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Correlational findings

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 head lifting
Our Classification
Distribution
N all:3105,   1:24,2%,   2:37,2%,   3:18,5%,   4:12,2%,   5:7,0%,   6:1,0%
Operationalization
Age of head lifting when lying on the stomach as reported in medical file
1: 1-2 weeks
2: 3-4 weeks
3: 5-6 weeks
4: 7-8 weeks
5: 3-4 months
6: 5-6 months

Observed Relation with Happiness

Happiness Measure Statistics Special Research Type Elaboration / Remarks A-AOL-m-sq-v-5-a DMt = ± none 1: Mt=7.71
2: Mt=7.73
3: Mt=7.91
4: Mt=7.73
5: Mt=7.63
6: Mt=8.13
A-AOL-m-sq-v-5-a r = +.01 p < .681 none O-SLu-c-sq-v-5-e DMt = ± none 1: Mt=7.34
2: Mt=7.44
3: Mt=7.59
4: Mt=7.39
5: Mt=7.26
6: Mt=7.89
O-SLu-c-sq-v-5-e r = +.01 p < .611 none O-HL-c-sq-v-5-ha DMt = ± none 1: Mt=6.98
2: Mt=7.06
3: Mt=7.21
4: Mt=6.88
5: Mt=6.80
6: Mt=7.35
O-HL-c-sq-v-5-ha r = -.01 p < .522 none