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.

3. A researcher tests whether children’s’ attitudes towards smoking (measured using a Likert-type scale) are different for children who have parents who smoke versus children who have parents that do not smoke.

Independent Variable:

     Level of Measurement (IV):

Dependent Variable:

    

     Level of Measurement (DV):

Answer 1

Answer 3

Independent variable is parents type, i.e. whether parents smoke or don't smoke because parents type is not dependent on any other variable.

Level of measurement for Independent variable is Nominal because it can either be "Smoke" or "Don't Smoke"

Dependent variable is the Children's attitude because it is dependent on the parents type and it can be changed by changing the independent variable values.

Measurement of level is ordinal because children attitude is measured using Likert scale and Likert scale is a ordinal measurement.