What occurs when experiences influence our interpretation of data?

Anode is a point on a wave where there is no vibration. a.true b.false

How did southerners view andrew johnson and republicans in congress

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?