An experiment can be assumed to have internal validity if
A. the dependent variable is valid.
B. random assignment and experimental control are employed.
C. confounding variables are present.
D. there is a strong manipulation of the independent variable.
Answer: B
Psychology
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What is the optic chiasm?
a. The separation between the retinal cone layer and the retinal rod layer. b. A point near the base of the brain where some of the fibers from the optic nerve cross over to the opposite side of the brain. c. The special name given to the synapses between the sensory neurons of the retina and the motor neurons of the optic nerve. d. The technical name for the size of the opening of the pupil.
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Which of the following is NOT a dimension of temperament?
A) adaptability B) activity level C) irritability D) extraversion
Psychology