Examlex
Which of the following is not one of Piaget's cognitive stages?
Weber's Law
A rule which asserts that the minimal discernible change in a stimulus is a constant proportion of the initial stimulus.
Just Noticeable Difference
Just noticeable difference is the minimum difference in stimulation that a person can detect 50% of the time, also known as the threshold of sensory detection.
Grams
A metric unit of mass equal to one thousandth of a kilogram.
Pupil
The part of the eye located in the center of the iris that controls the amount of light entering the eye.
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