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Table 1 Examples of eligible outcome measures by category (consumption or purchase) and method of measurement

From: Reducing meat consumption by appealing to animal welfare: protocol for a meta-analysis and theoretical review

MeasurementMeat consumptionMeat purchase
ActualAmount of meat (e.g., by weight) that subject self-serves at a buffetTotal cost of meat purchases listed on subject’s last grocery-store receipt
Self-reportedAmount of meat that subject reports having eaten during the past weekAmount of money that subject reports having spent on meat during the past week
IntendedAmount of meat that subject reports intending to eat during the next weekReported willingness to pay for a meat versus non-meat dish