External Validity Refers to the Question of Whether the Experimental

question 9

True/False

External validity refers to the question of whether the experimental treatment was the sole cause of observed changes in the dependent variable.

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Definitions:

Repetitious Verbal Mimicking

The act of consistently imitating speech sounds or words, often seen in developmental or neurocognitive disorders.

Autism Spectrum Disorder

A developmental disorder characterized by difficulties in social interaction and communication, along with restricted or repetitive patterns of thought and behavior.

Pervasive Developmental Disorder

A category of developmental disorders that involve delays in the development of many basic skills, often replaced by the term Autism Spectrum Disorder.

Tay-Sachs Disease

A genetic disorder that destroys nerve cells in the brain and spinal cord.