Translation and cultural adaptation of the Supports Intensity Scale in French.

The team translated the Supports Intensity Scale into French. They kept every item but rewrote them for French culture. Then they gave the new form to adults with intellectual disability.

They checked if scores stayed steady inside the form. They also looked at whether the scores lined up with other known measures.

The French SIS held together just like the English one. Internal consistency was excellent. The numbers matched the original version step for step.

Construct validity was good. The scale still measured support needs and nothing else.

Burrows et al. (2018) later showed that SIS-A scores stay flat for one to three years. That backs up the French finding: once the scale is valid, it stays stable.

Guest et al. (2013) translated the PAS-ADD Checklist into French. Their sensitivity was lower than the English form. The French SIS did not lose strength, so SIS-F is a cleaner translation.

Straccia et al. (2013) validated the French Reiss Screen. Both studies used the same cross-cultural steps, giving you a small family of ready-to-use French tools.

If you serve French-speaking adults with ID, you can now grab the SIS-F and trust the numbers. Use it for funding, staffing, and person-centered plans without extra pilot work. Pair it with the French Reiss Screen when you need a quick psychiatry check. Monday morning, swap your English form for the French one and keep the same cut-offs.