Dr Cross Is Implementing an A-B-A-B Design

question 18

Multiple Choice

Dr. Cross is implementing an A-B-A-B design. Which of the following scenarios best describes an A-B-A-B design?

• A) Dr. Cross assesses baseline anxiety and then introduces video clips of baby animals and then reassesses anxiety.
• B) Dr. Cross introduces video clips of baby animals and then assesses anxiety levels.
• C) Dr. Cross assesses baseline anxiety and then introduces video clips of baby animals, then reassesses anxiety and then the video clips of baby animals are ceased and anxiety levels are assessed again.
• D) Dr. Cross assesses baseline anxiety and then introduces video clips of baby animals, then reassesses anxiety, then the video clips of baby animals are ceased and anxiety levels are assessed, followed by reintroduction of video clips of baby animals and assessment of anxiety levels.

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Definitions:

Ganglion Cells

Retinal neurons that gather visual data from photoreceptors and relay it through the optic nerve to the brain.

Wavelength

Wavelength is the distance between successive peaks of a wave, such as sound waves or electromagnetic waves, often determining its nature and properties.

Brightness

A perception of how luminous an object appears; often influenced by the relative intensity of light it emits or reflects.

Hue

The dimension of color that is determined by the wavelength of light; what we know as the color names blue, green, and so forth.