Nursing Elites

1. In a longitudinal design, participants are studied repeatedly at different ages, and changes are noted as they get older.

• A. cross-sectional
• B. experimental
• C. longitudinal
• D. correlational

Correct answer: C

Rationale: The correct answer is C: longitudinal. In a longitudinal design, participants are followed and studied over an extended period, allowing researchers to observe changes and continuity in development as individuals age. This design is crucial for understanding how individuals grow and change over time. Cross-sectional studies (Choice A) involve comparing different groups at the same time point, while experimental studies (Choice B) involve manipulating variables to observe their effects. Correlational studies (Choice D) examine relationships between variables but do not involve studying participants over time.

2. Which statement about a blastocyst is true?

• A. It consists of a single cell.
• B. It is a structure that feeds the developing organism.
• C. Between the seventh and ninth days, it burrows deep into the uterine lining.
• D. It is a membrane that helps to keep the temperature of the prenatal world constant.

Correct answer: C

Rationale: The statement that is true about a blastocyst is that between the seventh and ninth days, it burrows deep into the uterine lining. This process, known as implantation, is essential for the blastocyst to establish a connection with the mother's body and receive nutrients for further development. It is a critical stage in prenatal development and sets the foundation for pregnancy. Choices A, B, and D are incorrect. A blastocyst is not a single cell but rather a structure composed of many cells. It is not a structure that feeds the developing organism; instead, it implants in the uterine lining to receive nutrients. It is not a membrane that regulates temperature but plays a crucial role in the initial stages of pregnancy by implanting in the uterus.

3. Which country does not rank well on any key measure of children's health and well-being?

• A. Sweden
• B. Spain
• C. Australia
• D. The United States

Correct answer: D

Rationale: The United States is the correct answer as it ranks poorly in measures of children's health and well-being compared to other developed nations. According to the extract provided, the United States does not perform well in this aspect. Choices A, B, and C are incorrect as there is no information provided suggesting that Sweden, Spain, or Australia do not rank well on key measures of children's health and well-being.

4. In the eighth month of pregnancy, what typically happens?

• A. fetal growth doubles
• B. neuron production increases
• C. the eyes, ears, nose, jaw, and neck form
• D. lanugo typically is shed

Correct answer: D

Rationale: In the eighth month of pregnancy, lanugo typically is shed. Lanugo is the fine, downy hair that covers a fetus's body to help regulate body temperature while in the womb. By the eighth month, many fetuses shed this hair as they prepare for birth. Choices A, B, and C are incorrect because fetal growth doubling, neuron production increasing, and the formation of eyes, ears, nose, jaw, and neck occur in earlier stages of pregnancy, not specifically in the eighth month.

5. Most cognitive aging research has focused on intellectual ________.

• A. stability
• B. gains
• C. competence
• D. deficits

Correct answer: D

Rationale: The correct answer is 'D: deficits.' Most cognitive aging research has indeed focused on deficits rather than stability, gains, or competence. Studies have consistently shown that deficits in processing speed and memory are common in aging individuals, making it a primary area of interest in research. Choices A, B, and C are incorrect because cognitive aging research primarily aims to understand and address deficits associated with aging rather than focusing on stability, gains, or overall competence.

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