Question

Below is a list of examples that are typical of research conducted in behavioral science. For the following list of examples, identify the dependent variable (DV) and independent variable (IV). Also, please identify the level of measurement (e.g., nominal, ordinal, interval, ratio) for each IV and DV.

2. A professor tests whether students perform (total points on the test) better on a multiple-choice or fill-in-the-blank test format.

Independent Variable:

     Level of Measurement (IV):

Dependent Variable:

    

     Level of Measurement (DV):

Answer 1

Independent variable is test type, i.e. it can be either multiple choice test format or a fill in the blank test format. It is independent because it is not dependent on any other variable.

Level of measurement is nominal because there is no ordering and categorical variable used, so it is nominal data measurement.

Dependent variable is the student performance because it is dependent on the independent variable , i.e. student performance is dependent on the test format.

level of measurement is ratio because the test scores have a absolute zero value and scores for two or more students can be compared.