Broadband behavior rating scales as screeners for autism?
Broadband behavior checklists miss too many toddlers with autism—stick with tools made for ASD.
01Research in Context
What this study did
The team tested four general behavior checklists as quick autism screens for toddlers and preschoolers. They looked for statistical gaps between kids later diagnosed with autism and kids with other delays or typical development.
The goal was to see if everyday scales like the CBCL could flag autism without a special autism tool.
What they found
All four scales showed tiny differences between groups. The gaps were so small that the scales missed most kids with autism and falsely flagged many without it.
In short, the broadband checklists were not sharp enough for clinic use.
How this fits with other research
Ooi et al. (2011) seems to disagree. They found a 9-item CBCL sub-scale caught 68–78 % of ASD cases in Singapore. The difference: they built a short, autism-focused slice of the CBCL, while L et al. used the whole, general scale.
Hedley et al. (2015) and Allison et al. (2008) back the target paper. Both showed that purpose-built toddler screens (ADEC and Q-CHAT) reach high sensitivity, something no broadband scale achieved here.
Hirota et al. (2018) sums it up: only three tools (AQ, SCQ, SRS) have solid replication for ages 4+. Broadband forms are not on that short list.
Why it matters
When time is short, grabbing a general behavior checklist feels easy. This study warns that move can let kids with autism slip through. Keep a dedicated autism screener like M-CHAT, Q-CHAT, or ADEC in your intake folder and save the broadband scales for overall behavior profiles, not autism red flags.
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02At a glance
03Original abstract
In order to start providing important early intervention services to preschoolers and toddlers with autism, those children first need to be identified. Despite the availability of specialized autism assessment instruments, there is a need for effective screeners at the early childhood level. Three broadband behavior rating scales were evaluated in this study to determine if any of the scales on the instruments could adequately distinguish between children with autism from other clinically referred children. There were four scales from two instruments that resulted in mean scores outside the average range and had statistically significant differences. However, the small mean score differences and analyses of sensitivity and specificity suggest those scales have limited practical usefulness when used by clinicians.
Journal of autism and developmental disorders, 2014 · doi:10.1007/s10803-013-2004-7