For an independent-measures research study, the data show a 10-point difference between the two treatment means and a pooled variance of 16. Given this information, the value of Cohen’s d is:

Two samples, each with n = 5 scores, have a pooled variance of 40.  What is the estimated standard error for the sample mean difference?

For a population with a standard deviation of s = 6, what is the z-score corresponding to a score that is 12 points above the mean?

What is the variance of the number set: 1, 2, 2, 5, 5, 5, 5, 10, 20, 45?

A researcher uses a repeated-measures study to compare two treatment conditions with a set of 20 scores in each treatment.  What would be the value of df for the repeated-measures t statistic?

Two samples, each with n = 5 scores, have a pooled variance of 40.  What is the estimated standard error for the sample mean difference?

The average verbal SAT score for the entire class of entering freshmen is 530.  However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530.  What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?

The calculations for ANOVA examines _____________ .

What is an example of an interval variable?

What is the variance of the number set: 1, 2, 2, 5, 5, 5, 5, 10, 20, 45?