Nursing Elites

1. In field experiments, researchers __________.

• A. selectively assign participants to treatment conditions in natural settings
• B. cannot use random assignment or manipulate treatment conditions
• C. randomly assign participants to treatment conditions in natural settings
• D. have stronger control over the treatment than in the laboratory

Correct answer: C

Rationale: In field experiments, researchers randomly assign participants to treatment conditions in natural settings. This method allows for a higher level of control over potential confounding variables compared to non-random assignment. Random assignment helps ensure that the groups being compared are comparable at the beginning of the study, which strengthens the internal validity of the research findings. Choice A is incorrect because selective assignment may introduce bias. Choice B is incorrect as researchers can use random assignment in field experiments. Choice D is incorrect because field experiments typically have less control over the treatment compared to laboratory experiments.

2. Lily weighed 8 pounds and was 21 inches long at birth. She was __________ than the average baby.

• A. heavier but shorter
• B. heavier and longer
• C. lighter but longer
• D. lighter and shorter

Correct answer: B

Rationale: Lily weighed 8 pounds and was 21 inches long at birth. Being both heavier and longer than average babies typically are at birth, Lily would be considered heavier and longer compared to the average baby. This makes choice B, 'heavier and longer,' the correct answer. Choices A, C, and D are incorrect because Lily was not shorter or lighter than the average baby at birth.

3. When __________, newborn Takeo's toes should fan out and curl as his foot twists in.

• A. a bright light shines in his eyes
• B. his bare foot touches a flat surface
• C. his cheek is stroked near the corner of his mouth
• D. the sole of his foot is stroked from toe to heel

Correct answer: D

Rationale: The correct answer is D because the description of the twisting and fanning out of newborn Takeo's toes suggests the Babinski reflex, which is typically elicited by stroking the sole of the foot from toe to heel. The Babinski reflex is a normal response in newborns and indicates proper neurological development. Choices A, B, and C are incorrect as they do not elicit the specific response described in the question.

4. __________ may heighten the effects of a high-fat diet.

• A. Sex hormones
• B. Over-the-counter medications
• C. Free radicals
• D. Low body weight

Correct answer: C

Rationale: Free radicals may contribute to oxidative stress, increasing the risk of conditions associated with a high-fat diet. When consuming a high-fat diet, the body may produce more free radicals, leading to oxidative damage. Sex hormones, over-the-counter medications, and low body weight do not directly heighten the effects of a high-fat diet like free radicals do.

5. As school-age children move into adolescence, self-concept is increasingly vested in feedback from __________.

• A. close friends
• B. family members
• C. younger children
• D. the inner self

Correct answer: A

Rationale: During adolescence, individuals start to rely more on feedback from close friends to develop their self-concept. Close friends play a significant role during this transitional period as they provide peer validation, support, and influence. Family members, although important, may not hold the same level of influence on self-concept during adolescence as close friends do. Younger children are unlikely to provide the necessary feedback and validation needed during this developmental stage. While self-reflection and understanding the inner self are vital for personal growth, during adolescence, external feedback from close friends tends to have a more pronounced impact on shaping self-concept.

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