The form of matching that the above scenario shows is Range matching.
What is Range Matching?
Range Matching is known to be the act of designing or forming pairs of subjects that their scores are said to have a matching variable which falls within a laid down specified range of scores.
Brittany Aguilera was said to have forms matched pairs when systolic blood pressures fall within 5 mm Hg and as thus she can group the range from 0-1 mm Hg, 1-2 mm Hg , 2-4 mm Hg, 3-5mmHg etc.
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