Nursing Elites

1. During prenatal development, the ectoderm folds over to form the __________, or primitive spinal cord.

• A. mesoderm; neuron tract
• B. neural tube
• C. endoderm; neural tube
• D. neuron tract

Correct answer: B

Rationale: The correct answer is B. During prenatal development, the ectoderm folds over to form the neural tube, which eventually develops into the brain and spinal cord. The neural tube is the precursor to the central nervous system, including the primitive spinal cord. Choices A, C, and D are incorrect because the mesoderm does not form the neural tube, the endoderm is not involved in the formation of the central nervous system, and neuron tract is not the structure that forms the primitive spinal cord.

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

• A. Permissive parenting
• B. A warm, sensitive parent-child relationship
• C. Authoritarian parenting
• D. Strong identification with an other-sex parent

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.

4. Nine-month-old Avery can retrieve his ball when his mother hides it under a blanket. Avery has begun to master __________.

• A. the tertiary circular reaction
• B. reflexive schemes
• C. object permanence
• D. deferred imitation

Correct answer: C

Rationale: Avery demonstrating the ability to retrieve his ball hidden under a blanket indicates that he has started to understand object permanence. Object permanence is the concept that objects continue to exist even when they are out of sight. This milestone typically occurs around 8-12 months of age. The other choices are incorrect. Option A, the tertiary circular reaction, is related to Piaget's theory of sensorimotor development but does not specifically address object permanence. Reflexive schemes (Option B) refer to simple, reflex-like behaviors and are not directly linked to object permanence. Deferred imitation (Option D) involves the ability to imitate actions observed at an earlier time, which is a different developmental milestone compared to object permanence.

5. Unlike Jean Piaget, Lev Vygotsky viewed cognitive development as a _________ process.

• A. socially mediated
• B. genetically predictable
• C. preoperational
• D. neurological

Correct answer: A

Rationale: Lev Vygotsky viewed cognitive development as a socially mediated process, emphasizing the role of social interactions and cultural influences in shaping a child's cognitive development. This is in contrast to Jean Piaget, who focused more on individual interactions with the environment. Vygotsky believed that cognitive development is significantly influenced by social interactions with others, highlighting the importance of collaborative learning and cultural context. Choices B, C, and D are incorrect as they do not align with Vygotsky's perspective on cognitive development.

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