How could a father use the reference group effect to encourage his young son to eat more vegetables?

Question

Quizplus · Accepted Answer

The father should use the reference group effect by arranging for his son's vegetable-loving friends to come over and eat lunch. Children often look up to their peers and are more likely to adopt behaviors displayed by their friends. By having friends who enjoy eating vegetables, the son may be more motivated to try them himself. Option A is not as effective, as using guilt or the plight of others is not a positive reinforcement technique. Option C is also not recommended, as it can be too harsh and could create negative associations with vegetables.

How Could a Father Use the Reference Group Effect to Encourage