Scientists are always thinking about ways to improve experimental design. In the text's potato chip experiment, which

of these changes would produce the most effective design?



a. Show a different movie.
b. Exclude teenagers as group members.
c. Collect uneaten chip remains and weigh them for both groups.
d. Provide free drinks before the experiment.
e. Use a smaller theater.


ANSWER: c

Biology & Microbiology

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