a 20 week old fetus can

ATI RN

Growth and Development Exam

1. A 20-week-old fetus can __________.

A. be stimulated as well as irritated by sounds
B. survive, if born early
C. breathe without oxygen assistance, if born early
D. control its own body temperature Answer: A Page Ref: 80 Skill Level: Understand Topic: Prenatal Development Difficulty Level: Moderate

Correct answer: A

Rationale: A 20-week-old fetus is able to be stimulated as well as irritated by sounds because by this stage of prenatal development, the fetus's auditory system is already well-developed. It can respond to external sounds and may even startle or move in reaction to loud noises.

2. What is largely responsible for the worldwide rise in cesarean deliveries?

A. Use of natural or prepared childbirth
B. Use of a doula
C. Medical control over childbirth
D. Apgar testing

Correct answer: C

Rationale: Medical control over childbirth is largely responsible for the worldwide rise in cesarean deliveries. Cesarean deliveries are often performed due to various medical interventions such as monitoring the progress of labor, fetal distress, and other complications that may arise during childbirth. The increasing use of medical interventions and technology has contributed to the higher rate of cesarean deliveries globally. Choices A, B, and D are incorrect because they do not directly involve the decision-making and interventions typically carried out by medical professionals during childbirth, which are major factors leading to the rise in cesarean deliveries.

3. Baby Gabriella claps her hands after her mother does. Gabriella is displaying __________.

A. reinforcement
B. classical conditioning
C. observational learning
D. adaptation

Correct answer: C

Rationale: Observational learning is when an individual learns by watching others and mimicking their actions or behaviors. In this scenario, Baby Gabriella claps her hands after her mother does, indicating she is learning through observing her mother's behavior and imitating it. The other choices are incorrect: Reinforcement typically involves a consequence that strengthens a behavior, classical conditioning is a type of learning where an association is made between two stimuli, and adaptation refers to the process of adjusting to new conditions.

4. In an experimental study examining whether the way angry encounters end affects children's emotional reactions, the dependent variable would be the __________.

A. way the angry encounters end
B. amount of unresolved anger
C. frequency of angry encounters
D. children's emotional reactions

Correct answer: D

Rationale: In an experimental study examining whether the way angry encounters end affects children's emotional reactions, the dependent variable would be the children's emotional reactions. The dependent variable is the outcome being measured or tested in an experiment. In this study, the researchers are trying to understand how the way angry encounters end influences children's emotions. Therefore, the emotional reactions of the children would be the dependent variable that is being studied and measured in relation to the way angry encounters end. Choices A, B, and C are not the dependent variable in this scenario. While they may be related factors, the main focus of the study is on how the way angry encounters end impacts children's emotional reactions, making children's emotional reactions the dependent variable.

5. Among preschoolers, __________ contributes to gains in emotional self-regulation.

A. permissive child rearing
B. authoritarian child rearing
C. language
D. family size

Correct answer: C

Rationale: Corrected Rationale: Language development plays a crucial role in emotional self-regulation in preschoolers. It enables children to express and manage their emotions effectively. Choices A and B, permissive and authoritarian child rearing styles, focus more on the parenting approach rather than the child's intrinsic development. Family size, as mentioned in choice D, does not directly contribute to gains in emotional self-regulation.