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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
Related specification variables
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%