Table 2 Definition of factors from behavioral theories

Knowledge

The understanding one has of a key concept.

Facilitator

Factors that could facilitate the performance of the behavior.

Barrier

Factors that could limit the performance of the behavior.

Perceived behavioral control

Subjective probability that a person can execute a certain course of action.

Perceived norms

Beliefs about whether key people (e.g., family or friends) approve or disapprove of the behavior (normative beliefs).

Definitions based on Eldredge et al. (2016). Planning Health Promotion Programs: An Intervention Mapping Approach (15).