Methodological aspects of life events research in people with learning disabilities: a review and initial findings.

The authors looked at every published way to ask adults with intellectual disability about life events. They did not run new interviews. They read the methods sections of past papers and pulled out what worked and what failed.

The paper lists step-by-step tips: use pictures, ask the same question twice in different words, and always check with a caregiver.

No numbers are given. The review simply warns that yes-no questions miss half the story. It also shows that carers often rate the same event as more upsetting than the client does.

Kittler et al. (2004) and Koegel et al. (2014) later used these tips and showed that life events really do predict later psychiatric symptoms. Their surveys prove the 1995 advice is worth following.

Dagnan et al. (2005) sounds gloomy—life-event scores predicted only a tiny bit of later symptoms. The gap is explained by design: D used quick checklists while P and L used fuller interviews, exactly what the 1995 paper urged.

Davison et al. (1995) studied children with PDD, not adults with ID, and found strong links between loss events and depression. Same year, same topic, different age group—so the papers complement, not clash.

When you intake an adult with ID, skip the yes-no life-event box. Ask once, ask again with simpler words, show a picture cue, and record the caregiver’s view. This three-step habit, first mapped in 1995, is now backed by two decades of data showing it catches real risk factors you would otherwise miss.