Environics Focus Ontario 1991-3

Environics Focus Ontario (EFO) is a regular public opinion survey of Ontario residents which has been in the field since the 1986. EFO includes items which tap Canadian partisan loyalties. EFO is produced by Environics Research Group Limited, Toronto, Ontario.安大略环境聚焦调查（Environics Focus Ontario, EFO）是一项针对安大略省居民的常规民意调查，自1986年起便持续开展。该调查涵盖用于测量加拿大政党忠诚度的调研条目，由位于安大略省多伦多市的环境研究集团有限公司（Environics Research Group Limited）编制。