An evaluation of the single‐session interview‐informed synthesized contingency analysis
One 5-minute IISCA can find the function and guide a treatment that nearly erases severe problem behavior.
01Research in Context
What this study did
Three boys with severe problem behavior sat through one 5-minute test. The test was an IISCA: a quick interview with caregivers first, then a single session that mixed all suspected triggers together.
The team watched. If problem behavior spiked, they knew the mix was right. The whole thing took five minutes, not hours.
What they found
Every boy’s behavior shot up during the 5-minute test. The same mix that caused the spike became the base for treatment.
After treatment, severe behavior almost vanished. One short test gave each kid a custom plan that worked.
How this fits with other research
Weyman et al. (2022) took the same 5-minute idea and used it on rituals. They added a multiple schedule to thin reinforcement. The IISCA sped up assessment; the 2022 study shows you can keep the speed and still fade rewards.
Dugan et al. (1995) did the first fast descriptive check. Their lag-sequential method took longer but aimed for the same goal: a quick guess at function. Jessel et al. (2019) trimmed the guess to five minutes and moved straight to treatment.
Demello et al. (1992) proved one DRA plan could cut many topographies after a short FA. The IISCA now gives you that FA in a single cup-of-coffee.
Why it matters
You can run an IISCA during one snack break. If the behavior jumps, you have the function and a ready-made treatment. No long sessions, no extra staff. Try it next time a referral says “severe” and the schedule is full.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Run a 5-minute IISCA: interview the parent, mix the triggers, watch for the spike, then build your FCT plan.
02At a glance
03Original abstract
Functional analysis can often be a lengthy process requiring time and resources not readily available to practitioners working with children who exhibit severe problem behavior. The interview‐informed synthesized contingency analysis (IISCA) was recently developed as an alternative functional analysis format that improved analytic efficiency by requiring only 25 min to conduct. Furthermore, a within‐session analysis of the first test session of the entire IISCA could reduce the process to as little as a single 5‐min session. We extended this previous research by conducting what was termed the single‐session IISCA with three boys who exhibited severe problem behavior. A function‐based treatment package, including reinforcement thinning, informed by the results of the single‐session IISCA nearly eliminated problem behavior for all three participants. We suggest that the single‐session IISCA could be a viable alternative to other functional analysis formats when time is limited.
Behavioral Interventions, 2019 · doi:10.1002/bin.1650