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On an exam with M = 52, you have a score of X = 56.  Which value for the standard deviation would give you the highest position in the class distribution?

Which of the following sets of data would produce the largest value for an independent-measures t statistic?

A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants.  Based on this t value, what is the correct decision for a two-tailed test?

A sample has a mean of M = 39.5 and a standard deviation of s = 4.3, and produces a t statistic of t = 2.14.  For a two-tailed hypothesis test with a = .05, what is the correct statistical decision for this sample?

Under what circumstances can a very small treatment effect be statistically significant?

A sample of n = 5 scores has a mean of M = 12.  What is ΣX for this sample?

In a population of scores, X = 83 corresponds to z = –0.50 and X = 93 corresponds to z = +2.00.  What are the values for the population mean and standard deviation?

In an independent-measures ANOVA, individual differences contribute to the variance in the numerator and in the denominator of the F-ratio.  For a repeated-measures ANOVA, what happens to the individual differences in the denominator of the F-ratio.

In an independent-measures hypothesis test, what must be true if t = 0?

For an independent-measures research study, the data show an 8-point difference between the two treatment means and a pooled variance of 4.  Given this information, what is the value of Cohen’s d?