Which Study Is an Example of a Single-Subject Design

question 81

Multiple Choice

Which study is an example of a single-subject design?

• A) A teacher working with an autistic child tries an intervention, sees improvement, then stops the intervention, and sees the improvement disappear. She then re-introduces the intervention and again sees improvement, and then stops it and sees the improvement again go away.
• B) A therapist intensively studies a person with multiple personality disorder, collecting a rich set of data on their childhood, background, parents, and other details.
• C) A researcher studies anxiety disorders, and only anxiety disorders. He excludes all other subjects from the content of his research.
• D) A researcher wants to understand the effects of age on memory, and selects one subject from each decade of life to study in detail.

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Definitions:

Hypnotism

A trance-like state of focused attention, reduced peripheral awareness, and increased responsiveness to suggestion.

Syndromes

A collection or set of symptoms and signs that are often found together and characterize a particular disease or medical condition.

Groups of Symptoms

Refers to a set or cluster of signs and symptoms that frequently occur together and characterize a particular disorder or disease.

Diatheses

An inherent vulnerability or predisposition in an individual that makes them more susceptible to developing disorders or diseases.