Examlex
Carbon monoxide is the only neurotransmitter that is a gas rather than a liquid.
Standard Deviation
A measure of the amount of variation or dispersion in a set of values.
Raw Scores
The original, unaltered scores obtained directly from a test or assessment without any normalization or transformation.
Test-retest Reliability
This refers to the consistency of scores on a test or assessment when the same individuals take the test again under similar conditions after a time interval.
Interquartile Range
Provides the range of the middle 50% of scores around the median. Because it eliminates the top and bottom quartiles, the quartile range is most useful with skewed curves because it offers a more representative picture of where a large percentage of the scores fall.
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