In a Document Type Definition (DTD)file,a Plus (+)Symbol Beside an Element

question 21

True/False

In a document type definition (DTD)file,a plus (+)symbol beside an element indicates that it is an optional child element within its parent.

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Definitions:

Behaviour Therapist

A professional who specializes in changing potentially self-destructive or unhealthy behaviors using behavioral therapy techniques.

B.F. Skinner

B.F. Skinner was an influential American psychologist known for his work in behaviorism and for developing the theory of operant conditioning.

Joseph Wolpe

A psychiatrist known for developing systematic desensitization, a technique used to treat phobias and other anxiety disorders.

Behavioural Goals

Specific objectives related to modifying or improving an individual's behavior, often set in therapeutic or educational settings.