Final answer:
Eddie demonstrates a slow-to-warm-up temperament based on his initial hesitancy and eventual engagement with activities.
Step-by-step explanation:
Eddie's behavior in the children's museum suggests that he has a slow-to-warm-up temperament.
According to Thomas and Chess, babies can be categorized into three temperaments: easy, difficult, or slow to warm up. Unlike easy children who adapt well to change and regulate their emotions, slow-to-warm-up children show initial hesitancy or resistance when encountering new situations but become more comfortable over time.
In Eddie's case, he initially showed no interest in engaging with activities and clung to his father's leg. However, after some encouragement from his father and observing his brother, he eventually joined in and started enjoying himself. This indicates a slow-to-warm-up temperament.