Table 1 Sample description of the focus group participants [7]

Total number of participants

31 (100)

Homogeneous focus groups (k = 3, n = 11)

 AAC consultants

11 (35.5)

Heterogeneous focus groups (k = 4, n = 20)

 Informal caregivers (only parents)

8 (25.8)

 Therapists

2 (6.5)

Educators and institutional employees

  Teachers

3 (9.7)

  Employees of homes for persons with disabilities

2 (6.5)

  Employees of sheltered workshops

1 (3.2)

  Educators

3 (9.7)

  Special needs teachers

1 (3.2)

Sex

 Female

25 (80.7)

 Male

6 (19.4)

Age groups

 18–25 years

1 (3.2)

 26–35 years

6 (19.4)

 36–45 years

11 (35.5)

 46–55 years

11 (35.5)

 56–65 years

2 (6.5)