Assessment & Research

Inferential functioning in visually impaired children.

Puche-Navarro et al. (2007) · Research in developmental disabilities 2007
★ The Verdict

Use verbal tasks, not hands-on ones, to fairly assess inference skills in blind or low-vision children.

✓ Read this if BCBAs working with blind or low-vision children in school or clinic settings.
✗ Skip if Practitioners serving only sighted populations.

01Research in Context

01

What this study did

The team tested the kids . Half were blind or had very low vision. Half had normal sight.

Each child solved the same inference problems two ways: by listening to a story and answering questions, or by touching objects to show the answer.

The goal was to see if visual status or task format made the bigger difference in how well kids reasoned.

02

What they found

Blind kids scored slightly higher on the verbal story tasks. Sighted kids scored higher on the hands-on tasks.

The big lesson: the way you ask the question matters more than whether the child can see.

03

How this fits with other research

Withagen et al. (2013) extends this finding. They showed blind young learners also beat sighted peers on verbal working-memory tasks. Together, the two studies tell the same story: verbal formats let blind children show their strengths.

Richman et al. (2001), Petit et al. (2025), and Naito et al. (2004) all looked at inference skills in autistic children. They found mixed results—some inference types are hard, others are fine. This matches Puche-Navarro et al. (2007) because both lines of work say we must test the right kind of inference for each group.

No direct contradictions appear. The papers simply zoom in on different populations while agreeing that task format and inference type shape results.

04

Why it matters

If you assess a blind learner, skip the blocks and pictures. Use spoken stories and questions instead. You will get a truer picture of their reasoning skills and avoid underestimating what they know.

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→ Action — try this Monday

Swap any manipulative-based inference probes for simple spoken stories followed by verbal questions questions.

02At a glance

Intervention
not applicable
Design
quasi experimental
Population
other
Finding
mixed

03Original abstract

The current study explores the inferential abilities of visually impaired children in a task presented in two formats, manipulative and verbal. The results showed that in the group of visually impaired children, just as with children with normal sight, there was a wide range of inference types. It was found that the visually impaired children perform slightly better in the use of inductive and relational inferences in the verbal format, while in the manipulative format children with normal sight perform better. These results suggest that in inferential functioning of young children, and especially visually impaired children, the format of the task influences performance more than the child's visual ability.

Research in developmental disabilities, 2007 · doi:10.1016/j.ridd.2006.01.003