SOLUTION: Which of the following sets of data would produce the largest value for an independent-measures t statistic?
Answer
a. The two sample means are 9 and 14 with variances of 11 an
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Question 625452: Which of the following sets of data would produce the largest value for an independent-measures t statistic?
Answer
a. The two sample means are 9 and 14 with variances of 11 and 12.
b. The two sample means are 9 and 14 with variances of 35 and 30.
c. The two sample means are 5 and 6 with sample variances of 30 and 35
d. The two sample means are 5 and 6 with variances of 50 and 60.
The estimated standard error, sM, provides a measure of the "average" or standard discrepancy between
Answer
a. a sample mean and the population mean (M and meu)
b. a score and the population mean (X and meu)
c. None of the other options is correct.
d. a score and the sample mean (X and M)
As the sample size increases, what happens to measures of effect size such as r2 and Cohen's d?
Answer
a. Sample size does not have any great influence on measures of effect size.
b. The effect of sample size depends on other factors such as sample variance.
c. They tend to decrease.
d. They also tend to increase.
Which of the following research situations is most likely to use an independent-measures design?
Answer
a. Evaluate the difference in verbal skills between 3-year-old girls and 3-year-old boys.
b. Evaluate the development of verbal skills between age 2 and age 3 for a sample of girls.
c. Evaluate the effectiveness of a cholesterol medication by comparing cholesterol levels before and after the medication
d. Evaluate the effectiveness of a diet program by measuring how much weight is lost during 4 weeks of dieting.
A researcher reports t(22) = 5.30 for an independent-measures experiment. How many individuals participated in the entire experiment?
Answer
a. 25
b. 12
c. 26
d. 24
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