Introduction & Overview
The social impact calculator visualizes how small prosocial behaviors (e.g., acts of kindness, volunteering) ripple outward to create widespread positive change in communities.
psychology
Key Scientific Theories
Social Network Contagion (Christakis & Fowler)
Prosocial behaviors spread through social networks up to three degrees of separation, meaning your kindness influences your friends' friends' friends.
Theory of Collective Action (Mancur Olson)
Examines how group size, efficacy beliefs, and structural rewards influence individual willingness to cooperate towards public goods and social change.
fitness_center
Evidence-Based Practices
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The Ripple Effect Log
Perform one random act of kindness today. Ask the recipient to pay it forward and document any subsequent positive actions you observe.