Cross-lagged correlations are done when information about two variables is gathered from the different samples at two different times

If one of your classmates begins her speech by asking, "Where were you when President Kennedy was killed?" she is probably ignoring which characteristic of the class?

a. political affiliation b. gender c. ethnicity d. age

One major advantage of the "electronics wave" used by businesses and professionals is

a. face ?to ?face communication. b. personal satisfaction. c. the saving of time and financial resources. d. impressiveness to customers and other businesses.