Which of the Following Is True Regarding Physiological and Psychological

Multiple Choice

Which of the following is true regarding physiological and psychological experimenter effects, according to the text?

A) Researchers are more concerned with physiological experimenter effects than psychological experimenter effects.
B) Researchers are more concerned with psychological experimenter effects than physiological experimenter effects.
C) Researchers are very concerned with both physiological and psychological experimenter effects.
D) Researchers usually pay little attention to these factors because they are difficult to control.