What Is a "Placebo" in Experimental Research

question 47

Multiple Choice

What is a "placebo" in experimental research?

• A) When an experimenter deceives subjects about the experiment's true nature, then later tells them what it is really about
• B) When subjects in a control group are treated the same as the subjects receiving the treatment
• C) When subjects in the control group receive a false or empty treatment so they do not adjust their behaviour to confirm the experimenter's hypothesis
• D) When neither the subjects nor an assistant helping the experimenter know specifics about the treatment or how hypothesis is being tested
• E) When an event outside the experiment's control occurs during the experiment and affects the dependent variable

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Definitions:

Direct Materials

Raw materials that can be directly attributed to the production of finished goods.

Direct Labor-Hours

Total working hours accrued by employees integral to the manufacturing sequence.

Variable Overhead

Costs of production that vary directly with the volume of output, such as utilities and labor efficiency.

Direct Labor-Hours

The total hours worked by employees directly involved in manufacturing products, used as a basis for assigning labor costs to those products.