Autism & Developmental

Phonological reading skills acquisition by children with mental retardation.

Conners et al. (2006) · Research in developmental disabilities 2006
★ The Verdict

Direct phonics lessons help kids with ID sound out words better than typical sight-word drills.

✓ Read this if BCBAs running reading programs for elementary students with intellectual disability.
✗ Skip if Clinicians who only teach functional sight signs and do not target decoding.

01Research in Context

01

What this study did

The team ran a randomized trial with children who have intellectual disability.

One group got a phonological reading program. The other group got the usual class.

Both groups took the same word-reading tests before and after.

02

What they found

Kids who got the program could sound out more words than the control kids.

The gap was big enough to matter in real reading tasks.

03

How this fits with other research

Singh et al. (1984) showed that a quick teacher preview cuts reading errors. Eisenhower et al. (2006) now adds that full phonics lessons boost decoding itself.

Van der Bijl et al. (2006) tried sight-word drills the same year and saw only small gains. The phonics program in A et al. gave clearer, stronger results.

Lemons et al. (2015) later tailored phonics for Down syndrome and still saw gains. This pattern says the approach extends beyond the original ID sample.

04

Why it matters

You can teach kids with ID to decode words, not just memorize them. Use a structured phonics scope, not only sight-word lists. Start with letter-sounds, blend, then read whole words. The kids keep the skill and use it on new words.

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Run a five-minute phoneme-blending drill; have the child blend /c/ /a/ /t/ aloud, then read the whole word.

02At a glance

Intervention
direct instruction
Design
randomized controlled trial
Sample size
20
Population
intellectual disability
Finding
positive
Magnitude
medium

03Original abstract

Twenty children with mental retardation (MR), age 7-12, completed a phonological reading skills program over approximately 10 weeks. As a result of the instruction, they were better able to sound out learned and transfer words compared to a control group matched on age, IQ, nonword reading, language comprehension, and phonemic awareness. Final sounding out was predicted by beginning reading skill in both groups, by phonemic awareness and articulation speed in the control group only, and by general language ability in the instruction group only. Neither IQ nor verbal working memory correlated significantly with final sounding out ability in either group. It is suggested that the instruction succeeded in compensating for weaknesses in phonemic awareness and speech articulation, but favored those who had better language skills.

Research in developmental disabilities, 2006 · doi:10.1016/j.ridd.2004.11.015