By the late 1940s, on which aspect of leadership did the majority of research focus?

What do you know about harriet tubman?

This was an act of continental congress which initially organized the first united states territory and was to be the basis for governing how the united states would expand westward.

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?