About: http://webisa.webdatacommons.org/410078054

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	In item response theory (IRT), the a parameter is a number that indicates the discrimination of a test item ??? how sharply the item differentiates between generally strong and generally weak test takers.
http://www.w3.org/ns/prov#wasQuotedFrom	ets.org