If a Variable Such as Sexual Orientation Is Not Open

question 41

Multiple Choice

If a variable such as sexual orientation is not open to manipulation, then

• A) researchers must choose more than two levels of this variable to have a valid experiment.
• B) the dependent variable must be operationally defined or the experiment is invalid.
• C) both subject and independent variables must be controlled.
• D) researchers cannot conduct an experiment using this variable as an independent variable.