Interval scales of measurement (IQ tests, anxiety inventories, mental status examinations) are products of man's invention how frequently?

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Quizplus · Accepted Answer

Interval scales of measurement, such as IQ tests, anxiety inventories, and mental status examinations, are always products of human invention. These scales are designed and developed by researchers and psychologists to measure various psychological traits and states, and they do not exist naturally.

Interval Scales of Measurement (IQ Tests, Anxiety Inventories, Mental Status