A Researcher Conducts Two T Tests

question 11

Multiple Choice

A researcher conducts two t tests.Test 1 is a two-tailed test with a smaller sample size at a .05 level of significance.Test 2 is a two-tailed test with a larger sample size at a .05 level of significance.What do you know about the degrees of freedom for each test?

• A) Test 1 is associated with larger degrees of freedom.
• B) Test 2 is associated with larger degrees of freedom.
• C) Each test is associated with the same degrees of freedom.
• D) It depends; there is not enough information to answer this question.

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Definitions:

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values.

Variability

The extent to which data points in a set differ from each other and from the average of the set, indicating the spread or dispersion.

Double-Blind Study

A double-blind study is a research design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Experimental Group

In an experiment, the group of participants who are exposed to the independent variable to assess its effect on a dependent variable.