The Swedish version of the Childhood Autism Rating Scale in a clinical setting.

Two Swedish clinicians watched the same child for one clinic visit.

Each filled out the Childhood Autism Rating Scale (CARS) without talking to the other.

They wanted to see if both clinicians would give similar scores.

The two clinicians agreed well.

Weighted kappa ranged from .53 to .75, which means fair to excellent agreement.

This shows the Swedish CARS works reliably in brief consultations.

Cohen et al. (2018) extends this finding by showing parents detect early ASD signs better than clinicians during brief visits.

This seems to contradict Dube et al. (1998), but the difference is who is rating.

V et al. tested two trained clinicians rating together, while R et al. tested parent versus clinician ratings.

Gutierrez et al. (1998) found poor reliability for the Motivation Assessment Scale, showing not all clinical scales work as well as CARS.

Matson et al. (2009) includes CARS in their review of child social-skills measures, confirming its place among validated tools.

You can trust the Swedish CARS when two clinicians observe together.

But don't skip parent input - parents often see things clinicians miss in short visits.

Use both sources for the fullest picture.