Table 4.

Logistic regression results (unstandardized coefficients and odds ratios) for each TC2015 motivation theme by demographic variables (n = 459).

	Values		Educate		Contribute		Fun		Incentive		Outdoors		Past experience		Social
	β	Odds	β	Odds	β	Odds	β	Odds	β	Odds	β	Odds	β	Odds	β	Odds
Intercept	−0.86	0.42	−2.83^{^z}	0.06	−1.48	0.23	−4.50^{^z}	0.01	−1.17	0.31	−4.44^{^y}	0.12	−4.69^{^y}	0.01	−3.58	0.03
Gender (female)	−0.15	0.99	0.38	1.46	0.43	1.04	0.47	1.60	−0.20	0.82	1.27	3.06	1.16	3.19	0.59	1.80
Political views	−0.01	0.99	0.28^{^y}	1.32	0.15	1.16	−0.35	0.71	−0.12	0.89	0.57	1.78	−0.23	0.80	−0.47	0.63
Race (white)	0.32	1.38	0.32	1.38	0.01	1.01	0.00	1.00	−0.86^{^y}	0.42	0.77	2.17	−0.14	0.87	−0.01	0.99
Age	0.03^{^x}	1.03	−0.01	0.99	0.01	1.01	0.00	1.00	−0.02	0.98	−0.03	0.97	0.01	1.01	0.24	1.27
Education	−0.13	0.88	0.35	1.41	−0.34	0.97	0.08	1.08	0.24	1.27	−0.07	0.93	0.48	1.61	−0.36	0.70
Income	−0.05	0.95	−0.02	0.98	0.07	1.07	0.26^{^y}	1.30	−0.03	0.97	0.06	1.06	−0.22^{^y}	0.80	0.27	1.31
Proportion of life in NYC	−0.21	0.81	−0.83	0.44	−1.41^{^z}	0.24	−0.01	0.99	0.95	2.59	−1.80	0.17	1.67^{^y}	5.29	0.15	1.16
Nagelkerke pseudo-R²	0.61		0.56		0.54		0.6		0.58		0.46		0.55		0.36
Goodness-of-fit test against null model (χ²)	17.42^{^y}		14.32^{^y}		12.58		11.62		16.09^{^y}		11.98		19.60^{^z}		5.11
n	459		459		459		459		459		459		459		459