About: http://webisa.webdatacommons.org/31339040

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Had no effects on teenagers??? sense of academic competence or their engagement in school but substantially reduced their problem behavior, such as aggression and substance use;
http://www.w3.org/ns/prov#wasQuotedFrom	mdrc.org