In a(an) developmental psychologists collect a great deal of information from one individual in order to better understand physical and psychological changes over the lifespan.

Case study

Explanation:

A Case study refers to the use of a descriptive research approach to obtain an in-depth analysis of a person, group, or phenomenon. Through a case study, psychologists investigate an specific person or group within their real-life context.

In a case study, researchers gather a great deal of information from one individual, they observe their day-to-day life and describe it in order to have a better understanding of said person and the changes he/she has gone through over his/her lifespan.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx