Question

Trevor plans to study the relationship between people's responses to highly stressful situations and their overall health. He decides he must use correlational research, rather than experimental research, to investigate this problem. Trevor most likely chose a correlational method because correlational studies

a. can be used to study either positive or negative relationships, whereas experiments can only be used to study positive relationships.​
b. have higher internal validity than experiments when there are two dependent variables.​
c. ​tend to be more accurate than experiments.
d. can be used to investigate factors that would be unethical to manipulate in an experimental study.​

Answer 1

Trevor most likely chose a correlational method to study the relationship between people's responses to highly stressful situations and their overall health because it allows him to investigate factors that would be unethical to manipulate in an experimental study.

Step-by-step explanation:

Correlational research allows Trevor to study the relationship between people's responses to highly stressful situations and their overall health. He most likely chose a correlational method because it can be used to investigate factors that would be unethical to manipulate in an experimental study. When using correlational research, Trevor can identify the relationship between variables, but he cannot determine cause and effect. This is because correlational studies cannot control for all variables, which is essential for establishing causation.