Synthesized contingency analysis

Safety status: Functional analysis can arrange conditions in which harmful behavior becomes more likely. Use documented risk assessment, consent and assent when applicable, trained staff, communication access, medical input when indicated, stop rules, exposure limits, and emergency planning.

The test condition combines suspected variables

An interview and observation may suggest that behavior occurs when several events happen together, such as an adult ending a preferred activity, starting a task, and limiting attention. A synthesized test can arrange that combined context and deliver the combined set of suspected reinforcers after the defined response.

The control condition removes the suspected establishing conditions and makes relevant reinforcers freely available. Repeated test-control differentiation is evaluated within an experimental design.

IISCA names a broader assessment process

The interview-informed synthesized contingency analysis, or IISCA, uses an open-ended interview and observation to design an individualized synthesized test and control comparison. People sometimes shorten synthesized contingency analysis to SCA. In other technical contexts, SCA may mean single-case agreement, so write the full term at first use.

The BACB Test Content Outline covers functional assessment, experimental analysis, and interpretation as examination content. It endorses no single FA format for every case.

A combined result leaves component questions

If the test combines escape, attention, and access to an item, differentiation shows that the package functions as reinforcement under those conditions. It cannot tell the team whether one component would work alone, whether every component is necessary, or whether components interact.

A review of approaches for multiply controlled behavior makes this distinction explicit: a functional relation with a synthesized contingency is insufficient evidence that behavior has multiple control because the separate contribution of each component often remains unknown.

Evidence includes support and disagreement

Fisher and colleagues compared standardized and interview-informed synthesized contingencies against functional-analysis results. The study addresses whether synthesis and the interview-derived selection add useful information; it does not create a universal winner.

Recent functional-analysis decision guidance presents synthesized analysis as one option among several, chosen after considering risk, rate, resources, suspected control, efficiency, and the decision needed. Debate continues around false-positive risk, isolated versus combined tests, individualization, ecological validity, and component analysis. A neutral clinical record should name the design and limits rather than treating “IISCA” as a quality label.

Component analysis can answer a later question

When a combined contingency differentiates, the next decision may require testing components separately or in selected combinations. That extra analysis adds exposure and effort, so it should follow a concrete treatment or interpretation need. Record which components remain untested. Avoid describing a synthesized result as “attention plus escape maintained” when the design demonstrated only the combined package.

If a treatment succeeds after a synthesized assessment, the result supports that treatment in the observed conditions. It still cannot reconstruct which assessment component was necessary without a suitable comparison.

Selection requires an answerable question

Ask whether the clinical decision concerns a combined situation, independent components, or both. If treatment would remove only one variable, a combined result may provide too little component-level information. If the naturally occurring context reliably combines events, synthesis may offer a relevant initial comparison.

Plan how an inconclusive, differentiated, or unexpected result will change the next step. The design should earn its burden by answering a stated question.

Safety controls belong in the design

The functional-analysis risk decision paper offers a scholarly framework for weighing risk. It creates no legal safe harbor. Qualified clinicians still need person-specific medical, behavioral, environmental, staffing, and response information.

Define operational responses, entry criteria, segment and cumulative limits, precursor or latency measures when supported, stop authority, protective procedures, recovery checks, and event review. Emergency care and mandated reporting bypass routine research-style steps. Communication, food, water, bathroom access, mobility, prescribed care, and emergency help stay available.

A fictional analysis record

Priya’s qualified team plans 16 test or control segments after preliminary assessment and risk review. Fourteen reach their defined endpoint; one ends at a safety stop and one is invalid after an implementation error. Valid-endpoint coverage is 14 of 16, or 87.5%.

The target response occurs in 6 of 7 valid test segments and 1 of 7 valid control segments. That pattern may support a relation with the combined contingency after visual and design-based review. It establishes no separate escape, attention, or tangible function. The safety-stopped and invalid segments remain visible in exposure and integrity reporting.

Treatment remains an independent decision

Assessment results inform treatment design while leaving client priorities, health, communication, risk, feasibility, and interdisciplinary findings in view. A synthesized analysis never automatically authorizes extinction, delay, denial, or a particular treatment package.

The current BACB Ethics Code addresses competence, medical needs, involvement, consent, assent when applicable, assessment, intervention, restrictive procedures, risk, data, and evaluation for covered professionals. Record why the selected method and next action fit the person.