I am proposing a hypothetical lab experiment where participants are randomly assigned into T(exposure to social norms messaging) and C (neutral messaging).

Each group is then subsequently asked their intent to reduce meat intake along the lines of “How interested are you in eating less meat in the future?” (1 = not at all, 5 = somewhat, 10 = extremely).

Can anyone help me understand how I would then go about measuring whether the 'intention score' increases with exposure to the norms messaging?