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10. Which of the following research situations would be most likely to use an independent-measures design?...

10. Which of the following research situations would be most likely to use an independent-measures design? – 2pts

a. Examine the development of vocabulary as a group of children mature from age 2 to age 3

b. Examine the long-term effectiveness of a stop-smoking treatment by interviewing subjects 2 months and 6 months after the treatment ends

c. Compare the mathematics skills for 9th -grade boys versus 9th -grade girls

d. Compare the blood-pressure readings before medication and after medication for a group a patients with high blood pressure

11. An independent-measures study comparing two treatment conditions produces a t statistic with df = 18. If the two samples are the same size, how many participants were in each of the samples? – 2pts.

a. 9

b. 10

c. 19

d. 20

12. For which of the following situations would a repeated-measures research design be appropriate? – 2pts

a. Comparing mathematical skills for girls versus boys at age 10

b. Comparing pain tolerance with and without acupuncture needles

c. Comparing self-esteem for students who participate in school athletics versus those who do not

d. Comparing verbal solving skills for science majors versus art majors at a college

13. A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 participants. Which of the following designs would produce 20 scores in each treatment? – 2pts

a. An independent-measures design

b. A repeated-measures design

c. A matched-subjects design

d. All of the other options would produce 20 scores in each treatment.

14. A repeated-measures study uses a total of n = 10 participants to compare two treatment conditions. How many scores are measured in this study, and how many scores are actually used to compute the sample mean and the sample variance? – 2pts

a. 20 measured and 10 used b. 20 measured and 20 used c. 10 measured and 10 used d. 10 measured and 20 used

Expert Solution

milcah answered 7 months ago

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