In 2007, almost ________ percent of births in the United States were to unmarried women

Group productivity is lowest when

a. performance norms are high and the group is very cohesive. b. performance norms are low and the group is not very cohesive. c. performance norms are low and the group is very cohesive. d. performance norms are high and the group is not very cohesive. e. both performance norms and group cohesion are moderate.

Which of the following statements is true regarding the cognitive changes that are experienced in later adulthood?

a) women show less cognitive decline than men b) African-Americans show less cognitive decline than all other ethnic/racial groups in later adulthood c) premature cognitive decline is a very accurate predictor of Alzheimer's disease d) greater cognitive changes are associated with the experience of certain childhood diseases