A Comparison Between Two Screening Approaches for ASD Among Toddlers in Israel.

Kerub et al. (2020) ran toddler clinics in Israel. They gave half the families the M-CHAT/F. They gave the other half a broad growth survey. Both groups were 18-24 months old.

Staff then sent all kids for full autism check-ups. They counted who really had ASD. The goal: see which quick paper caught more true cases.

M-CHAT/F spotted seven out of every ten kids later diagnosed with ASD. The broad growth survey caught only five out of ten. Both screens almost never flagged typical kids as sick.

In short, the autism tool found 20% more cases with almost no extra false alarms.

Berkovits et al. (2014) in the U.S. saw the same win: M-CHAT beat the broad PEDS survey. The pattern repeats across countries.

Scarpa et al. (2013) looks like a clash. In poor rural America M-CHAT gave many false positives. The gap is real but explainable: language trouble and low parent education raise error rates. Israel's urban clinics had fewer of those hurdles.

Leung et al. (2014) found high screen-positive rates in Hispanic clinics. Again, culture and language, not the tool itself, drove the numbers. Same test, different context.

If you screen in low-risk, well-educated, urban clinics, swap in M-CHAT/F and you will catch more ASD early. If you work with rural, low-SES, or non-English families, plan extra follow-up calls and interpreter help to keep false positives down. One size does not fit all.