Janice Is Conducting a Study with Four Speech and Language

question 21

Multiple Choice

Janice is conducting a study with four speech and language support students with disfluencies. She wants to examine a new strategy to assist students' stuttering. She collects baseline data by observing the stuttering of her students in their general education classroom twice and then starts the new intervention strategy in the support classroom for 6 sessions. Meanwhile, she observes classroom stuttering. Next, Janice discontinues the new strategy during the support sessions but continues to collect data in the classroom setting two more times.
-Which of the following designs is Janice illustrating?

• A) A-B
• B) A-B-A
• C) B-A-B
• D) A-B-A-B

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Definitions:

Marginal Cost

The extra expense related to the production of an additional unit of a good or service.

Marginal Revenue

The additional income produced from the sale of one more unit of a product or service.

Marginal Cost

The expense incurred from making an extra unit of a product or service.

Perfect Competitor

A hypothetical market condition characterized by an infinite number of small firms, homogeneous products, and free entry and exit from the market.