Many cultures transmitted complex knowledge from one generation to the next without writing or printing. What property of oral language permits the transmission of knowledge across generations?

Among the major principles guiding attraction and

relationship formation, _____ plays a more important role when a relationship moves to deeper levels. A) proximity B) similarity C) reciprocity D) serendipity

Which of the following is probably most useful in studies in which extreme scores sometimes occur but have no real practical significance?

a. mean b. median c. average d. none of the above