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A. Increases

B. Decreases

C. Remains same

D. All of these

A. Above

B. Below

C. Equal to

D. Both a and b

A. Means

B. Means differences

C. Means variances

D. All of these

A. Means

B. Means differences

C. Means variances

D. All of these

A. One

B. Two

C. Three

D. Four

A. True

B. False

A. Difference

B. Mean

C. Square

D. Square root

A. Difference

B. Mean

C. Square

D. Square root

A. Proportion

B. Percent

C. Both

D. None

A. True

B. False

A. T Distribution

B. Student’s t Distribution

C. Both

D. None

A. T Distribution

B. Student’s t Distribution

C. Both

D. None

A. Mean value

B. Mean difference

C. Variance

D. Both a and b

A. T Obtained

B. T Observed

C. T Effect

D. Both a and b

A. True

B. False

A. T Obtained

B. T Observed

C. T Statistic

D. All of these

A. Standard deviation

B. Mean

C. Mean difference

D. All of these

A. Sample variance

B. Population variance

C. Sample size

D. Degrees of freedom

A. It is associated with lesser variability.

B. It has “thicker” tails compared with the z distribution.

C. It is associated with scores being more likely in the middle of the distribution.

D. All of these.

A. It is associated with lesser variability.

B. It has “thicker” tails compared with the z distribution.

C. It is associated with scores being more likely in the middle of the distribution.

D. All of these.

A. It is associated with lesser variability.

B. It has “thicker” tails compared with the z distribution.

C. It is associated with scores being more likely in the middle of the distribution.

D. All of these.

A. 55

B. 58

C. 59

D. There is not enough information to answer this question.

A. The estimated standard error.

B. The sample mean and sample variance.

C. The sample size.

D. The population.

A. η2

B. ω2

C. It depends on the sample size.

D. It depends on the value of the t statistic

A. Same participants were assigned to each group.

B. The population variance is unknown.

C. Participants were observed many times.

D. The data was not normally distribute

A. No, this result is not significant, t(30) = 1.00.

B. Yes, this result is significant, p < .05.

C. No, this result is not significant, t(30) = 0.

D. There is not enough information to answer this question, because the variance in each sample is not given.

A. No, this result is not significant, t(30) = 1.00.

B. Yes, this result is significant, p < .05.

C. No, this result is not significant, t(30) = 0.

A. Researcher A

B. Researcher B

C. The likelihood is the same for both researchers.

D. There is not enough information to answer this question

A. D = 0.83; large effect size

B. D = 0.83; medium effect size

C. D = 0.34; small effect size

D. D = 0.34; medium effect size

A. D = 0.83; large effect size

B. D = 0.83; medium effect size

C. D = 0.34; small effect size

D. D = 0.34; medium effect size

A. T(22) = 1.02, p > .05, d = .16.

B. T(30) = 1.03, p > .05, d = .20.

C. T(60) = 4.05, p < .05, d = .88.

D. T(12) = 2.95, p < .05, d = .32.

A. True

B. False

A. True

B. False

A. True

B. False

A. True

B. False

A. True

B. False

A. True

B. False