1. N E FFECT AND S OCIAL F ACILITATION S TUDY DESIGN By Jacob Bradburn

2. W HAT ARE T HEY ? Social Facilitation (Competitive Context)– Presence of others can create a competitive environment, increase motivation N- Effect – After a certain number, adding competitors (with constant odds of reward) actually decreases motivation/effort

3. P URPOSE OF S TUDY Want to find and graph how competitiveness changes with numbers of competitors, where inflection point is Quadratic relationship Predicted

4. P REDICTED N E FFECT / S OCIAL F ACILITATION R ELATIONSHIP Inflection Point Y- Competitiveness X- # of Competitors Social Facilitation Dominates N-Effect Dominates AloneFewMany

5. M ETHOD Previous research has shown between 10 and 100 Send out short timed algebraic math quiz Ex. 23=2x+3 What is X? “Please take this quiz. You will be competing in this quiz (alone/ against 10/20/ 30/ 40/ 50/ 60/ 70/ 80/ 90/ 100) students. Those in the top 10% of accuracy and fastest completion speed will receive $10.” Send to U of M students recruited online through email (sample of 20 each condition) Alone as a baseline Compare speeds, find where they significantly differ