Is the study of psychological issues for the sake of knowledge rather than for its practical application?

Which of the following policies can the government use to encourage entrepreneurship?

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?

Mrs. woods would like to see speed bumps installed along a road that passes through a retirement community. who should she talk to in order to have the problem addressed quickly? a) the town council b) the police chief c) her united states senator d) her congressional representative