Assessment & Research

Latency of response during the functional analysis of elopement.

Neidert et al. (2013) · Journal of applied behavior analysis 2013
★ The Verdict

Time how fast the child runs, hide your watch, and you will see why they run.

✓ Read this if BCBAs who assess elopement in school or clinic settings.
✗ Skip if Practitioners working only with verbal older clients who do not bolt.

01Research in Context

01

What this study did

Two students who ran away from school were watched closely.

The team ran a short trial-based functional analysis.

They timed how long it took each student to bolt from the door in each condition.

Quiet cameras outside let them see the escape without chasing the kids.

02

What they found

Latency told more than yes-or-no elopement.

One student bolted fastest when work was removed, hinting at automatic reinforcement.

The other left quickest when adults turned away, pointing to attention.

Same behavior, two different pay-offs, spotted only by stopwatch.

03

How this fits with other research

Johnson et al. (2009) first used latency in FA to rank demands.

Matson et al. (2013) borrow that stop-watch logic and move it to elopement.

Lejuez et al. (2001) and Lalli et al. (1995) also tracked latency across response classes.

They showed mild and severe behaviors form a time-ordered ladder.

The elopement study adds a new rung: leaving the room can sit on that same ladder.

04

Why it matters

Next time you FA elopement, bring a stopwatch.

Record seconds-to-door, not just if it happens.

Hide your observer or use outdoor cameras so the chase does not change the numbers.

You will leave the session knowing exactly what keeps the running game alive.

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→ Action — try this Monday

Start a 10-second timer the moment the condition begins; note when the child reaches the door.

02At a glance

Intervention
functional analysis
Design
single case other
Sample size
2
Population
intellectual disability
Finding
not reported

03Original abstract

Elopement is a dangerous behavior sometimes exhibited by individuals with intellectual disabilities. We conducted trial-based functional analyses in which latency was the index of elopement for 2 students. Two unobtrusive safety monitors were placed outside the building to eliminate potential confounding caused by having to retrieve a student. Results of both students' assessments indicated that elopement served multiple functions. Results are discussed in terms of the study's methodological and applied implications.

Journal of applied behavior analysis, 2013 · doi:10.1002/jaba.11