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. Which statement provides an example of an age-graded influence?

A. Paul learned to play the violin at a young age.
B. Jack enjoys hiking in the mountains.
C. Sarah prefers reading mystery novels.
D. Alex excels in mathematics.

Correct answer: A

Rationale: The corrected statement 'Paul learned to play the violin at a young age' provides an example of an age-graded influence. This is because learning to play the violin is a behavior that is typical or expected at a certain age, reflecting how age influences individuals' experiences and development. In contrast, choices B, C, and D do not directly relate to age-graded influences. Jack's enjoyment of hiking, Sarah's preference for reading mystery novels, and Alex's proficiency in mathematics are not inherently tied to age-related developmental influences.

3. In his research study, Dr. Johnson gives participants false feedback about their performance. Consequently, Dr. Johnson should use __________ after the research session is over. Copyright Ã‚Â© 2018 Laura E. Berk. All Rights Reserved. 37 Test Bank for Berk, Development Through the Lifespan, 7e

A. informed consent
B. a privacy statement
C. debriefing
D. a placebo Answer: C Page Ref: 39 Skill Level: Apply Topic: Ethics in Lifespan Research Difficulty Level: Moderate

Correct answer: C

Rationale: Dr. Johnson should use debriefing after the research session is over because giving participants false feedback may have affected them psychologically. Debriefing involves explaining the true nature of the study, including any deception that occurred, to the participants in order to protect their well-being and address any lingering concerns or misconceptions they may have. It is an important ethical practice in research to ensure participants are fully informed about the study they were involved in.

4. __________ increases tenfold from the twentieth week until birth.

A. Amniotic fluid
B. Brain weight
C. Fetal length
D. Neuron production

Correct answer: B

Rationale: Brain weight increases tenfold from the twentieth week until birth. This rapid growth and development of the brain during the prenatal period is crucial for setting the foundation for future cognitive and neurological functions. Choices A, C, and D are incorrect because although they also undergo changes during prenatal development, none of them increase tenfold from the twentieth week until birth, unlike brain weight.

5. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within five seconds by __________.

A. a burst of motor activity
B. a period of sleep
C. a rise in Liz's heart rate
D. a drop in Liz's body temperature

Correct answer: A

Rationale: A rise in the baby's heart rate during pregnancy is usually followed within five seconds by a burst of motor activity. This indicates that the baby is responding to stimuli and is an important sign of healthy fetal development. A period of sleep, a rise in Liz's heart rate, or a drop in Liz's body temperature are not typically immediate responses to changes in the baby's heart rate. Sleep is less likely to be a direct response to changes in heart rate, Liz's heart rate is independent of the baby's heart rate changes, and a drop in Liz's body temperature is not a common immediate response to fetal heart rate changes.