An Advantage of the ABAB Reversal Design Over the ABA

question 64

Multiple Choice

An advantage of the ABAB reversal design over the ABA design is that it:

• A)is less expensive.
• B)allows for fewer alternative explanations for the results.
• C)can be used in clinical research.
• D)is less time consuming.

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Definitions:

Cahn-Ingold-Prelog

A set of rules used for the nomenclature of stereoisomers, aiding in the description of the spatial arrangement of atoms within molecules.

Asymmetric Carbons

Carbon atoms bonded to four different groups, resulting in chirality or the existence of nonsuperimposable mirror images.

Chiral

Describes a molecule that cannot be superimposed on its mirror image, often resulting in different biological activities for each form.

Achiral

Lacking chirality; not having a non-superimposable mirror image.