Formulate a final paper based on the interview and observations you have conducted.   
Use the Behavioral Observation Record Forms you have completed on each subject and then review answers to your interview questions to compare your subjects. Discuss the differences you observed and noted between the age groups. 
Also, be sure to include a section on age-appropriate norms you have learned and how they relate or do not relate to your subject.   
You may divide the paper into six sections by headings to separate each child and meet all required areas:  
FOR EXAMPLE, you could have the following headings in your APA paper to address all necessary parts:
Introduction (heading not needed), Subject A, Subject B, Differences observed, Age-Appropriate Norms, Discussion, and Conclusion  
The paper should be between 8-10 pages long, including the title and reference page. Your final paper should follow the guidelines of APA style 7th edition (student version).