When an individual is employing an analytic approach in categorizing samples, their performance is facilitated by the representativeness of samples of the category distribution. 

Only a few features of a given sample are taken into account and used to form hypotheses in aid of categorization and generalization. 


New York University

The variance of information samples is determined by how much difference and similarities the samples share with one another. 


Variance of Information Samples


Elio, R., Anderson, J.R. The effects of information order and learning mode on schema abstraction. Memory & Cognition 12, 20–30 (1984). https://doi.org/10.3758/BF03196994

The effects of information order and learning mode on schema abstraction. 

When an individual intakes information without proposing any hypothesis about them, their performance is facilitated when the first samples are of low-variance, and the subsequent samples are higher in their variance.
 
Less biased encoding, but generalization and categorization is more simple and automatic. 



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