Nursing Elites

1. By using which method of assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups?

• A. sequential
• B. random
• C. systematic
• D. correlational

Correct answer: B

Rationale: By using random assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups. Random assignment helps reduce the likelihood of bias in the selection process and ensures that any differences between groups are due to the treatment and not pre-existing group differences. Sequential, systematic, and correlational assignment methods do not provide the same level of assurance in distributing participants' characteristics equally across treatment groups.

2. Which individual is most likely to experience the greatest percentage of REM sleep?

• A. Sammy, a preschool child
• B. Jake, a full-term newborn
• C. Sarah, a teenager
• D. Cheryl, a preterm newborn Answer: D Page Ref: 104 Copyright © 2018 Laura E. Berk. All Rights Reserved. 32 Test Bank for Berk, Development Through the Lifespan, 7e Skill Level: Apply Topic: The Newborn Baby’s Capacities Difficulty Level: Moderate

Correct answer: D

Rationale: Preterm newborns, like Cheryl, experience a higher percentage of REM sleep compared to full-term newborns. This is because REM sleep plays a critical role in brain development, and preterm infants have an increased need for brain development due to their early arrival. Therefore, Cheryl, as a preterm newborn, is most likely to experience the greatest percentage of REM sleep among the individuals listed.

3. Ecological systems theory views the person as __________.

• A. a blossoming flower whose development is a genetically determined series of events that unfold automatically
• B. developing within a complex system of relationships affected by multiple levels of the surrounding environment
• C. a social being influenced primarily by observational learning or adult modeling
• D. a computer-like system that actively codes, transforms, and organizes information

Correct answer: B

Rationale: Ecological systems theory views the person as developing within a complex system of relationships affected by multiple levels of the surrounding environment. This perspective emphasizes the interconnectedness of individuals with their social and physical environment, recognizing that development is influenced by various factors interacting at different levels of the ecological system. Choice A is incorrect because it describes a genetically determined development process, which is not the focus of ecological systems theory. Choice C is incorrect because it highlights observational learning as the primary influence on development, neglecting the broader environmental factors. Choice D is incorrect as it compares the person to a computer system, which does not align with the principles of ecological systems theory.

4. Which of the following is a self-conscious emotion?

• A. guilt
• B. happiness
• C. interest
• D. fear

Correct answer: A

Rationale: The correct answer is A, guilt. Guilt is a self-conscious emotion that involves reflecting on one's actions and feeling remorse. Self-conscious emotions are those that require self-reflection and self-evaluation. Choices B, C, and D are not self-conscious emotions. Happiness and fear are not self-conscious emotions as they do not necessarily involve self-reflection. Interest is not a self-conscious emotion but rather a feeling of curiosity or attraction towards something.

5. What is a major disadvantage of cross-sectional research?

• A. Age-related changes cannot be examined.
• B. Participants often drop out before the study is over.
• C. Factors affecting individual development cannot be explored.
• D. Practice effects often cause biased findings.

Correct answer: C

Rationale: One major disadvantage of cross-sectional research is that factors affecting individual development cannot be explored thoroughly. Cross-sectional research involves comparing different groups of people at one specific point in time, and does not allow for tracking individual changes over time. This limitation means that the unique influences and trajectories of individual development may be overlooked in cross-sectional studies. Choices A, B, and D are incorrect. Choice A is not a major disadvantage of cross-sectional research as age-related changes can still be compared across different groups in this type of study. Choice B, while a potential issue in any study, is not specific to cross-sectional research. Choice D refers to a different type of bias caused by repeated testing rather than a major disadvantage of cross-sectional research.

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