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Correlational findings

Study Simmons et al. (1977): study US 1970 /1

Public:
Kidney donors followed before and after donation, USA, 1970-1973
Sample:
Respondents:
N = 133
Non Response:
Assessment:
Questionnaire: paper
T1 before donation, T2 5 days post, T3 1 years post donation

Correlate

Authors's label
Kidney donation
Our Classification
Operationalization
1: Kidney doners
     T1: pre-transplant during selection  check.
     T3: 1 year after transplant
0   T3 controls:
     a: non-donor recipients
     b: national population USA 1965
     (reported in Bradburn 1969)

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-HL-c-sq-v-3-aa G = +.03 ns M-AO-g-mq-v-5-a DMt = 1.9 T1-T2 change
      17% had become less happy
      35% had not changed
      48% had become more happy
O-HL-c-sq-v-3-aa G = +.03 p < .001 M-AO-g-mq-v-5-a G = +.35 p < .02 O-SLW-c-sq-v-3-c G = +.13 p < .001 O-HL-c-sq-v-3-aa DMt = +1.5 CHANGE in happiness:
                very   pretty    not too    Mt'
- donors T1     34%    58%         8%       6.3
- donors T3     60%    35%         5%       7.8


Difference with:
O-SLW-c-sq-v-3-c DMt = +0.9 CHANGE in lifesatisfaction
            complete    pretty    not    Mt'
donors T1   26%         64%       10%    5.8
donors T3   37%         59%        4%    6.7
O-SLW-c-sq-v-3-c DMt = +0.9 CHANGE in lifesatisfaction
            complete    pretty    not    Mt'
donors T1   26%         64%       10%    5.8
donors T3   37%         59%        4%    6.7
O-HL-c-sq-v-3-aa DMt = +1.8 - recipients T3  26%    68%      5%      6.0
M-AO-g-mq-v-5-a DMt = 1.2 T1-T3 change O-HL-c-sq-v-3-aa G = +.48 p < .001 O-SLW-c-sq-v-3-c DMt = +1.2 Difference with recipients T3
            19%         71%       10%    5.5

Donor were already more satisfied than controls at T3 and became even more satisfied.
O-SLW-c-sq-v-3-c G = +.42 p < .001 O-SLW-c-sq-v-3-c G = +.13 p < .001 M-AO-g-mq-v-5-a DMt = 1.2 T1-T3 change O-SLW-c-sq-v-3-c DMt = +1.2 difference with recipients T3
            19%         71%       10%    5.5

Donor were already more satisfied than controls at T3 and became even more satisfied.
O-HL-c-sq-v-3-aa DMt = +1.8 - recipients T3 26%    68%         5%       6.0
O-SLW-c-sq-v-3-c G = +.42 p < .001 M-AO-g-mq-v-5-a G = +.29 p < .02 O-HL-c-sq-v-3-aa G = +.48 p < .001 O-HL-c-sq-v-3-aa DMt = +2.1 - population US  30%    53%     17%       5.7
Donors were already somewhat happier than controls at T1, but became much happier at T3
O-HL-c-sq-v-3-aa DMt = +1.5 CHANGE in happiness
                very   pretty   not too   Mt'
- donors T1      34%    58%      8%       6.3
- donors T3      60%    35%      5%       7.8


Difference with:
M-AO-g-mq-v-5-a G = -.05 ns