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Correlational findings

Study Polit et al. (1980): study US 1975

Public:
Couples, white, middle/upper class, USA, 1975
Sample:
Respondents:
N = 1074
Non Response:
Assessment:
Interview: face-to-face
Wives: face to face interview, husbands: mailed questionnaire.

Correlate

Authors's label
Being an only child, birth order
Our Classification
Operationalization
0. First borns, later borns
1. Only children.

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks C-BW-c-sq-l-10-a DM = + ns              first born  last born   only child
             
             Mean happiness
Males        7,60        7,58        8,00
Females      7,90        7,84        7,81
O-SLu-c-sq-v-3-b =              % very satisfied
Males        18%         17%         27%
O-HL-c-sq-v-3-aa D% = 0 ns Females: differences computed on the basis of % 'not too happy'. O-HL-c-sq-v-3-aa D% = + ns              % very happy
Males        18%         32%         23%

             % not too happy
Males        10%         10%          4%
Females       5%         5%           9%