What is the difference between the terms incidence and cumulative incidence?
What will be an ideal response?
Incidence refers to the percentage of people who have engaged in a certain behavior. Cumulative incidence, on the other hand, refers to the percentage of people who have engaged in that behavior before a certain age.
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At the end of Lauren's participation in a research study, the researcher explains the goals and procedures of the study to her, and gives her an opportunity to ask questions or make comments about her experience
This example illustrates the concept of _______. a. informed consent b. debriefing c. confidentiality d. protection from harm
During meiosis, an oocyte has divided into a secondary oocyte and a polar body. Why would this occur?
a. This is a normal event, which reduces the probability of birth defects. b. This is an abnormal event, in which the oocyte conserves its cytoplasmic content. c. This is an abnormal event, which reduces the probability of birth defects. d. This is a normal event, in which the oocyte conserves its cytoplasmic content.
Which of the following is true of ovaries and egg cells?
A. The ovaries do not connect directly to the fallopian tubes. B. A woman with only one ovary cannot conceive. C. The egg cannot be fertilized outside the fallopian tubes. D. The ovary consists of about 15 or 20 clusters of mammary glands.
Which of the following is true about a vasectomy?
A. It allows the man to assume contraceptive responsibility. B. It involves hospitalizing the man for weeks after the operation. C. It involves permanently blocking a man's Bartholin glands. D. It is a very expensive, long-term method of contraception.