Paired-Stimulus Preference Assessment
Also called: paired choice, forced choice, PS preference assessment
Definition
A preference assessment in which items are presented two at a time, every item is paired with every other item, and the item chosen in each pair is recorded. Items are then ranked by how often they were chosen. It produces a clear hierarchy and takes longer than the multiple-stimulus formats.
In plain language
Show two items at a time and record which one the person picks. Every item gets paired with every other one, which gives a clear ranking.
Example
Six items produce fifteen pairs. The tablet is chosen in all five of its pairs and ranks first.
Not paired-stimulus preference assessment
All six items laid out at once and the chosen one removed each time. That is multiple-stimulus without replacement.
Commonly confused with
See also
Written from
- fisher-1992
Written from Fisher et al. (1992). No textbook glossary consulted.
This entry has not yet been through clinical review. Treat it as a draft.