Give one example of a data collection method used in one of the studies identified in your project

Give one example of a data collection method used in one of the studies identified in your project. What variable was this method used to measure? Give one example of a data collection method used in one of the studies identified in your project. What variable was this method used to measure?

Required Reading Assignments: Chapters 8 (pg. 189-228); 9 (pg. 244-246)