Answer Happy

The ability of a number in a specified set to assume any value is known as degrees of freedom. a t test. a one-tailed test. a Type II error.
You should use a correlated samples t test when you have a three-group design, you randomly assigned your participants, and your DV is measured on an interval or ratio scale of measurement. you have a two-group design, you used matched pairs, and your DV is measured on an interval or ratio scale of measurement. you have a two-group design, you randomly assigned your participants, and your DV is measured on a nominal or ordinal scale of measur ment. you have a two-group design, you randomly assigned your participants, and your DV is measured on an interval or ratio scale of measurement.