H. Study sample

The study sample consisted of 30 female students with moderate intellectual disabilities, aged nine to 13 years, and they were selected according to the following controls:

1. The student must have been diagnosed by the psychiatric diagnostic team at the Institute of Intellectual Education as suffering from a moderate intellectual disability with an IQ score between 40–54 as per the Wechsler Adult Intelligence Scale (WAIS), 36–51 as per the Stanford-Binet test, or the equivalent of either of them as per other standardized individual intelligence tests.
2. The student must not have been previously enrolled in skills training programmes similar to the one in question.
3. The student must show a clear deficiency in terms of independence skills according to the results of the pre-assessment of these skills.
4. The student must demonstrate psychological, behavioural and health stability allowing her to benefit from the programme provided.