When Choosing Whether to Put a Research Participant into a Treatment

question 47

Multiple Choice

When choosing whether to put a research participant into a treatment group or a control group,researchers should use

• A)first-in,first-out assignment.
• B)first-in,last-out assignment.
• C)random assignment.
• D)convenience assignment.

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Definitions:

ANOVA

Stands for Analysis of Variance, a statistical method used to compare the means of three or more samples.

Degrees of Freedom

The amount of separate values or magnitudes that a statistical distribution can possess.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of statistical significance.

Sum of Squares

A statistical technique used to describe the total variation in a dataset.