliminary representations (scaling or categorization) facilitate stimulus ordering.
• To examine the naturalness and efficiency of rank ordering versus other assessment methods.

Main Methods:

• Five experiments were conducted involving ranking tasks (line lengths, photograph artistic value).
• Participants' task performance and self-reported strategies were analyzed.
• Comparisons were made between rank ordering and alternative assessment measures (e.g., percentage estimation).

Main Results:

• Participants frequently employed preliminary scaling or categorization strategies to aid ordering.
• Rank ordering was less preferred when alternative assessment measures were available.
• Estimating line lengths as a percentage was faster than rank ordering when stimuli were numerous or presented sequentially.

Conclusions:

• Stimulus ordering is not inherently easy or natural, particularly with large sets or when stimuli require memory.
• The findings suggest that psychological measures are unlikely to be purely ordinal when recall is necessary.