Table 1.

Data files.

Variable	Variable description	Variable type	Variable labels
Culture	Culture	Nominal	4 = Americans
Gender	Gender	Nominal	1 = Male; 2 = Female
BirthYear	Year of Birth (YYYY, e.g. 1991)	String	Text
Birthmonth	Month of Birth	Nominal	1 = January … 12 = December
BirthCountry1	Country of Birth	Nominal	1 = USA; 2 = outside USA
BirthCountry2	Country of Birth	String	Text
LivingUSA	If you were not born in USA: For how many years have you been living in USA?	String	Text
Ethnicity	What are your ethnic or cultural origins? (e.g., American, British, French, Chinese, Italian…)	String	Text
FatherOcc	What is your father's current occupation?	String	Text
FatherEdu	Choose the highest level of education your father has attained.	Numeric	1 = Some high school studies;
			2 = completed high school;
			3 = some college and university studies;\
			4 = completed college diploma;
			5 = completed undergraduate degree;
			6 = some postgraduate studies;
			7 = completed graduate or professional degree
MotherOcc	What is your mother's current occupation?	String	Text
MotherEdu	Choose the highest level of education your mother has attained.	Numeric	1 = Some high school studies;
			2 = completed high school;
			3 = some college and university studies;
			4 = completed college diploma;
			5 = completed undergraduate degree; 6 = some postgraduate studies;
			7 = completed graduate or professional degree
Free Listing	Please write down 5 attributes describing a highly moral person in your personal view.	String	Text
Rating_accepting… Rating_ambitious a	Describes a highly moral person-accepting …	Numeric	1 = Not at all; 2 = a little bit; 3 = somewhat; 4 = fairly well; 5 = Extremely well
	Describes a highly moral person-ambitious
Selected_accepting …	In the next step please select 12–15 qualities that define the core of a highly moral person from…	Nominal	1 = selected
Selected_ambitious a
LGS1 …	Generative Concerns	Scale	As reported
LGS20 b
CE1…	Community Engagement	Scale	As reported
CE30c
EI1 …	Environmental Identity	Scale	As reported
EI12d
Ein1 …	Environmental Involvement	Scale	As reported
Ein11e

^aFor 90 moral values; refer to supplementary material.

^bLGS: 20 generative items, refer to supplementary material.

^cCE 30 community engagement items, refer to supplementary material.

^dEI: 12 environmental identity items, refer to supplementary material.

^eEin: 11 environmental involvement items, refer to supplementary material.