About: http://webisa.webdatacommons.org/51155814

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	The audible and visual groups gave similar average effectiveness ratings to all of the warning devices except the flashing lights, clanging bell, and IVR. The audible group rated these three devices higher than the visual group.
http://www.w3.org/ns/prov#wasQuotedFrom	illinois.edu