Operational definitions are at their most controversial in the field of psychology where intuitive concepts, such as intelligence need to be operationally defined before they become amenable to scientific investigation, for example, through processes such as IQ tests.
Ven (sign: VEN) is a global digital currency traded in international financial markets and originally used by members of a social network service, Hub Culture, to buy, share, and trade knowledge, goods, and services.
We've got 36 definitions for NPN Â» What does NPN stand for? What does NPN mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: NPN.