Refer to the section “The Big Picture: Experimental Design” a.  What is the purpose of a correlative (observational) study?b.  List two limitations of a correlative study.c.  What is the purpose of a causative (manipulative) study?

A control group is __________. a. a set of individuals that have a certain characteristics or receive a certain treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive results

Why do scientists design experiments to disprove the hypothesis they are testing instead of trying to prove that the hypothesis is correct?

In one survey, fifteen randomly selected students were found to be taller than 6 feet. This data led to the conclusion that the average height of a student is greater than 6 feet. This is an example of __________. a. experimental error b. sampling error c. a subjective opinion d. experimental bias