Development of an instrument for diagnosing significant limitations in adaptive behavior in early childhood.
The 72-item DABS Form 4-8 gives BCBAs a fast, reliable way to spot big adaptive delays in young kids.
01Research in Context
What this study did
Navas et al. (2012) built a new 72-item form to spot big delays in everyday skills. They call it the DABS Form 4-8. Kids aged four to eight took the test. Some had intellectual disability. Some were typical peers.
The team used item-response math to check if each question worked. They wanted a short tool that gives one clear cutoff score.
What they found
The 72 items fit the math model well. Scores were steady around the cutoff. That means the form can reliably flag kids who need help with self-care, language, or social skills.
How this fits with other research
Tsakanikos et al. (2011) did the same kind of math on the DAS behavior scale, but for adults. Both studies show one checklist can give clean factors and good reliability.
Kleinert et al. (2007) and Eussen et al. (2016) also tested new tools for young kids with ID or ASD. They looked at repetitive or sensory behaviors, not adaptive skills. Together these papers tell us we now have short, solid forms for different problem areas.
Stewart et al. (2018) took the Repetitive Behavior Scale into Spanish. Patricia et al. did the same for adaptive behavior. Both prove Spanish-speaking families can get sound measures without waiting for English versions.
Why it matters
You now have a quick, research-backed form to decide if a preschooler shows significant adaptive delays. Use the DABS Form 4-8 during intake, share the cutoff score with parents, and write stronger justification for services. No need to fold in long IQ tests or parent diaries.
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02At a glance
03Original abstract
Although adaptive behavior became a diagnostic criterion in the 5th edition of the American Association on Intellectual and Developmental Disabilities, AAIDD (Heber, 1959, 1961), there are no measures with adequate psychometric properties for diagnosing significant limitations in adaptive behavior according to the current conception of the construct. This fact has led to an excessive reliance on intellectual functioning measures. The goal of the present paper consists of presenting the development of the AAIDD's forthcoming Diagnostic Adaptive Behavior Scale (DABS) in Spain, and, specifically, it will be focused on one of its three forms: DABS Form 4-8 years old. The sample consisted of 388 people, aged 4-8 years old, with and without intellectual disabilities. The functioning of an initial pool of 168 items was analyzed under the assumptions of Item Response Theory models (IRT) with the aim to select those items around the cut-off point for determining significant limitations in adaptive behavior. A set of 72 items was selected (96 items were removed due to misfit, unsatisfying response category functioning, or low precision of measurement). The final version seems to be essentially unidimensional, shows good fit to the model, and represents an accurate precision of measurement around the cutoff point for diagnosing significant limitations in conceptual, social or practical skills.
Research in developmental disabilities, 2012 · doi:10.1016/j.ridd.2012.03.006