Nursing Elites

1. In an experiment, the independent variable __________.

• A. is the one the investigator expects to be influenced by another variable
• B. is the one the investigator expects to cause changes in another variable
• C. cannot be manipulated or controlled by the researcher
• D. is the number that describes how two measures are associated with each other

Correct answer: B

Rationale: In an experiment, the independent variable is the one that the investigator expects to cause changes in another variable. It is the factor that is deliberately manipulated or changed by the researcher to observe its effects on the dependent variable. The purpose of manipulating the independent variable is to study its impact on the outcome, allowing researchers to establish cause-and-effect relationships in their investigations. Choice A is incorrect because the independent variable is not influenced but rather influences another variable. Choice C is incorrect as the independent variable is intentionally manipulated by the researcher. Choice D is incorrect as it refers to a different concept unrelated to the independent variable in an experiment.

2. Dr. Wu observes children’s responses to bullying by watching them play in a park. This is an example of a(n) __________.

• A. ethnographic study
• B. naturalistic observation
• C. structured observation
• D. clinical interview Answer: B Page Ref: 28 Skill Level: Apply Topic: Studying Development Difficulty Level: Moderate

Correct answer: B

Rationale: Dr. Wu's observation of children's responses to bullying by watching them play in a park is an example of naturalistic observation. Naturalistic observation involves observing behavior in a natural setting without any manipulation or intervention. Dr. Wu is simply observing the children's behavior in a real-world setting to gain insights into how they respond to bullying, making it a naturalistic observation.

3. In females, the twenty-third pair of chromosomes is labeled as __________.

• A. an autosome
• B. dizygotic
• C. XX
• D. XY

Correct answer: C

Rationale: In females, the twenty-third pair of chromosomes is indeed labeled as XX. This pair of chromosomes determines the biological sex of females. Choice A, 'an autosome,' is incorrect as autosomes refer to the non-sex chromosomes. Choice B, 'dizygotic,' is incorrect as it relates to twins. Choice D, 'XY,' is incorrect as it represents the chromosome pair found in males.

4. What is one strength of the cross-sectional design?

• A. It provides evidence about individual trends.
• B. It cannot be threatened by cohort effects.
• C. It is not plagued with dropout or practice effects.
• D. It permits longitudinal comparisons. Answer: C Page Ref: 34 Skill Level: Understand Topic: Studying Development Difficulty Level: Moderate

Correct answer: C

Rationale: One strength of the cross-sectional design is that it is not plagued with dropout or practice effects. This is because cross-sectional studies assess different individuals at the same point in time, eliminating the risk of participants dropping out or improving due to repeated measures.

5. __________ theory was the first to stress the influence of the early parent‒child relationship on development.

• A. Darwin’s
• B. Freud’s
• C. Erikson’s
• D. Watson’s Answer: B Page Ref: 15 Skill Level: Remember Topic: Mid-Twentieth-Century Theories Difficulty Level: Easy

Correct answer: B

Rationale: Freud's theory was the first to stress the influence of the early parent‒child relationship on development. Sigmund Freud's psychoanalytic theory emphasized the importance of the child's interactions with caregivers, particularly during the early stages of development, in shaping personality and behavior.

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