Statistics Review

Which of these is a threat to the internal validity of a longitudinal design?

"The number of words recalled of 25." This is an example of a(n)

A null hypothesis states that there will be

For a between-subjects design, you should have ___ people in each group to achieve .80 power.

All of the following are descriptive statistics EXCEPT

If your DV in a study of OCD is number of handwashes per hour, you are using a ____ scale.

Incorrectly rejecting a true null hypothesis is called a

Values derived from samples that are used as estimates of population values are called

If you are correlating 2 nominal variables, you should run a ____ test.

If you manipulate the IV and control all threats, then you have

If your study is externally valid, then

The probability of rejecting the null when it is false is known as

You are doing inferential statistics if you are