PSYC 3003 Week 5 Quiz - Questions and Answers

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PSYC 3003 Week 5 Quiz - Questions and Answers Question 1 2 out of 2 points The Pearson product moment correlation coe cient is used to assess the association between Selected Answer: a. two quantitative variables. Correct Answer: a. two quantitative variables. Question 2 Having more than two levels of the independent variable is necessary to Selected Answer: c. detect nonlinear relationships. Correct Answer: c. detect nonlinear relationships. Question 3 2 out of 2 points 2 out of 2 points Which of the following provides a visual image of the relationship between two quantitative variables? Selected Answer: a. A scatterplot Correct Answer: a. A scatterplot Question 4 2 out of 2 points Which of the following represents the null hypothesis about the means of the dependent variable in a one-way ANOVA with two levels? Selected Answer: a. The mean in level A is equal to the mean in level B. Correct Answer: a. The mean in level A is equal to the mean in level B. Question 5 2 out of 2 points Which of the following variables a"ects only the outcome variable but not the predictor variable? Selected Answer: b. An extraneous variable Correct Answer: b. An extraneous variable Question 6 Which of the following are necessary in an experimental design? 2 out of 2 points Selected Answer: c. Random assignment and experimental manipulation Correct Answer: c. Random assignment and experimental manipulation Question 7 2 out of 2 points In an experimental design, the group that is not exposed to the manipulation of the independent variable is known as which of the following? Selected Answer: a. The control condition Correct Answer: a. The control condition Question 8 2 out of 2 points In a correlational research design, Jonas finds that r = .82. Jonas’s data demonstrates which of the following? Selected Answer: c. A positive linear relationship Correct Answer: c. A positive linear relationship Question 9 Experimental designs are called one-way designs if they have Selected Answer: d. one independent variable. Correct Answer: d. one independent variable. Question 10 2 out of 2 points 2 out of 2 points An experiment is testing the e"ect of violent radio broadcasts on aggressive behavior. Each participant listens to a violent broadcast and then completes a survey. The participant then listens to a non-violent radio broadcast and completes a second survey. This is an example of a Selected Answer: c. within-participants design. Correct Answer: c. within-participants design. .....continued

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