Nursing Elites

1. Men with even tiny amounts of dioxin in their bloodstream father __________.

• A. nearly twice as many girls as boys
• B. nearly three times as many boys as girls
• C. more twins and triplets than unaffected men
• D. fewer children than unaffected men

Correct answer: A

Rationale: Men with even tiny amounts of dioxin in their bloodstream father nearly twice as many girls as boys. This is due to the impact of dioxin exposure on sperm cells, leading to a skewed ratio of female to male offspring. Choice B is incorrect as the question specifically mentions that men father more girls than boys. Choice C is incorrect as dioxin exposure does not necessarily lead to more twins and triplets. Choice D is incorrect as men with dioxin in their bloodstream father more girls, not fewer children overall.

2. Like longitudinal research, cross-sectional studies can be threatened by __________.

• A. practice effects
• B. participant dropout
• C. sequential timing
• D. cohort effects

Correct answer: D

Rationale: Cross-sectional studies can be threatened by cohort effects because different age groups may have experienced different historical or social contexts, influencing the results. This disparity can lead to invalid comparisons between age groups, confounding the study's findings. Option A, practice effects, refer to changes in participants' behavior due to repeated testing, not a specific threat to cross-sectional studies. Participant dropout (Option B) is a threat related to attrition in longitudinal studies, not cross-sectional studies. Sequential timing (Option C) does not pose a threat to cross-sectional studies; instead, it refers to the order of tasks in a study design.

3. According to Erikson, __________ occurs when aging adults feel they have made many wrong decisions, yet time is too short to find an alternate route to integrity.

• A. mistrust
• B. despair
• C. stagnation
• D. isolation

Correct answer: B

Rationale: According to Erikson's theory of psychosocial development, despair is the stage that aging adults face when they reflect on their life and feel they have not achieved their goals, with little time left to correct their mistakes. Mistrust (choice A) is associated with infancy, stagnation (choice C) with middle adulthood, and isolation (choice D) with young adulthood, and are not relevant to the described scenario of aging adults reflecting on their life decisions.

4. The information-processing perspective __________.

• A. examines separate aspects of thinking
• B. fails to consider biological influences on cognitive development
• C. applies only to children in cultures having formal schooling
• D. focuses on overall cognitive change

Correct answer: A

Rationale: The information-processing perspective focuses on how individuals process, store, and retrieve information. Choice A, 'examines separate aspects of thinking,' accurately reflects this perspective. The other choices are incorrect. Choice B is incorrect because the information-processing perspective does consider biological influences on cognitive development. Choice C is incorrect as this perspective is not limited to children in cultures with formal schooling. Choice D is incorrect as the information-processing perspective does not focus on overall cognitive change, but rather on the specific processes involved in information processing.

5. What is the function of the corpus luteum?

• A. is where fertilization usually takes place
• B. secretes hormones that prepare the lining of the uterus to receive a fertilized ovum
• C. is one of two long, thin structures that lead to the hollow, softly lined uterus
• D. is one of two walnut-sized organs located deep inside a woman's abdomen

Correct answer: B

Rationale: The correct answer is B. The corpus luteum is a temporary endocrine structure in the ovary that forms after ovulation. It secretes hormones, particularly progesterone, which help prepare the uterine lining for possible implantation of a fertilized ovum. This process is crucial for maintaining a potential pregnancy. Choices A, C, and D are incorrect. Choice A is inaccurate as fertilization typically occurs in the fallopian tubes. Choice C describes the fallopian tubes, not the corpus luteum. Choice D refers to the ovaries, not specifically the corpus luteum.

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