Answer: Central intelligence Agency (CIA)
Explanation:
Central intelligence agency is a civilian foreign agency service of the United States of America, which have been given the responsibility of gathering and analyzing national security information from around the world through it's source; humans or husn intelligence.
The answer to this question is <span>generalizable
</span><span>generalizable refers to a case study's capability to be implemented into larger sample of the population. </span>In this particular case study, it is really hard to put the result of 53 personality studies into use because it is almost impossible to find all the indicators of the personality unless we know that specific person' for a pretty long time.