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. The negative outcome of Erikson's midlife stage, stagnation, focuses on __________.

• A. role confusion
• B. selflessness
• C. self-indulgence
• D. guilt and shame

Correct answer: C

Rationale: The correct answer is C: 'self-indulgence'. Stagnation in Erikson's midlife stage refers to a lack of growth and self-indulgence, leading to a feeling of unproductiveness. This contrasts with 'role confusion' (A), which is associated with Erikson's adolescence stage, 'selflessness' (B) which is a positive trait, and 'guilt and shame' (D) which are emotions typically associated with earlier stages of development.

3. Lanugo ________.

• A. permits food and oxygen to reach the organism
• B. provides the fetus a cushion against jolts caused by the mother's movements
• C. helps regulate the fetus's body temperature
• D. helps the vernix stick to the skin

Correct answer: D

Rationale: Lanugo helps the vernix stick to the skin. Vernix is a waxy substance that covers the fetus's skin during pregnancy. Lanugo is a fine, downy hair that helps to anchor the vernix to the skin, providing protection and nourishment to the developing fetus. Choices A, B, and C are incorrect as they do not accurately describe the role of lanugo in prenatal development.

4. In a correlational design, researchers __________.

• A. gather information on individuals without altering their experiences
• B. divide events and behaviors of interest into two types: dependent and independent variables
• C. use an evenhanded procedure to assign people to two or more treatment conditions
• D. directly control or manipulate changes in the independent variable

Correct answer: A

Rationale: In a correlational design, researchers gather information on individuals without altering their experiences. Correlational studies examine the relationship between two or more variables without any manipulation or control by the researchers. The researchers simply observe and measure the variables of interest without intervening in any way. Choices B, C, and D are incorrect because they describe aspects related to experimental designs rather than correlational designs. In an experimental design, researchers manipulate variables, assign participants to different treatment conditions, and control changes in the independent variable, which is not the case in correlational studies.

5. __________, a strong type of painkiller used in labor and delivery, blocks sensation.

• A. Anesthetics
• B. Analgesics
• C. Anti-inflammatories
• D. Folic acids

Correct answer: A

Rationale: Anesthetics, such as epidurals, are a strong type of painkiller used in labor and delivery that block sensation. They work by numbing the nerves in the lower part of the spine, providing pain relief during childbirth. Choice B, Analgesics, are pain relievers that reduce pain without causing loss of consciousness, but they are not as strong as anesthetics for labor pain. Choice C, Anti-inflammatories, are medications that reduce inflammation and do not directly block sensation like anesthetics. Choice D, Folic acids, are a type of B vitamin crucial for cell growth and metabolism, not used as painkillers in labor and delivery.

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