examen 1.docx - Question 1 2.5 out of 2.5 points An independent-measures research study uses a total of 40 participants to compare two treatment

examen 1.docx - Question 1 2.5 out of 2.5 points An...

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Question 1 2.5 out of 2.5 points An independent-measures research study uses a total of 40 participants to compare two treatment conditions. What is the df value for the t statistic for this study? Question 2 2.5 out of 2.5 points A researcher reports t (12) = 2.86, p < .05 for a repeated-measures research study. How many individuals participated in the study? Question 3 2.5 out of 2.5 points One sample has n = 7 scores with SS = 40, and a second sample has n = 5 scores with SS = 80. The pooled variance for these two samples is 120/10 = 12. Question 4 2.5 out of 2.5 points An independent-measures study with n = 6 in each sample produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? Question 5 2.5 out of 2.5 points A repeated-measures study comparing two treatments with n = 4 participants produces M D = 2 and SS = 75 for the difference scores. What is the estimated standard error for the sample mean difference? Question 6 0 out of 2.5 points For the repeated-measures t statistic, df = _____. Question 7 0 out of 2.5 points For a repeated-measures study, if other factors are held constant, then an increase in the sample variance will decrease measures of effect size. Question 8 2.5 out of 2.5 points Repeated-measures designs are particularly well-suited to research studies examining learning or other changes that occur over time. Question 9 0 out of 2.5 points One concern for a repeated-measures study is that the participants in one treatment may have different characteristics than the participants in the other treatment.
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Question 10 0 out of 2.5 points Two separate samples are being used to estimate the population mean difference between two treatment conditions. Which of the following would produce the widest confidence interval?
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