The dependent variable ____
a. ?is the variable manipulated by the experimenter
b. ?is the cause of the outcome
c. ?needs to be controlled by the experimenter
d. ?shows the effect of the manipulation
ANSWER:
d
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An artist wishing to use texture as a cue to depth in his painting would:
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Research on Aplysia shows us that at least one physiological basis for learning involves which of the following?
a. changes in RNA molecules b. presynaptic changes c. increased dendrite branching d. changes in glia
According to research on infants' recognition of their mothers,
a. infants can recognize that mothers look different from strangers, beginning at less than 1 week of age. b. because infants' vision is so primitive, they cannot visually recognize their mothers until they are about 6 weeks of age. c. prior to birth, the walls of the uterus prevent the sound of the mother's voice from reaching the fetus. d. infants do not seem to be able to distinguish their mother's voices from those of strangers until they are 4 weeks of age.
In a frequency histogram, frequency is usually marked along the ________
a. horizontal (x) axis b. diagonal c. vertical (y) axis d. bar heights