When Events That Occur During the Course of a Study

question 13

Multiple Choice

When events that occur during the course of a study have a different effect on one group of participants than on another,the possible threat to internal validity is

• A) differential regression.
• B) selection.
• C) history.
• D) additive effects of selection and history.

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Definitions:

Soybean Oil

A vegetable oil extracted from the seeds of the soybean, used in cooking and in the production of various food products and industrial applications.

Unsaturated Fatty Acid

A fatty acid that contains one or more double bonds between carbon atoms, which can influence the fluidity of cell membranes and are often found in plant oils.

Saturated Fatty Acid

A type of fatty acid where all carbon atoms are bonded to hydrogen atoms, without any double bonds.

Lecithin

A fatty substance found in plant and animal tissues, used as an emulsifier in food products, as well as in pharmaceutical and cosmetic formulations.