Experiment performed Online Witness

DATA SET 1 Variables in the dataset Variables in the paper Measurement intervene1 Intervene 1 if individual decides to intervene; 0 otherwise control Social Services and No Anonymity (Reference category) 1 if individual was assigned to the group of social services and no anonymity; 0 otherwise treatment1 Witness Anonymity 1 if individual was assigned to the group of social services and witness anonymity; 0 otherwise treatment2 Aggressor Anonymity 1 if individual was assigned to the group of social services and aggressor anonymity; 0 otherwise treatment3 Police 1 if individual was assigned to the group of police and no anonymity; 0 otherwise female Female 1 if female; 0 otherwise. age Age Age of individual. witness Witness 1 if individual reports having witnessed an IPV case; 0 otherwise. foreigner Foreign Nationality 1 if individual does not have Spanish nationality; 0 otherwise. single Single (Reference) 1 if individual is single; 0 otherwise. married Married 1 if individual is married; 0 otherwise. divorce Divorced 1 if individual is divorced; 0 otherwise. widow Widowed 1 if individual is widowed; 0 otherwise. child_dependent Child dependents Number of dependent children. tertiary Tertiary Education 1 if individual has tertiary education; 0 otherwise. tertiary_mother Tertiary Mother 1 if the individual’s mother has tertiary education; 0 otherwise. income_499_or_less Income 499 or less 1 if net income is less than €500 income_500_999 Income 500-999 1 if net income is between €500 and €999 income_1000_1499 Income 1000-1499 1 if net income is between €1000 and €1499 income_1500_1999 Income 1500-1999 1 if net income is between €1500 and €1999 income_2000_or_more Income 2000 or more 1 if net income is €2000 or more feminist_association Feminist Association 1 if individual ever collaborated with a feminist association; 0 otherwise. accept_divorce Divorce Acceptance 1 if individual agrees that divorce is acceptable; 0 otherwise. religious_services Religious Services 1 if individual attends religious services once a week or more; 0 otherwise. knowledge_ss Knowledge of Social Services 1 if individual knows that IPV can be reported to social services; 0 otherwise. nonidentification_ipv Non-Identification of IPV Average score of 10 items that measure the difficulty in identifying IPV. gender_stereotypes Gender Stereotypes Average score of three items that measure gender stereotypes (rescaled to 0-1 interval).