1. To figure out if music volume increases workout intensity, a researcher has ten people listen to music at a medium volume during their first workout, then at a loud volume during their second...


1. To figure out if music volume increases workout intensity, a researcher has ten people listen to music at a medium volume during their first workout, then at a loud volume during their second workout. Is this a between-subjects or within-subjects design?

Group of answer choices

A. Within-Subjects.



B. Between-Subjects



2. A research is interested to know if social media usage increases political engagement. A researcher randomly assigns 60 people to either scroll through Twitter, Facebook, and Instagram for an hour a day, or to avoid social media altogether. Political engagement scores are compared between the two groups. Which test would I use to determine if there are differences between the two groups?

Group of answer choices

A. One-Sample T-Test



B. Independent Groups t-test



C. One-Sample Z-Test



D. Correlated Groups T-Test



3. You want to know if you friend group has higher IQ scores than the population (μ = 100, σ = 15). You give IQ tests to 5 friends. Here are their scores: 95 110 100 105 95.  Are their average scores significantly higher than the population?


Which test would I use to solve this research problem?



A. Independent Groups T-Test

B. One-Sample T-Test



C. One-Sample Z-Test



D. Correlated Groups T-Test











Jun 09, 2022
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