Experimental Methods - Psychology

What is the difference between correlational and experimental methods?

What is the purpose of the independent variable?

What is the purpose of the dependent variable?

Why are operational definitions so important in experimental methods?

What is the difference between control groups and experimental groups?

What are the advantages of using experimental studies?

Why is it so important for researchers using experimental methods to control as many aspects of the experiment as possible?

What is the difference between a random and convenience sample?

What is the purpose of using random assignment to assign participants to different research groups?