TABLE 2.

The indirect effects of adolescents’ biospheric values and environmental self-identity on pro-environmental behaviors.

Study 1			Study 2			Study 3
	→Behavior			→Behavior			→Behavior
Indirect paths	Estimate [95% CI]	SE	Indirect paths	Estimate [95% CI]	SE	Indirect paths	Estimate [95% CI]	SE
Recycling			Recycling non-refundable plastic			Drinking water from the tap or well
(SUM)	0.43 [0.29;0.62]	0.08	(SUM)	0.27 [0.18;0.38]	0.05	(SUM)	0.12 [0.05;0.19]	0.03
BIO→ESI→ PN→	0.22 [0.10;0.42]	0.09	BIO→ESI→ PN→	0.09 [0.03;0.15]	0.03	BIO→ESI→ PN→	0.02 [0.001;0.03]	0.01
BIO→ESI→	0.11 [−0.09;0.30]	0.10	BIO→ESI→	0.01 [−0.06;0.11]	0.04	BIO→ESI→	0.06 [−0.002;0.12]	0.03
BIO→ PN→	0.10 [−0.01;0.26]	0.07	BIO→ PN→	0.16 [0.07;0.26]	0.05	BIO→ PN→	0.04 [0.004;0.09]	0.02
ESI→ PN→	0.44 [0.21;0.81]	0.16	ESI→ PN→	0.16 [0.05;0.26]	0.06	ESI→ PN→	0.03 [0.002;0.06]	0.02
Environmentally friendly traveling			Cycling to school
(SUM)	0.38 [0.26;0.53]	0.07	(SUM)	0.05 [−0.09;0.18]	0.07
BIO→ESI→ PN→	0.21 [0.12;0.39]	0.07	BIO→ESI→ PN→	0.06 [0.01;0.13]	0.03
BIO→ESI→	0.08 [−0.08;0.19]	0.07	BIO→ESI→	0.06 [−0.07;0.18]	0.06
BIO→ PN→	0.10 [−0.002;0.22]	0.06	BIO→ PN→	−0.07 [−0.16;0.01]	0.04
ESI→ PN→	0.42 [0.28;0.70]	0.11	ESI→ PN→	0.11 [0.01;0.21]	0.05
Purchasing environmentally friendly products			Purchasing of organic food products
(SUM)	0.41 [0.29;0.56]	0.07	(SUM)	0.15 [0.04;0.25]	0.05
BIO→ESI→ PN→	0.15 [0.03;0.30]	0.07	BIO→ESI→ PN→	0.06 [0.02;0.10]	0.02
BIO→ESI→	0.16 [−0.01;0.38]	0.10	BIO→ESI→	0.05 [−0.05;0.14]	0.05
BIO→ PN→	0.10 [0.004;0.24]	0.06	BIO→ PN→	0.04 [−0.01;0.11]	0.03
ESI→ PN→	0.31 [0.06;0.59]	0.14	ESI→ PN→	0.10 [0.03;0.17]	0.04

CI, confidence interval; SE, standard error; BIO, biospheric values; ESI, environmental self-identity; PN, personal norm; SUM, cumulative indirect effect. Statistically significant values are marked in bold.