Study Matikka & Ojanen (2002): study FI 1994

Public:

18-77 aged intellectually disabled, Finland, 1994-2000

Sample:

Respondents:

N = 376

Non Response:

15%

Assessment:

Interview: face-to-face
in their home setting or in work places

Correlate

Authors's label

level of intellectual disability

Our Classification

Operationalization

1 Boderline
2 Mild intellectual disability
3 Moderate intellectual disability

Observed Relation with Happiness