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Correlational findings

Study Okulicz-Kozaryn et al. (2015): study US 2011

Public
18+ aged, general public, the US, 2011
Survey name
US-Panel Study of Income Dynamics (PSID)
Sample
Respondents
N = 8907
Non Response
Assessment
Interview: Computer Assisted Telephone Interview (CATI)
98.6% interviews were conducted through telephone

Correlate

Authors's Label
Number of cars
Our Classification
Distribution
0 car = 16%; 1 car = 34%; 2 cars = 33%; 3 cars = 12%; 4 cars or more = 5%
Operationalization
Selfreport on single question:
Altogether, how many vehicles do you (and your family living there) own or lease (for your personal use)?

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-u-sq-v-5-I r = -.03 ns 1 car O-SLW-u-sq-v-5-I r = +.26 p < .001 2 cars O-SLW-u-sq-v-5-I r = +.30 p < .001 3 cars O-SLW-u-sq-v-5-I r = +.22 p < .001 4 or more cars O-SLW-u-sq-v-5-I b = -.05 ns 1 car O-SLW-u-sq-v-5-I b = +.20 p < .001 2 cars O-SLW-u-sq-v-5-I b = +.22 p < .001 3 cars O-SLW-u-sq-v-5-I b = +.12 p < .05 4 or more cars

B's controlled for
-Total family income O-SLW-u-sq-v-5-I b = -.09 p < .05 1 car O-SLW-u-sq-v-5-I b = +.10 p < .05 2 cars O-SLW-u-sq-v-5-I b = +.10 p < .05 3 cars O-SLW-u-sq-v-5-I b = -.01 ns 4 or more cars

B's additionally controlled for
-Rent a dwelling
-Other than own/rent a dwelling O-SLW-u-sq-v-5-I b = -.13 p < .001 1 car O-SLW-u-sq-v-5-I b = -.05 ns 2 cars O-SLW-u-sq-v-5-I b = -.02 ns 3 cars O-SLW-u-sq-v-5-I b = -.15 p < .05 4 or more cars

B's additionally controlled for
-Number of children in household
-Health status
-Gender
-Marital status
-Age
-State dummy