a major strength of the longitudinal design is that researchers can

ATI RN

Human Growth and Development Final Exam

1. What is a major strength of the longitudinal design?

A. Examine relationships between early and later behaviors
B. Collect a large amount of data in a short time span
C. Explore similarities among children of different cohorts
D. Study participants differing in age at the same point in time

Correct answer: A

Rationale: A major strength of the longitudinal design is that researchers can examine relationships between early and later behaviors. This design allows researchers to observe and track changes in the same participants over an extended period of time, providing valuable insights into developmental trajectories and how behaviors are connected across different stages of life. Choice B is incorrect because longitudinal studies track changes over time, not necessarily collect a large amount of data in a short time span. Choice C is incorrect as it refers to cross-sectional studies rather than longitudinal studies. Choice D is incorrect as it describes a cross-sectional design where participants of different ages are studied at the same time.

2. Critics worry that fetal monitoring __________.

A. numbs the entire lower half of the body, making it difficult to feel contractions
B. is not helpful in detecting hidden problems with the baby
C. identifies babies as in danger who, in fact, are not
D. increases the likelihood of infant brain damage

Correct answer: C

Rationale: Critics worry that fetal monitoring may identify babies as in danger who, in fact, are not. This can lead to unnecessary interventions and stress for the parents. It is important to carefully consider the accuracy and benefits of fetal monitoring to avoid unnecessary harm to both the mother and the baby. Choice A is incorrect because fetal monitoring does not cause numbness in the lower half of the body. Choice B is incorrect as fetal monitoring is helpful in detecting hidden problems with the baby. Choice D is incorrect as there is no direct link between fetal monitoring and an increased likelihood of infant brain damage.

3. Jalynn is in the last half of the first month of her pregnancy. Which of the following is developing the fastest?

A. circulatory system
B. endocrine system
C. nervous system
D. skin

Correct answer: C

Rationale: During the last half of the first month of pregnancy, the nervous system develops the fastest among the options provided. This rapid development of the nervous system is crucial for the overall growth and functioning of the fetus. The nervous system includes the brain and spinal cord, which are essential for various bodily functions and will continue to develop throughout the pregnancy. The circulatory system, although important, does not develop at the fastest rate during this stage. The endocrine system and skin also play significant roles in the development of the fetus but are not the systems that develop the fastest in the last half of the first month of pregnancy.

4. During the second month of pregnancy, __________.

A. the umbilical cord first appears as a primitive body stalk
B. touch sensitivity extends to most of the body
C. the heart develops separate chambers
D. the heartbeat can be heard through a stethoscope

Correct answer: C

Rationale: During the second month of pregnancy, the heart of the developing fetus begins to develop separate chambers, forming the structure necessary for a fully functioning heart. This is a significant milestone in the prenatal development process. Choices A, B, and D are incorrect because the appearance of the umbilical cord as a primitive body stalk typically occurs around week 5-6, touch sensitivity extending to most of the body is more characteristic of the end of the second trimester, and the heartbeat is usually detectable through a stethoscope around the 18th to 20th week of pregnancy, not during the second month.

5. How can families prevent escalating demands that lead to chaos?

A. Parental multitasking
B. Eating separate meals
C. Compression of family routines
D. High-quality child care that is affordable and reliable

Correct answer: D

Rationale: High-quality child care that is affordable and reliable can help prevent escalating demands on families that lead to chaos. This is achieved by providing a stable and supportive environment for children, enabling parents to balance work and family responsibilities effectively. Access to reliable child care reduces stress and helps in preventing chaos within the family, ultimately leading to improved well-being for both parents and children. Choices A, B, and C are incorrect as they do not directly address the need for external support to manage family demands and prevent chaos. Parental multitasking, eating separate meals, and compressing family routines may not provide the necessary stability and support required to prevent escalating demands on families.