Jennie is struggling with whether to give in to peer pressure in order to fit in or whether to be herself, but not have many friends. This is an example of which psychosocial crisis?

A group of researchers is investigating risk for heart disease among people of African descent in the United States and people in Africa. Which risk factor will they find to be highest in urban African Americans?

a) insomnia b) depression c) caffeine intake d) hypertension

All of the following statements about brain development are accurate except

a. myelination is complete in many areas of the brain by the age of 4 years b. pruning of neurons occurs at different rates in different parts of the brain c. the cerebral cortex develops more slowly than the parts of the brain that are responsible for basic body functions d. experience-dependent aspects of the brain are open to the effects of experience as long as those experiences occur before the age of 3 years