in an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade the independent variabl in an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade the independent variabl
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Nursing Elites

ATI RN

Growth and Development Exam

1. In an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade, the independent variable would be the __________.

Correct answer: A

Rationale: In an experimental study, the independent variable is the factor being manipulated or controlled by the researcher. In this case, the frequency of read-alouds is the variable that researchers would intentionally change or vary to see its effect on the dependent variable, which is the children's vocabulary scores. The other options (B. type of books parents read, C. child's vocabulary score, and D. difficulty of vocabulary words) are not the independent variable in this study as they are either irrelevant or are the outcome being measured.

2. What clinical manifestation should be the most suggestive of acute appendicitis?

Correct answer: D

Rationale: The correct answer is D: Colicky, cramping abdominal pain around the umbilicus. This type of pain is a common early sign of acute appendicitis. Rebound tenderness, choice A, is a later sign seen in the physical examination of a patient with appendicitis. Rectal bleeding, as described in choice B, is not typically associated with appendicitis. Abdominal pain that is relieved by eating, as mentioned in choice C, is more indicative of peptic ulcer disease rather than appendicitis.

3. Which is an example of the ego defense mechanism of regression?

Correct answer: D

Rationale: The correct answer is D. Regression involves reverting to an earlier stage of development for comfort. In this case, an adult throwing a temper tantrum is regressing to a childlike behavior when faced with not getting their way, which is a form of seeking comfort associated with earlier development. Choices A, B, and C do not exemplify regression. Blaming the teacher, becoming hysterical after a traumatic event, or seeking a partner similar to a beloved father are not instances of reverting to earlier developmental stages to cope with stress or conflict.

4. A nurse is preparing to administer a blood transfusion. What is the most important action to ensure patient safety?

Correct answer: B

Rationale: The most important action to ensure patient safety when administering a blood transfusion is to verify the patient's identity with two identifiers before starting the transfusion. This step is crucial to prevent transfusion errors, such as giving the blood to the wrong patient. Checking vital signs, ensuring timely administration, and confirming informed consent are also important aspects of blood transfusion safety but verifying the patient's identity is the highest priority to prevent errors.

5. In an investigation of over 120,000 New York City births, babies born even 1 to 2 weeks early __________ than children who experienced a full-length prenatal period.

Correct answer: A

Rationale: In the investigation of over 120,000 New York City births, babies born even 1 to 2 weeks early showed lower reading and math scores at a third-grade follow-up compared to children who experienced a full-length prenatal period. This suggests that being born slightly premature can have an impact on cognitive development, leading to educational challenges later on. Choices B, C, and D are incorrect because the study specifically highlighted lower reading and math scores, not a reduced likelihood of suffering from childhood obesity or neurological impairments, or improved language and social/emotional scores in early childhood.

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