A Progressive Neurological Disorder Marked by Abnormal Movements Such as Rigidity

question 72

Multiple Choice

A progressive neurological disorder marked by abnormal movements such as rigidity, bradykinesia, hypokinesia, and hypomimia, as well as significant cognitive changes, is

• A) Alzheimer's.
• B) Pick's.
• C) Parkinson's.
• D) amnestic disorder.

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Definitions:

Construct Validity

Construct validity refers to the extent to which a test or instrument measures the theoretical construct it is intended to measure.

Differential Validity

Differential validity is the extent to which a test predicts outcomes differently for distinct groups, often analyzed to assess fairness across demographics.

Validation Studies

Research conducted to ensure that a tool, test, or method accurately measures what it is supposed to measure.

Concurrent Validity

A measure of how well a new test predicts outcomes according to an established benchmark or criterion test, carried out at the same time.