What is the term for the procedure in which a woman's ova are removed from her ovaries, and a man's sperm are used to fertilize the ova in a laboratory?

A problem with longitudinal studies is that they ______

a. take longer to run than cross-sectional studies b. don't distinguish age differences from cohort differences c. are less trustworthy than either biographical or cross-sectional studies d. don't track long-term changes among individuals in the study

For months, sixteen-year-old Allison struggled to understand her sexual orientation. Now she knows that she is attracted to other young women, and she has finally gotten the courage to call herself a "lesbian."

According to James Marcia, which identity status would fit Allison BEST? A) Identity diffusion B) Identity achievement C) Identity foreclosure D) Identity moratorium