What type of attention is described as when people are required to concentrate on a task for an extended period of time?

A research participant is asked to memorize a list of words. The next day, this participant is asked to write all the words on a piece of paper that she can remember were on the list. This type of task illustrates the measurement of memory through

a. serial position. b. recall. c. relearning. d. recognition.

Which statement is correct regarding adolescents currently compared to adolescents in the nineteenth century?

A. Adolescent girls are beginning menstruation earlier. B. Adolescents are exhibiting signs of sexual maturity and puberty much later. C. Adolescents are attaining shorter heights in adulthood. D. Adolescents are exhibiting advanced levels of intellectual and emotional growth much sooner.