HLT 540 Grand Canyon Week 2 Discussion 1 DQ kinds of extraneous variables

HLT 540 Grand Canyon Week 2 Discussion 1 kinds of extraneous variables

What kinds of extraneous variables (not cited in the studies) do you think could have affected the relationships between the independent variables and the dependent variables in both the Messina et al. and Coyne et al. studies?

Discussion Question # 1 W4
Extraneous variables may have an influence on the dependent variable. In what ways do researchers attempt to control extraneous variables? Support your answer with current literature.