School & Classroom

Functional Analysis and Treatment of Pica on a Preschool Playground

Ledford et al. (2019) · Behavior Analysis in Practice 2019
★ The Verdict

A quick attention-based plan cut playground pica and stayed in place weeks later.

✓ Read this if BCBAs working with preschoolers who mouth or eat non-food items during outdoor play.
✗ Skip if Clinicians whose clients’ pica is driven by automatic reinforcement only.

01Research in Context

01

What this study did

Ledford et al. (2019) worked with a preschooler who kept eating non-food items on the playground. The team first ran a quick functional analysis. They saw pica happened most when adults gave eye contact or spoke to the child.

Next they built a simple plan. Teachers taught the child to hand over the item and say "Here." This gave the same adult attention but in a safe way. Sessions took place outside during normal recess.

02

What they found

Pica dropped quickly once the new request was taught. The teachers kept using the plan without help. Four weeks later pica was still low.

No extra rewards or punishment were needed. Just trading the item for a short adult comment kept the child safe.

03

How this fits with other research

Frank‐Crawford et al. (2025) later tested a larger set of 33 children. They added more parts like blocking and competing toys. Their big sample shows the 2019 single case still holds up.

Ruckle et al. (2023) used a different response: throw the item in the trash. Both studies got the same good result. This tells you the exact topography is less important than matching the function.

Meier et al. (2012) warned that generalization and maintenance often fail. The 2019 case met that challenge; teachers kept the plan and data stayed flat.

04

Why it matters

You can cut pica fast on the playground without stopping play. First do a 5-minute functional analysis. If attention drives the behavior, teach one simple request. Let the child trade the object for a quick “Thanks.” Start the plan on Monday and keep tally for a month. The child stays safe and the class keeps moving.

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→ Action — try this Monday

Run a 5-minute attention test during recess; if pica rises, teach “Here” and trade item for praise.

02At a glance

Intervention
functional communication training
Design
single case other
Sample size
1
Population
not specified
Finding
positive

03Original abstract

Appropriate use of function-based assessments and interventions is crucial for improving educational outcomes and ensuring the well-being of children who engage in dangerous problem behaviors such as pica. A function-based assessment was conducted for a child engaging in pica in an inclusive childcare setting. Results suggest pica was maintained by access to adult attention. Function-based interventions were developed, assessed, and shared with the child’s teaching team. Follow-up data suggest that his teachers continued to use the intervention and that levels of pica remained low.

Behavior Analysis in Practice, 2019 · doi:10.1007/s40617-018-00283-9