Variable B "screens" variable A from variable C when learning the value of B makes A and C no longer dependent on one another; once you know B, A says nothing about C. Screening is a useful concept, but we are often over eager to apply it. For example:
Beware Ideal Screen Theories
Beware Ideal Screen Theories
Beware Ideal Screen Theories
Variable B "screens" variable A from variable C when learning the value of B makes A and C no longer dependent on one another; once you know B, A says nothing about C. Screening is a useful concept, but we are often over eager to apply it. For example:
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