<prompt> Translate the following text to EnglishNjia ya CV inahesabu mwisho kwa kutumia uchunguzi ulioundwa kwa uangalifu kuuliza sampuli ya watu ni kiasi gani cha fidia kinacholingana na mabadiliko fulani katika ubora wa mazingira.  <response>: The CV method values endpoints by using carefully structured surveys to ask a sample of people what amount of compensation is equivalent to a given change in environmental quality. 