psych When researchers added a few drops of vinegar to a brand-name beer, the beer tasters disliked it only if they had been told they were drinking vinegar-laced beer. This best illustrates the impact of

Which of the following items would serve as a primary source for a historian studiying the american civil war

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?

Which 3 locations completed the triangle