Final answer:
Three categories for pediatric patient research include cognitive development, language problems, and genetics.
Step-by-step explanation:
Three categories for pediatric patient research include:
- Cognitive development: Researchers may study infants to understand how their cognitive abilities develop at different ages.
- Language problems: Researchers hope to use collected information to help children with language problems.
- Genetics: Understanding the ethical and social issues surrounding the use of medical technology involving genetics is another important category in pediatric patient research.