Why Is It Essential That the Experimental and Control Groups

question 55

Multiple Choice

Why is it essential that the experimental and control groups be treated identically in every respect but one?

• A)so that the dependent variable can be accurately measured
• B)so that the results will apply outside the laboratory setting.
• C)so that if the behavior of the two groups differs,the difference can be credited to the one thing that distinguished the groups from one another.
• D)so that if the behavior of the two groups differs,that difference can be used to establish a functional relationship between the independent and dependent variables.

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Definitions:

Level of Significance

The likelihood of incorrectly dismissing the null hypothesis during a statistical analysis despite it being correct.

Considered Overweight

Classification based on body mass index (BMI), where individuals with a BMI over a certain threshold are regarded as overweight.

College Students

Individuals enrolled in an institution of higher education pursuing undergraduate or postgraduate degrees.

Proportion Increased

A measure indicating how much the ratio of a part to the whole has grown.