<prompt> Which is the ideal most scientific setting for an epidemiological studyCase-Control studyCoho studyExperimental studyCross-section study  <response>: Experimental or intervention studies are similar in approach to coho studies excepting that conditions in which study is carried out are under the direct control of the investigator.The aim of experimental studies may be stated as followsa to provide ;scientific proof; of aetiological factors or risk factorsb to provide a method of measuring the effectiveness and efficiency of health servicesPark 23e pg:80 