About: http://webisa.webdatacommons.org/290705266

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	Reviewers noted that although there were some attrition issues, the differential effects of attrition were not statistically significant and efforts were made to control statistically for pre-test and other differences.
http://www.w3.org/ns/prov#wasQuotedFrom	ed.gov