A general election is a regularly scheduled election to choose _________.

Failure to rule out an effect that might be due to events that occur during a study introduces

A) additional dependent variables. B) a type of researcher bias. C) the confounding effect of history. D) a threat to statistical validity.

The time and effort spent researching caterers for a wedding, debating preferences, and implementing decisions are all examples of ______.

A. conformity costs B. enterprise costs C. transaction costs D. overhead costs