In this section, you learned about the different tools and techniques companies use to provide consumers with information about their products and services. Use what you learned to explain how technology and media affect the decisions that families make about purchasing products and services. Provide at least three examples.

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?