Why are 
and R-charts used together?
Definitions:
Heider's
Fritz Heider's attribution theory focuses on how people interpret events and relate them to their thinking and behavior.
Balance Theory
A psychological theory proposing that individuals strive for psychological consistency in their relationships and beliefs, leading them to change attitudes or relationships to maintain balance.
Relationships
Connections or associations between people, based on kinship, love, solidarity, professional interactions, or other social commitments.
Aronson and Carlsmith
Researchers known for their work in social psychology, particularly for studies on cognitive dissonance.
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