1-    General research: physical and /or, cognitive and/or, psychological and/or, personality, and/or social development (one or more characteristics) during one of the following stages (you can use our textbook as one of your resources):

Middle Adulthood
Late Adulthood
Ending

2-    Comparison study: by conducting observations of a subject (should be an adult in his/her Middle, Late adulthood, or Ending stage) for one or all developmental characteristics for that specific developmental period (Physical, cognitive, and/or socioemotional development). Then you compare your results with a well-known human developmental model or theories to explain your results.