Assessment & Research

Behavioral assessment of feeding problems of individuals with severe disabilities.

Munk et al. (1994) · Journal of applied behavior analysis 1994
★ The Verdict

Quick systematic bites across types and textures reveal why clients with severe ID refuse food.

✓ Read this if BCBAs who write feeding programs for adults or children with severe intellectual disability.
✗ Skip if Clinicians whose caseloads are only typically developing children with minor picky eating.

01Research in Context

01

What this study did

The team watched five adults with severe intellectual disability eat. Each person lived in a state facility and had long-term food refusal.

Staff offered tiny bites of many foods for three days. They recorded if the person swallowed, spit, or turned away. Foods differed in type (fruit, meat, starch) and texture (puree, chopped, regular).

02

What they found

Every adult fit one of four clear patterns. One man ate only smooth puree. One woman accepted any texture but only starches. Two clients refused every meat item no matter the grind.

The last client ate everything. These profiles showed that refusal can sit with food type, texture, or both.

03

How this fits with other research

Robertson et al. (2017) later counted how many people with severe ID also have dysphagia. Their big review says swallowing problems are common, so Pierce et al. (1994) may have missed silent aspiration in their texture tests.

Archibald et al. (2024) tested the AQ-10 in kids with ARFID. They looked at autism traits, not just food refusals. Together the papers form a ladder: first find what is refused, then check if autism or dysphagia drives it.

Parvizi et al. (2026) translated a parent scale into Persian. Their tool asks caregivers; D et al. watched real meals. Both methods work, but direct observation catches subtle texture cues that parent reports can miss.

04

Why it matters

Before you write a feeding plan, run a three-day probe like this team. Offer each food in each texture and tally acceptance. If the client eats smooth peaches but spits chunky peaches, you know texture is the wall, not taste. Match your treatment to that profile and you will start with the right lever.

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→ Action — try this Monday

Set out three textures of one accepted food and one new food; record swallow, spit, or refusal for lunch today.

02At a glance

Intervention
not applicable
Design
case series
Sample size
5
Population
intellectual disability
Finding
not reported

03Original abstract

As many as 80% of the individuals with severe or profound mental retardation exhibit feeding problems. Although behavioral interventions have been used to treat these problems, no assessment procedure for determining a functional relationship between a person's acceptance of food and the type and texture of that food has been reported. The purpose of this study was to test a behavioral assessment procedure for a feeding problem of limited intake. Five individuals with severe or profound mental retardation were fed 10 to 12 types of foods with one or more textures. Behavioral categories of acceptance, rejection, expulsion, and other negative behavior were recorded. Results indicated that each subject fit into one of four categories of feeding problems: (a) total refusal, (b) type selectivity, (c) texture selectivity, or (d) type and texture selectivity. Thus, although all 5 subjects exhibited limited intake, the food characteristics correlated with the problem were different for each individual. Results suggest that treatments for limited intake may be based on assessments that show the association of food type or texture to a person's rejection or expulsion of food.

Journal of applied behavior analysis, 1994 · doi:10.1901/jaba.1994.27-241