How can you distinguish between a test of association and a test of difference?
a. A test of association is used when the independent and dependent variables are measured at the interval or ration level, while a test of difference is used when the independent variables are measured at the nominal level and the dependent variables are measured at the interval or ratio levels.
b. A test of association is used when the independent and dependent variables are measured at the nominal level, while a test of difference is used when the independent and dependent variables are measured at the interval or ratio level.
c. A test of association is used when the independent variable is measured at the nominal level and the dependent variable is measured at the interval or ratio level, while a test of difference is used when the independent variable is measured at the interval or ratio level and the dependent variable is measured at the nominal level.
d. A test of association is used when the independent variable is measured at the nominal level and the dependent variable is measured at the interval or ratio level, while a test of difference is used when the independent and dependent variables are measured at the nominal level.
Answer a,
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