A. allows mathematical relationships to be established.
B. provides a point of reference against which the behavior of the experimental group can be compared
C. balances the experiment to eliminate all extraneous variables
D. is not really necessary
Related Mcqs:
- In a study of effects of alcohol on driving ability, the control group should driving ability, the control group should be given:
A. a high dosage of alcohol
B. one-half the dosage given the experimental group
C. a driving test before and after drinking alcohol.
D. no alcohol at all - The independent variable in an experiment is : ______________?
A. the subject himself
B. a measure of the subject’s behavior
C. the variable that the experimenter chooses to manipulate
D. any unwanted variable that may adversely affect the subject’s performance - A simple experiment has two groups of subjects called: ______________?
A. the dependent group and the independent group
B. the extraneous group and the independent group
C. the before group and the after group
D. the control group the experimental group - Tolman’s experiment with rats in the maze was aimed to study: __________?
A. Operant conditioning learning
B. trial-and-error learning
C. Latent learning
D. Classical conditioning learning - “Statistically significant” means that the results of an experiment most likely:
A. had practical significance
B. resulted from chance variations
C. were not strongly correlated
D. were not due to chance - The chief antidote for lest anxiety is: ___________?
A. over-preparation
B. thought suppression
C. regression
D. discussing the problem with your professor - The main function of myelin is to ______________?
A. form a protective coating over nerve axons
B. affect the seed of nerve impulses
C. block the reception of acetylcholine
D. Nome of these - The function of the lens is to: ___________?
A. locate an image
B. focus an image on the retina
C. combine the location and projection on the blind spot.
D. Project an image on the comes - The tendency to view one’s own group as superior to others and as the standard for judging the worth of foreign ways is know as: _____________?
A. Behaviorism
B. ethnocentrism
C. humanism
D. functionalism - When individuals exert less effort in a group than they would when working alone, this may be due to which of the following?
A. Social facilitation
B. Diffusion of responsibility
C. Social loafing
D. b & c
