n.1. in education, the process of assigning pupils to grades, classes, or subgroups. 2. in statistics, the process of arranging scores in categories, intervals, classes, or ranks.
a form of visual agnosia in which individuals are able to perceive the elements of an object but find it difficult to combine them into a perceptual whole. Typically, symptoms of both apperceptive and associative agnosia are present. Individuals affected by this kind of agnosia can usually draw an object accurately but only through a laborious process.