Explain how psychologists can use both longitudinal studies and cross-sectional studies to examine human behavior across the life span. Give an example of each.

Psychologists use longitudinal studies when they restudy the same group of people over a long period of time. For example, psychologists use longitudinal studies to understand how a group of people who are all associated in a way will develop over time. Cross-sectional studies are useful because they compare people of different ages. This is could be seen in mental health experiments, behavioral differences between ages, and physical health charts. 

Explanation:

im smart

plan is in motion

explanation:

if you don’t have a plan the career path will mean nothing. it’s better to start sooner than later no matter what age. making a plan can you out a lot and prepare you for the real world. have a good day! hope this : )

the answer is c.

by: nicholas dooley