A researcher plans to do an experiment in the college setting concerning the effects of class size on attendance in a first year law course.He has four levels of size,namely,15,25,40,and 60 students.Four colleges are involved in the study,each having eight first-year law classes,two of each class size.The researcher can assign students at random to a class within a college,but he cannot assign students randomly to a college.Two law professors are used in each college.All professors teach four classes; the dependent variable is grades measured after one semester.Discuss the problems of control in this situation.Consider possible uncontrolled variables and variables that are or might be controlled.Is there a possibility of confounding of variables in this research situation? State one or more hypotheses for this experiment.

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The Answer of A researcher plans to do an experiment in the college setting concerning the effects of class size on attendance in a first year law course.He has four levels of size,namely,15,25,40,and 60 students.Four colleges are involved in the study,each having eight first-year law classes,two of each class size.The researcher can assign students at random to a class within a college,but he cannot assign students randomly to a college.Two law professors are used in each college.All professors teach four classes; the dependent variable is grades measured after one semester.Discuss the problems of control in this situation.Consider possible uncontrolled variables and variables that are or might be controlled.Is there a possibility of confounding of variables in this research situation? State one or more hypotheses for this experiment.

A Researcher Plans to Do an Experiment in the College