Nursing Elites

1. An experimental design __________.

• A. allows researchers to gather information in natural life circumstances without altering the participants' experiences
• B. looks at relationships between participants' characteristics and their behavior or development
• C. permits inferences about cause and effect because researchers evenhandedly assign people to treatment conditions
• D. has one major limitation: researchers cannot infer cause and effect

Correct answer: C

Rationale: An experimental design permits inferences about cause and effect because researchers evenhandedly assign people to treatment conditions. This means that researchers can manipulate certain variables and observe the effects on participants, allowing them to determine causation between variables. This is a key strength of experimental research designs. Choices A, B, and D are incorrect because they do not accurately describe the primary purpose or strength of experimental designs. Experimental designs do not focus on gathering information in natural life circumstances (A), looking at relationships between characteristics and behavior (B), or have the limitation of not being able to infer cause and effect (D).

2. According to ecological systems theory, interactions between Marina and her child, Tyler, occur in the __________. Copyright © 2018 Laura E. Berk. All Rights Reserved. 20 Test Bank for Berk, Development Through the Lifespan, 7e

• A. microsystem
• B. mesosystem
• C. exosystem
• D. macrosystem Answer: A Page Ref: 23 Skill Level: Apply Topic: Recent Theoretical Perspectives Difficulty Level: Moderate

Correct answer: A

Rationale: According to ecological systems theory, interactions between Marina and her child, Tyler, occur in the microsystem. The microsystem refers to the immediate social context in which an individual lives, such as interactions with family members, friends, and teachers. Marina and Tyler's interactions within their family unit would be considered part of the microsystem.

3. An ovum bursts from one of a woman's two __________ and is drawn into one of two __________.

• A. ovaries; testes
• B. fallopian tubes; ovaries
• C. corpus luteum; fallopian tubes
• D. ovaries; fallopian tubes Answer: D Page Ref: 76 Skill Level: Remember Topic: Prenatal Development Difficulty Level: Easy

Correct answer: D

Rationale: An ovum bursts from one of a woman's two ovaries and is drawn into one of two fallopian tubes. This is a correct description of the process of ovulation and fertilization in human reproductive anatomy. The ovaries are responsible for producing and releasing eggs, while the fallopian tubes provide a pathway for the egg to travel to the uterus for potential fertilization.

4. During Irina's first week of pregnancy, __________.

• A. heart muscles begin to develop
• B. the zygote multiplies and forms a blastocyst
• C. a primitive brain and spinal cord appear
• D. the embryo can move

Correct answer: B

Rationale: During the first week of pregnancy, the zygote (fertilized egg) undergoes rapid cell divisions and forms a blastocyst. This is a crucial stage where the cells differentiate and specialize, setting the foundation for the development of the embryo. It is during this time that the zygote implants itself into the uterine wall, initiating the process of pregnancy. Choices A, C, and D are incorrect because during the first week of pregnancy, the focus is on the initial development and multiplication of the zygote, not on the development of heart muscles, a primitive brain and spinal cord, or the embryo's ability to move.

5. Dr. O'Connor wants 90-year-old Mr. Takashi to participate in a research study that involves moderate risks. Mr. Takashi is incapable of consenting. Which statement best expresses your advice regarding Mr. Takashi's participation in the study?

• A. He should not be allowed to participate in the study under any circumstances.
• B. He should be allowed to participate in the study regardless of the benefit.
• C. He should be allowed to participate in the study only if his participation will benefit others.
• D. He should be allowed to participate in the study only if it is likely to benefit him directly.

Correct answer: D

Rationale: Mr. Takashi should be allowed to participate in the study only if it is likely to benefit him directly. This decision aligns with the principle of beneficence in research ethics, which emphasizes maximizing benefits and minimizing risks for research participants. Since Mr. Takashi is incapable of giving consent, his participation should be based on the likelihood of direct benefits to him rather than solely for the benefit of others or solely for research purposes. Option A is too restrictive and does not consider potential benefits to Mr. Takashi. Option B is flawed as it disregards the need for the study to benefit Mr. Takashi. Option C focuses on benefiting others, which is not the primary consideration when the participant cannot give consent.

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