Concurrent predictors of behavioral inflexibility in minimally verbal and verbal autistic children.
Check sensory plus defiance in non-speaking autistic kids, but screen for depression in verbal peers when tackling rigid behavior.
01Research in Context
What this study did
The team looked at 112 autistic kids . Half spoke few or no words. Half used full sentences.
Parents filled out three short checklists: one for rigid routines, one for mood, and one for sensory issues.
The goal was simple. Find which mental-health red flags best predict meltdowns, stuck routines, and other signs of behavioral inflexibility.
What they found
For kids who are mostly non-speaking, sensory overload plus strong defiance scores predicted the worst rigidity.
For kids who speak well, the big predictor was depressive mood. Sensory issues mattered less.
In plain words: the same tantrum can come from different roots, and the roots change with language level.
How this fits with other research
Thurm et al. (2007) showed that joint-attention gaps at age 2 forecast later language level. Gaynor et al. (2024) now shows that language level, in turn, decides which comorbid signs you should watch.
Ferron et al. (2023) found that self-compassion lowers depression in verbal autistic adults. The new child data line up: depression is the key mood flag once kids can talk. The papers do not clash; they just sit at different ages.
Smith et al. (2010) split autistic kids into three sensory subtypes. The 2024 study adds that only the non-speaking group shows sensory issues driving rigidity. The older sensory work is not overturned; it is refined by language status.
Why it matters
When you open a case, first note if the child is minimally verbal or verbal. Then pick the right screen. For non-speakers, add a sensory plus oppositional checklist. For speakers, run a quick mood screen for depression. This small switch can sharpen your treatment plan from day one.
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02At a glance
03Original abstract
Behavioral inflexibility (BI) refers to the rigid and inflexible patterns of behaviors that are a core aspect of autism. Few studies have investigated BI in autism separately from other restricted and repetitive behaviors (RRBs). The present study used a relatively new measure, the behavioral inflexibility scale (BIS; Lecavalier, L., Bodfish, J., Harrop, C., Whitten, A., Jones, D., Pritchett, J., Faldowski, R., & Boyd, B. (2020). Autism Research, 13(3), 489-499), to examine the relationship of BI and variables that are both core symptoms in autism as well as symptoms associated with cooccurring mental health conditions, atypical sensory experiences, and adaptive functioning in a sample of 87 children with autism. Additionally, we aimed to understand how these relationships may be related to autistic individuals' verbal status: minimally verbal (MV) or verbal. Results revealed that anxiety, attention deficit/hyperactive, depressive, oppositional defiance problems, and sensory differences were all significantly correlated with BI in the MV group. In contrast, only anxiety, depressive, and oppositional defiance problems were significantly correlated with BI in the verbal group. Linear regression analyses showed that oppositional defiance problems and atypical sensory experiences explained a significant proportion of the variance of BI in the MV group, whereas only depressive problems were significant in the verbal group after accounting for other mental health conditions. Overall, our findings demonstrate that multiple aspects of psychopathology are significantly related to BI and can have broader implications for interventions and mental health care in autistic children.
Autism research : official journal of the International Society for Autism Research, 2024 · doi:10.1002/aur.3251