In Experiments, Random Assignment Is Used to Avoid __________

question 71

Multiple Choice

In experiments, random assignment is used to avoid __________

• A) selection bias.
• B) the placebo effect.
• C) experimenter bias.
• D) the dependent variable effect.

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Definitions:

Lecithin

A fatty substance found in plant and animal tissues, acting as an emulsifier in food products.

Long-chain Alcohols

Alcohols containing a long chain of carbon atoms, typically more than twelve, used in detergents, emulsifiers, and solvents.

Fatty Acids

Long-chain hydrocarbon molecules with a carboxylic acid group, important as sources of energy and as components of cell membranes.

Sodium Palmitate

A sodium salt of palmitic acid, used in soap making and as a surfactant in cosmetics.