Expectations by the experimenter that might influence the results of an experiment or their interpretation are called __________.

A) experimental blinds
B) experimenter bias
C) sample bias
D) treatment bias

Experimenter bias refers to the expectations or preconceived notions of the experimenter that may unintentionally influence the outcome of an experiment or the interpretation of its results. Experimental blinds refer to measures taken to prevent participants from knowing which treatment they received, while sample bias and treatment bias refer to other types of biases that can affect the validity of an experiment.