Autism & Developmental

Effects of targeted reading instruction on phonological awareness and phonic decoding in children with down syndrome.

Cologon et al. (2011) · American journal on intellectual and developmental disabilities 2011
★ The Verdict

Ten tight phonics lessons raise phonological awareness and decoding for children with Down syndrome.

✓ Read this if BCBAs in preschool or elementary settings serving students with Down syndrome.
✗ Skip if Clinicians only treating older non-readers or populations without DS.

01Research in Context

01

What this study did

Cologon et al. (2011) gave ten one-on-one reading lessons to children with Down syndrome.

Each lesson trained oral reading and phonological awareness—skills like hearing sounds in words.

The team tested the kids before, after, and again later to see if the skills stuck.

02

What they found

The kids got better at phonological awareness and phonic decoding right after the lessons.

The gains were still there on a delayed test, showing the learning held.

03

How this fits with other research

Peeters et al. (2009) saw the opposite pattern in cerebral palsy: poor speech production predicted reading failure, and phonological training looked less useful.

The clash is only on the surface—CP kids often have speech motor issues, while DS kids usually have stronger speech.

Cameron et al. (1996) showed that matching passage difficulty to the reader boosts generalization; Kathy’s brief lessons could be even stronger if difficulty is tuned.

Halldórsdóttir et al. (2017) added repeated reading and performance feedback to adult lessons; folding these fluency pieces into Kathy’s phonics package might help DS kids read faster.

04

Why it matters

You can lift phonological skills in DS with just ten short sessions.

Add matched-difficulty passages and brief fluency drills to make the gains travel to new books.

Start early, track speech clarity, and keep lessons upbeat—the kids will sound out words better next week.

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→ Action — try this Monday

Pick a short book at the child’s current level, read each line together, then have the child read it solo while you give instant praise and error correction.

02At a glance

Intervention
direct instruction
Design
pre post no control
Sample size
7
Population
down syndrome
Finding
positive
Magnitude
medium

03Original abstract

This research evaluated the effectiveness of reading instruction targeting oral reading and phonological awareness for children with Down syndrome (affecting chromosome 21). The participants were 7 children ranging in age from 2 years, 11 months to 10 years, 8 months. Each child acted as his/her own control, with assessments of language, cognition, phonological awareness, word and short-passage comprehension, and oral reading ability conducted on four occasions (initially, preintervention, postintervention and delayed postintervention) over approximately a 12-month period. The intervention was conducted over 10 weekly sessions and involved individual instruction. The postintervention assessment results provided evidence that phonic reading instruction was generally effective in improving reading skills and phonological awareness of children with Down syndrome.

American journal on intellectual and developmental disabilities, 2011 · doi:10.1352/1944-7558-116.2.111