Dr. Devalle is conducting interviews, collecting background information, and running a series of tests on a single individual over a series of years. She is conducting a(n)

She is conducting a(n) case study.

Explanation:

Case study is a research tool and a learning technique that can be applied in any area of knowledge. The fundamental objective of case studies is to know and understand the particularity of a situation, event or concrete case in order to distinguish how the parts work and the relationships with the whole, that is, it takes into account mainly its internal characteristics but also the context in which it occurs. The techniques most used in the case studies are observation and questionnaire application.

is this from a story?

if so, can you tell which one?

~courtney

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.