Between-subjects designs are often used in research on complex cognitive processes because
a. they reduce the variability of observations.
b. they require fewer participants compared to within-subjects designs.
c. they prevent the occurrence of carryover effects.
d. they increase our confidence in the reliability of the results.
Question 2
In an observational study of autistic children, you record how much time each child spends playing alone during a 30 minute observation period. This is an example of the ____ method of quantifying behavior.
a. frequency
b. duration
c. interval
d. individual
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