In 1945 there were ______ members in the United Nations; now there are _______

A researcher decides to study the dating patterns of college students. To do this he goes to a college party and observes the students. This is an example of

A) Archival research methodology. B) Naturalistic observation methodology. C) Field experimentation methodology. D) Case-study methodology.

What statement best defines the term meta-search engine?

a) a list of search engines b) a tool which uses algorithms to find information c) a search engine that provides results of exploring many each engines all at once d) a collection of research institutes and their studies