Five-month-old Ruby is beginning to recognize that her mother, Opal, does not tend to come to feed her when she is hungry. According to Erikson, Ruby is currently involved in a psychosocial crisis of

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

When the population mean differs from the sample mean, the result is called

a. bias b. statistical regression c. measurement transformation d. sampling error