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SUMMARY:The Long-Term Effectiveness of Gamified Inoculation: Mapping Decay
 \, Booster Interventions\, and Diffusion Messages - Rakoen Maertens (Unive
 rsity of Oxford)
DTSTART:20250528T140000Z
DTEND:20250528T150000Z
UID:TALK223615@talks.cam.ac.uk
CONTACT:Miriam Remshard
DESCRIPTION:In this project (N = 8\,525) we longitudinally evaluate the ef
 fectiveness of a gamified inoculation intervention that protects people ag
 ainst vaccine misinformation ("Bad Vaxx"). Across 30 days after the initia
 l intervention (Bad Vaxx or Tetris) we re-invited a subset of participants
  to an item rating task to establish their misinformation discernment skil
 ls. Some participants in the control group were exposed to inoculation "di
 ffusion messages"\, messages generated by inoculated participants to help 
 protect non-inoculated participants. This is the first inoculation longevi
 ty study that maps the inoculation decay curve with daily data points for 
 an entire month. We found that the effects decay completely within the fir
 st two weeks\, unless a booster intervention was administered to top up th
 e effect. We also establish that a key mechanism for the decay of the effe
 ct is forgetting what was learned\, rather than a decline in motivation. M
 eanwhile\, inoculation diffusion messages had little to no effects\, indic
 ating that the scope for spread immunity is likely limited.
LOCATION:Ground Floor Lecture Theatre\, Department of Psychology\, Downing
  Site\, Cambridge
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