Which of the following statements about the development of language over time is true?
a.
languages remain static and unchanging over time.
b.
languages can be influenced by internal forces but are rarely affected by outside cultures.
c.
most people who speak the same language have identical vocabulary and pronunciation, no matter where they live.
d.
languages are always changing and are influenced by trade, communication, and migration.

select the best answer from the choices provided.

a
b
c
d

Match the item to the definition: indirect correlation, correlational research, correlational research, covary, pearson correlation coefficient, pearson correlation coefficient, direct correlation a. used to describe the relationship between two or more naturally occurring variables b. determines whether scores on the two variables covary c. whether two variables vary or change together d. denoted by the symbol "r" e. provides information about the sign (direction) and magnitude(strength) of the linear relationship. f. when the correlation is positiveg. when the correlation is negative