Investigating the cross-cultural validity of DSM-5 autism spectrum disorder: evidence from Finnish and UK samples.
DSM-5 spots autism in Finland as well as the UK, yet it can miss mild, culturally shaped traits.
01Research in Context
What this study did
Mandy et al. (2014) tested whether DSM-5 autism criteria work the same way in Finland as they do in the UK. They compared Finnish and UK samples to see if the diagnostic model fit both groups equally well.
The study looked at people already diagnosed with autism spectrum disorder. It also checked how well the criteria picked up broader autism traits that are milder than full ASD.
What they found
The DSM-5 model fit Finnish people with ASD just as well as it fit UK people. This means the core criteria work across these two cultures for clear autism cases.
But the fit was weaker for Finnish people with only mild, broader autism traits. The criteria missed culturally shaped social differences that don't look like typical UK presentations.
How this fits with other research
Strunz et al. (2015) and Harris et al. (2014) both warn that autism tools often lose reliability when moved across cultures. Their reviews line up with William et al.'s finding that milder traits get missed without local norms.
Farley et al. (2022) extends this warning. Their 2022 paper argues that Western social-communication standards label normal cultural behaviors as autistic. This builds on William et al.'s 2014 data showing Finnish mild traits were overlooked.
Cheong et al. (2022) offers a fix. They culturally adapted the Mullen Scales for Taiwanese children and got good validity. This mirrors William et al.'s call to check, and if needed tweak, Western tools before using them locally.
Why it matters
If you assess CLD clients, remember that DSM-5 works for clear ASD but may under-count mild, culturally shaped traits. Pair the criteria with parent interview questions about local social norms. When scores sit near the cutoff, gather extra examples of everyday behavior in the family's culture before deciding.
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02At a glance
03Original abstract
The recent Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (DSM-5) reformulation of autism spectrum disorder has received empirical support from North American and UK samples. Autism spectrum disorder is an increasingly global diagnosis, and research is needed to discover how well it generalises beyond North America and the United Kingdom. We tested the applicability of the DSM-5 model to a sample of Finnish young people with autism spectrum disorder (n = 130) or the broader autism phenotype (n = 110). Confirmatory factor analysis tested the DSM-5 model in Finland and compared the fit of this model between Finnish and UK participants (autism spectrum disorder, n = 488; broader autism phenotype, n = 220). In both countries, autistic symptoms were measured using the Developmental, Diagnostic and Dimensional Interview. Replicating findings from English-speaking samples, the DSM-5 model fitted well in Finnish autism spectrum disorder participants, outperforming a Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition (DSM-IV) model. The DSM-5 model fitted equally well in Finnish and UK autism spectrum disorder samples. Among broader autism phenotype participants, this model fitted well in the United Kingdom but poorly in Finland, suggesting that cross-cultural variability may be greatest for milder autistic characteristics. We encourage researchers with data from other cultures to emulate our methodological approach, to map any cultural variability in the manifestation of autism spectrum disorder and the broader autism phenotype. This would be especially valuable given the ongoing revision of the International Classification of Diseases-11th Edition, the most global of the diagnostic manuals.
Autism : the international journal of research and practice, 2014 · doi:10.1177/1362361313508026