"What does 'often' even mean?" Revising and validating the Comprehensive Autistic Trait Inventory in partnership with autistic people.
Friederike Charlotte Hechler, Outi Tuomainen, Nathan Weber and 5 others
PMID 39915887WHAT IT FOUND
A revised autism trait questionnaire, co-designed by autistic people to remove stigmatising language and improve accessibility, showed strong reliability and validity in 1439 adults.
It allows meaningful comparison of scores between male and female participants.
Key findings
01The revised inventory demonstrated high internal consistency for all subscales, with Cronbach's alpha values exceeding .84.
02Measurement invariance analysis confirmed that the questionnaire items function similarly across male and female participants, allowing for valid score comparisons.
03Total scores on the revised inventory correlated strongly with two other widely used autism trait measures, supporting its convergent validity.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The study relied on self-reported autism diagnosis rather than clinical confirmation via gold-standard measures. The sample was limited to native English speakers from five specific countries, which restricts cross-cultural generalisability. The number of non-binary participants was relatively small, limiting the certainty of findings for this group. The study did not assess test-retest reliability or the impact of item order.
Declared interests
The study was supported by non-U.S. government funding. The authors declared no competing interests.
The easy way to misread this
Do not use the CATI-R as a diagnostic tool. The study validated it as a measure of individual differences in sub-clinical autistic traits within the general population. The authors explicitly state that further research is required to validate its use as a screening tool, particularly because diagnoses were not confirmed with gold-standard measures during the study.