Concurrent validity of the Warner Initial Developmental Evaluation of Adaptive and Functional Skills and the Bayley Scales of Infant and Toddler Development, Third Edition.
Colleen Peyton, Michael E Msall, Kristen Wroblewski and 3 others
PMID 33206384WHAT IT FOUND
In high-risk infants, WIDEA-FS mobility and communication scores tracked Bayley-III motor and language scores.
Low scores can help decide who needs full Bayley testing, but some scores max out too early to tell children apart.
Key findings
01WIDEA-FS mobility scores were significantly related to Bayley-III motor scores at every tested age band.
02WIDEA-FS communication cutpoints of 30 and 48 had at least 90% sensitivity, and a cutpoint of 52 had 100% sensitivity, for Bayley-III language scores of 85 or lower at the tested ages.
03WIDEA-FS social cognition scores were significantly related to Bayley-III cognitive scores at 10 to under 18 months and at 30 months or older.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for SLPs
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What it does not show
The study was done in one hospital follow-up program and only in high-risk infants, so the cutpoints may not work the same way in other settings or risk groups. Relatively few children scored 85 or lower on the Bayley-III, so the 90% sensitive cutpoints may be higher than in samples with more children at risk. Only 75% of children had one assessment, and multiple assessments were clustered within the same children, which can make estimates less precise. The WIDEA-FS had ceiling effects in some domains at certain ages, so children who reach the maximum score may no longer be differentiated by this tool. The study did not validate the WIDEA-FS self-care domain against Bayley-III outcomes, and the WIDEA-FS is not intended to replace a detailed neurodevelopmental assessment.
Declared interests
No author conflict-of-interest or funding statement appears in the supplied text; the publication types list NIH extramural and non-U.S. government research support.
The easy way to misread this
Do not use WIDEA-FS scores as a diagnosis or as a replacement for Bayley-III testing. The authors recommend it to screen which children need a full Bayley-III assessment, and cutpoints chosen for high sensitivity can flag many children whose Bayley scores are above 85.