A multiple‐stimulus‐without‐replacement assessment for sexual partners: Test–retest stability
MSWO keeps the same partner order after two months, so you can trust repeat social-preference checks.
01Research in Context
What this study did
Researchers asked college students to rank pictures of possible sexual partners.
They used the MSWO method: look at all photos, pick the top one, then repeat.
Two months later the same students did the task again to see if ranks stayed put.
What they found
Most students kept the same partner order on the second test.
The hierarchy stayed stable, so the MSWO worked for social reinforcers too.
How this fits with other research
Tassé et al. (2013) tested adults with ID/DD and also found stable social picks.
They used paired-choice instead of MSWO, but the idea extends: social likes stay put.
Morris et al. (2023) later showed you can track approach/avoid counts in one short session.
Together the papers say: pick your tool—MSWO, paired choice, or simple counts—and trust the ranks you get.
Why it matters
If you run social-skills groups or dating programs, you can use MSWO to find who each client wants to talk to or sit with. Repeat the quick photo sort next month and the top picks will likely stay the same, so you can plan reinforcement without starting over.
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02At a glance
03Original abstract
The stability of stimulus preference assessment results is an important consideration when using the identified stimuli in treatments and/or additional experiments. Prior research has demonstrated that the preference hierarchies identified by the multiple stimulus without replacement (MSWO) preference assessment are generally stable over time. This stability has been demonstrated with tangible and edible items, yet the extent to which that stability can be expected for other types of stimuli remains unknown. The current study tested the 2-month stability of the MSWO preference assessment in the context of college students' preferred sexual partners. Adequate stability was shown in most cases, suggesting generality of the stability of preference across tasks, populations, and stimuli.
Journal of Applied Behavior Analysis, 2022 · doi:10.1002/jaba.936