According to the u. s health public service, the definition of the term investigator is

Any person that is responsible for the design, the conduct or to report the the research funded by the PHS or proposed for such funding.

Explanation:

how to know you're in love with someone you've just started getting to know can be a bit tricky because — feelings aside — they are technically still a stranger to you. although you might feel the urge to dive in and start professing your undying love for them asap, it's important to remember that it can be easy to confuse feelings of immense attraction with actual love.

you need to provide the