Table 3.

Vaccines Summary of Results.

Theoretical Foundation	Program Element	Survey Question	Mean (Range) or Frequency
Fidelity of SuperPower Pack activity use	Initial activity use	How many times did you play the game?	Once, 64%
			Twice, 14%
			Thrice, 21%
	Awareness of role model*	Who was the veterinarian superhero for this game?	84% Correct
Opportunity for vicarious experiences and verbal persuasion	Potential for role model identification	I can be like the superhero	2.67 (1-3)
		The superhero is successful in what they do	2.83 (1-3)
		I want to be like the superhero	2.20 (1-3)
Role model embodiment	“Batman Effect”	Will you act like the superhero and tell people to get vaccinated?	5% No
			20% I don’t know
			75% Yes
Positive mastery and physiological experiences	Activity engagement	Emotional engagement: When I played the game, I felt happy. When I played the game, I felt bored (reversed scored)	2.58 (1-3)
		Cognitive engagement: When I played the game, time went by quickly	2.86 (1-3)
		Behavioral engagement: When I played the game, I paid attention to the game	2.44 (1-3)
Participant Demographics	Age	8.74 (6-12)
	Gender	49% girls, 49% boys, < 0.5% additional
	Race/Ethnicity	20% Black, 9% Latinx, 33% More than 1, 2% Asian/Native American, 33% White, 3% Additional

Note: *Some participants listed their own names, versus the activity’s role model, as the veterinarian superhero for this game. These responses were excluded from this question.