Scary-sounding music accompanied a movie scene in which mountain climbers scaled a steep slope. the fact that the music made the climbing appear more dangerous to viewers illustrates that perceptions are influenced by

How did the rise to power and reign of alexander most affect greece

What has contributed to the growth of agriculture as big business in the midwest

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?