the corpus luteum
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Nursing Elites

ATI RN

Human Growth and Development Exam 1

1. What is the function of the corpus luteum?

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.

2. Which factor fosters a more positive, coherent early self-concept?

Correct answer: B

Rationale: A warm, sensitive parent-child relationship is crucial in fostering a positive and coherent early self-concept in children. This type of relationship provides support, security, and emotional guidance, helping children develop a strong sense of self-worth and self-identity. Permissive parenting (Choice A) may lead to confusion and inconsistency in discipline, impacting the child's self-concept negatively. Authoritarian parenting (Choice C), characterized by strict rules and a lack of warmth, can result in a child feeling insecure and having a negative self-concept. Strong identification with an other-sex parent (Choice D) may influence gender identity development but may not directly impact the early self-concept in the same way a warm and sensitive parent-child relationship does.

3. In an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade, the independent variable would be the __________.

Correct answer: A

Rationale: In an experimental study, the independent variable is the factor being manipulated or controlled by the researcher. In this case, the frequency of read-alouds is the variable that researchers would intentionally change or vary to see its effect on the dependent variable, which is the children's vocabulary scores. The other options (B. type of books parents read, C. child's vocabulary score, and D. difficulty of vocabulary words) are not the independent variable in this study as they are either irrelevant or are the outcome being measured.

4. Babies who spend more time alert are likely to have __________.

Correct answer: B

Rationale: Babies who spend more time alert are likely to have a slight advantage in mental development. Being alert allows babies to engage with their surroundings, explore, and learn, which can contribute to their cognitive development. This is different from social development, which is more related to interactions with others, and not necessarily impacted by the amount of alertness a baby displays. Choices A, C, and D are incorrect because there is no direct correlation between a baby's alertness and their parents' feelings of incompetence, a big disadvantage in social development, or the effort parents need to soothe them.

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

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.

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