Table 3.

Hypothesized moderators for meta-regressive or subset analyses

Hypothesized moderator	Possible categories for analysis
Study design	Randomized vs. all other designs
Sex ratio of subjects	0–30% female vs. 30–70% female vs. 70–100% female
Psychological theory/theories underlying the intervention	Mind attribution vs. disgust vs. social norms, etc.
Intensiveness of intervention	Total length of time subjects are exposed to intervention
Length of follow-up between intervention and outcome measurement	Days (continuous) or > 1 day vs. ≤ 1 day
Proximity of the outcome measure to actual meat consumption or purchase	Behaviorally measured vs. self-reported vs. intended consumption or purchase
Scope of meat outcome	All-meat consumption vs. any subset of meats (where studies excluding seafood consumption will be in the latter category)