Jake and Jack Are Both Interested in the Effect of the Loud

question 230

Multiple Choice

Jake and Jack are both interested in the effect of the loud music from the dorm room next door on their grades. Jake records the days and hours the music is loud and compares that information to the grades he received on exams taken the days following the loud music. Jack plays his own music loud before his first psychology exam and quietly
Before his second exam. He then compares his exam scores. The primary difference in the way Jake and Jack conducted their research is:

• A) Jack had fewer types of data than did Jake.
• B) Jake took more accurate measurements than Jack.
• C) Jake used correlational data and Jack manipulated a variable.
• D) Jack only looked at psychology exams and Jake used several courses.

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Definitions:

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The long periods over which evolutionary processes such as mutation, selection, and drift act, ranging from thousands to billions of years.

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The process by which organisms that are better adapted to their environment tend to survive and produce more offspring, a key mechanism of evolution.

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The physical measurement of the length or depth of a bird's beak, which can influence its ability to feed and mate.

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