If other factors are held constant, which of the following sets of data is most likely to produce a ...

If other factors are held constant, which of the following sets of data is most likely to produce a significant value for the repeated-measures t statistic?
 
  a. n = 15 and MD = 2 c. n = 30 and MD = 2
  b. n = 15 and MD = 4 d. n = 30 and MD = 4

Question 2

Assuming that other factors are held constant, which of the following would tend to increase the likelihood of rejecting the null hypothesis?
 
  a. Decrease the sample size
  b. Increase the sample mean difference
  c. Increase the sample variance
  d. None of the other 3 options would increase the likelihood.

Question 3

If other factors are held constant, which of the following sets of data is most likely to produce a significant value for the repeated-measures t statistic?
 
  a. n = 15 and SS = 10 for the difference scores
  b. n = 15 and SS = 100 for the difference scores
  c. n = 30 and SS = 10 for the difference scores
  d. n = 30 and SS = 100 for the difference scores

Question 4

A researcher is using a repeated-measures study to evaluate the difference between two treatments. If the difference between the treatments is consistent from one participant to another, then the data should produce ______.
 
  a. a small variance for the difference scores and a small standard error
  b. a small variance for the difference scores and a large standard error
  c. a large variance for the difference scores and a small standard error
  d. a large variance for the difference scores and a large standard error