Sample size (or number of clusters) by treatment arms
Preliminary Experiment:
As a baseline setting without varying conditions, all 150 participants will undergo the same treatment, serving as a control group to establish initial discernment abilities.
Main Experiment:
Low Proportion of Fake Reviews, Insurance Present: 100 participants
Low Proportion of Fake Reviews, Insurance Absent: 100 participants
Medium Proportion of Fake Reviews, Insurance Present: 100 participants
Medium Proportion of Fake Reviews, Insurance Absent: 100 participants
High Proportion of Fake Reviews, Insurance Present: 100 participants
High Proportion of Fake Reviews, Insurance Absent: 100 participants