The college of business was interested in comparing the attendance for three different class times for a business statistics class. The data follow. 
What is the blocking variable?
Definitions:
Management Performance
The effectiveness and efficiency with which managers achieve business objectives, lead teams, and implement strategies.
Emotional Stability
A personality trait that refers to the consistency of an individual's mood and temperament.
Secure Attachment Style
A pattern of relationship behavior characterized by trust, a lack of concern with being abandoned, and the belief that one is worthy and well-liked.
Attachment Style
A theory in psychology that describes the nature of emotional bonds between humans, it categorizes how individuals emotionally bond with others.
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