ABSTRACT
IfyoureadTrickorTrap21,youalreadyappreciatetheseriousnesswith whichabiasshouldbetreatedwhenconsideringtheresultsofsurveys.However, youmaynotrealizehowpervasivebiasinsamplingis.Herewe'llconsiderafew examplesofdifferenttypesofbias.
IfyoureadTrickorTrap21,youalreadyappreciatetheseriousnesswith whichabiasshouldbetreatedwhenconsideringtheresultsofsurveys.However, youmaynotrealizehowpervasivebiasinsamplingis.Herewe'llconsiderafew examplesofdifferenttypesofbias.