Marjorie took a personality test in april. she took the same test in june and got a very similar score. this personality test is:

I believe the answer is: Reliable
In psychological test, the term reliability refers to whether the test would provide the takers with consistent result if initiated again.
The consistent result indicates that the unit of measurement that used in the test is considered as proper.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.