__________ is a prenatal technique conducted at 15 to 20 weeks of gestation that involves inserting a long, hollow needle into the abdomen to draw a sample of amniotic fluid

Which of the following women has the HIGHEST likelihood of having osteoporosis?

a. Ruth, a 30-year-old white woman b. Beth, a 60-year-old black woman c. Amy, a 60-year-old Asian American woman d. Tish, a 30-year-old black woman

For an independent-groups t test, the value of Cohen's d describes a. the size of the treatment effect

b. the chance of a Type I error. c. the chance of a Type II error. d. the overall chance level in the experiment.