Study Ventegodt (1997): study DK 1993

Public:

31-33 aged, born at the university hospital, Denmark, 1993

Sample:

Respondents:

N = 4626

Non Response:

36%

Assessment:

Questionnaire: paper
Data were taken from the medical files of mothers and their babies

Correlate

Authors's Label

Age of first reach for objects

Our Classification

Distribution

N all:2527,   1:2,2%,   2:43,2%,   3:48,0%,   4:5,7%,   5:0,6%,   6:0,3%

Operationalization

Age of first reach  for objects as reported in medical file
1: 1-2 months
2: 3-4 months
3: 5-6 months
4: 7-8 months
5: 9-10 months
6: 11-12 months

Observed Relation with Happiness