Group disaster mary, jane, janet and samantha chose each other for a group project since they knew that they were all high achievers. once the project rolled around however, their group actually did more poorly than the group where all the members knew that others were slackers. how did that happen?

Interest groups and political action committees are both types of organizations that

As of 2013, the world’s total population was about

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?