Why do psychological terms or concepts need to be operationally defined?
A) To allow psychologists to conduct experiments on such concepts
B) To prevent errors from occurring in an experiment
C) To fuse psychological concepts with objective circumstances
D) To understand a concept, you must first have a definition of that concept
Question 2
In experiment brief 17, why should the experimenter rethink his conclusion regarding
the confirmation of his hypothesis?
A) group B had less people than group A
B) group A had less people than group B
C) group B had an easier task
D) group A had an easier task