A. the placebo effect
B. an extraneous variable
C. variability
D. psychosomatic illness
Related Mcqs:
- In a weight-reduction experiment, an overweight individual was given what the researcher called a new type of diet pill that would help curb the desire to eat in fact. the pill really contained powdered milk, but ever since the individual started taking the diet pill, he has reported that his desire to eat has decreased. This illustrates the:
A. curvilinear relationship
B. effect of extraneous variables
C. natural experiment
D. placebo effect - Positive reinforcement_______the rate of responding negative reinforcement________the rate of responding.
A. increases; decreases
B. decreases; increases
C. increases; increases
D. decreases; decreases - The steady, rapid responding of a person playing a slot machine is an example of the pattern of responding typically generated on a_______schedule.
A. Fixed-ratio
B. variable-ratio
C. Fixed-interval
D. variable-interval - Responding to a conditioned stimulus in order to avoid electric shock is an example of ________________?
A. avoidance conditioning
B. punishment
C. escape conditioning
D. successive approximation - A pigeon in a Skinner box is pecking the disk at a high, steady rate. The graph portraying this pigeon’s responding will have:
A. a steep, unchanging slope
B. a shallow, unchanging slope
C. a progressively steeper slope
D. a progressively shallower slope - The prescription drug Thorazine used to treat persons with schizophrenia may cause side effects, one of them called tardive dyskinesia. What might a person suffering from this side effect display?
A. involuntary movements of tongue and face
B. no movement at all
C. slow movements
D. clapping of the hands repeatedly - An experimenter conducts an experiments on the effects of a drug to control hallucinations. He declares the results to be “statistically significant,’ which usually means that:
A. even though appropriate statistics were used, no differences could be detected between experimental and control groups
B. the results have important implications for theory or practice
C. differences between experimental and control group of this size occur by chance only 5 times out of 100 (or less)
D. differences between experimental and control groups were so large they could never occur by chance alone - Giving placebos in drug experiments is necessary to:
A. counteract the random assignment of subjects
B. counteract the side effect of the drug
C. control for the effects of suggestion and expectation
D. keep control subjects from knowing they have been given the drug - In order to understand that a ball of clay can take a different shape without either losing or gaining substance, which of Piaget’s stages must the child have reached?
A. sensorimotor
B. preoperational
C. formal operational
D. concrete-operational - In order to help MR. Eberstadt overcome his addiction to alcohol, his therapist first attempted to discover whether the substance dependency was somehow a reaction on his wife’s behavior. The therapist’s concern is most likely to be characteristic of a:
A. biomedical therapist
B. psychoanalyst
C. family therapist
D. cognitive therapist
