When choosing the levels of the independent variable, it is important
a. to choose equal intervals
b. not to have more than two or three
c. to have no more than one for any experiment
d. to space the stimuli close enough such that overlooking any interesting relationship between the stimuli is unlikely
Question 2
When choosing the levels of the independent variable, it is important
a. not to have more than two or three
b. to focus on the higher levels
c. to focus on the lower levels
d. to cover as much of the range as possible
Controlled Experiments Manipulate a Variable
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