Exam 9: The Basics of Experimentation and Testing for a Difference Between Means

The test may be used to statistically analyze the scores of a one-factor within-subjects design with two levels of the independent variable.

The formula for trel is.

The power of tind can be increased by.

If the results of an experiment using tind were summarized as t(48) = 1.632, p > .05, then you would know that the total number of participants used (N) was and the null hypothesis was.

The denominator of tind is.

An independent variable must have at least levels.

The 95 percent confidence interval for the difference between two independent population means is given by.

Extensive variation in the measure of the dependent variable in an experiment will.

When two or more groups are used in an experiment, the number of subjects in each group is indicated by.

If the results of an experiment using tind were summarized as t(30) = 2.817, p < .05, then you would know that the total number of participants used (N) was and the null hypothesis was.

Which of the following is a criticism of statistical hypothesis testing?

The rejection region for tind represents the values of t that have a probability alpha if .

For tind, H0.

The degrees of freedom for tind are found by.

The numerator of tind is.

For tind, is obtained by. $\eta ^ { 2 }$

If tobs falls into a rejection region, then.

The null hypothesis for tind is H0:.

If H0 is rejected when tind falls into either the extreme left or extreme right region of the sampling distribution, then it is called a test.

The standard error of the difference between means is given by