Nursing Elites

1. By the end of Greta's first month of pregnancy, her embryo __________.

• A. can sense its world
• B. is about ¼ inch long
• C. can suck its thumb
• D. can curl its toes

Correct answer: B

Rationale: By the end of Greta's first month of pregnancy, her embryo is about ¼ inch long. During the first month of pregnancy, the embryo is in the very early stages of development, and its size is typically around ¼ inch as it continues to grow and develop in the uterus. Choices A, C, and D are incorrect because sensory abilities like sensing the world, sucking thumb, and curling toes develop later in the pregnancy as the embryo progresses through different stages of development.

2. Jalynn is in the last half of the first month of her pregnancy. Which of the following is developing the fastest?

• A. circulatory system
• B. endocrine system
• C. nervous system
• D. skin

Correct answer: C

Rationale: During the last half of the first month of pregnancy, the nervous system develops the fastest among the options provided. This rapid development of the nervous system is crucial for the overall growth and functioning of the fetus. The nervous system includes the brain and spinal cord, which are essential for various bodily functions and will continue to develop throughout the pregnancy. The circulatory system, although important, does not develop at the fastest rate during this stage. The endocrine system and skin also play significant roles in the development of the fetus but are not the systems that develop the fastest in the last half of the first month of pregnancy.

3. 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.

4. Which statement describes a strength of naturalistic observation?

• A. It reflects the participants' everyday lives.
• B. It permits comparisons of participants' responses.
• C. Great depth and breadth of information can be obtained in a short time.
• D. It grants each participant an equal opportunity to display the behavior of interest.

Correct answer: A

Rationale: Naturalistic observation reflects the participants' everyday lives because it involves observing individuals in their natural environments without any manipulation. This allows researchers to see how people behave in real-world settings and can provide valuable insights into their typical behavior patterns. Choice B is incorrect because naturalistic observation focuses on observing behavior in its natural setting rather than comparing responses between participants. Choice C is incorrect as naturalistic observation tends to provide rich, qualitative data rather than a large amount of information in a short time. Choice D is incorrect because in naturalistic observation, participants are observed as they naturally behave, which may not always lead to an equal opportunity for all participants to display the behavior of interest.

5. Piaget’s cognitive-developmental theory, information processing, and Vygotsky’s sociocultural theory all stress __________.

• A. nature over nurture
• B. changes in thinking
• C. unconscious motives and drives
• D. the effects of punishment and reinforcement on behavior Answer: B Page Ref: 26 Skill Level: Understand development. Topic: Comparing and Evaluating Theories Difficulty Level: Difficult

Correct answer: B

Rationale: Piaget’s cognitive-developmental theory, information processing, and Vygotsky’s sociocultural theory all stress changes in thinking. These theories focus on how cognitive abilities develop over time, emphasizing the growth and transformation of thinking processes rather than static traits or characteristics.

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