Final answer:
Hand washing and teeth brushing are measurable behaviors directly related to preventing infections, while pain and loss of appetite are subjective symptoms harder to measure. Self-esteem is not directly measurable in the context of infection control.
Step-by-step explanation:
Among the goals related to preventing infection, hand washing is measurable and can be directly influenced through educational interventions. In contrast, pain and loss of appetite are subjective symptoms of disease which, although they can be indicators of infection, are not as straightforward to measure and require methods such as the Wong-Baker Faces pain-rating scale or skin conductance fluctuations to quantify.
In the context of setting measurable goals, self-esteem while influenced by a child's hygiene practices, is not directly related to infection prevention and is more difficult to quantify compared to physical health needs. On the other hand, teeth brushing, similar to hand washing, is a personal hygiene habit that can be measured and encouraged to reduce the risk of oral infections.