Which of the Following Statements Is True of a Control

question 143

Multiple Choice

Which of the following statements is true of a control group?

• A)It is always measured in the "observational" sense.
• B)It provides a baseline for evaluating the effects of the experimental manipulation.
• C)It is one of the levels of the dependent variable.
• D)all of these
• E)none of these

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Definitions:

Mean

The arithmetic average of a set of values, calculated as the sum of all values divided by the total number of values.

Deviation

The amount by which a single measurement differs from a fixed value such as the mean or expected value.

Normal Curve

A symmetrical, bell-shaped curve representing the distribution of values, scores, or measurements where most occurrences take place near the average.

Scores

Quantitative values assigned or obtained to represent certain characteristics or outcomes in data.