Author Question: In an experiment on painkillers, the control group received a sugar pill after having a painful ... (Read 130 times)

casperchen82 · **on:** Nov 1, 2021

Question 1

In a recent study, researchers found that as first-year college students' use of social media increased, their reported GPAs decreased. Which of the following correlation coefficients best represents this relationship?
◦ 0.0
◦ +.21
◦ +.34
◦ −.27

Question 2

In an experiment on painkillers, the control group received a sugar pill after having a painful procedure. Over 80 percent of the participants reported less pain after taking the sugar pill. These participants were demonstrating the ____________ effect.
◦ confounding
◦ placebo
◦ blind observer
◦ double-blind

AmberC1996 · **Reply #1 on:** Nov 1, 2021

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