low level radiation resulting from industrial leakage or medical x rays

ATI RN

Human Growth and Development Exam 1

1. Low-level radiation, resulting from industrial leakage or medical X-rays, __________.

A. is harmful only when combined with other teratogens
B. can increase the risk of childhood cancer
C. rarely causes lasting damage
D. is safe during the last trimester

Correct answer: B

Rationale: Low-level radiation, whether from industrial leakage or medical X-rays, can increase the risk of childhood cancer by potentially damaging the developing fetus's cells. Even though the risk is relatively low, it is still a significant concern that should be acknowledged and monitored closely, especially during prenatal development. Choice A is incorrect as low-level radiation can still be harmful on its own without the need to be combined with other teratogens. Choice C is incorrect because low-level radiation exposure can indeed cause lasting damage, especially in the context of childhood cancer risk. Choice D is incorrect because low-level radiation exposure, even during the last trimester, can pose risks to the developing fetus and is not considered entirely safe.

2. What increases from early to middle adulthood?

A. Possible selves
B. Self-doubt
C. Destructiveness
D. Autonomy

Correct answer: A

Rationale: Possible selves are ideas about what one might become in the future, which increase during the transition from early to middle adulthood. This period is characterized by individuals exploring and considering different potential future selves. Self-doubt (choice B) typically decreases as individuals become more confident and self-assured in middle adulthood. Destructiveness (choice C) is not a common developmental trend during this period. Autonomy (choice D) is a concept related to independence and self-governance, which may develop over a person's lifespan but does not specifically increase during the transition from early to middle adulthood.

3. __________ 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.

4. What is a major strength of the clinical interview?

A. Makes comparing individuals' responses very easy
B. Can provide a large amount of information in a fairly brief period
C. Is directed toward understanding a culture or distinct social group
D. Allows researchers to see the behavior of interest as it occurs in natural settings

Correct answer: B

Rationale: The major strength of the clinical interview is that it can provide a large amount of information in a fairly brief period. This allows researchers to gather detailed data about an individual's thoughts, feelings, and behaviors efficiently. Choice A is incorrect because the clinical interview focuses on gathering information from individuals rather than comparing their responses. Choice C is incorrect as clinical interviews are primarily aimed at understanding individuals rather than cultures or social groups. Choice D is incorrect as it describes a strength of naturalistic observations, not clinical interviews.

5. In a historic experiment with 11-month-old Albert, John Watson demonstrated that __________.

A. children cannot be conditioned to fear a formerly neutral stimulus
B. infants as young as a few months old will repeat a behavior to obtain a desirable reward
C. children can be conditioned to fear a formerly neutral stimulus
D. children have an innate, inborn fear of rats Answer: C Page Ref: 16 Skill Level: Understand Topic: Mid-Twentieth-Century Theories Difficulty Level: Moderate

Correct answer: C

Rationale: In the historic experiment with 11-month-old Albert conducted by John Watson, it was demonstrated that children can be conditioned to fear a formerly neutral stimulus. This is known as classical conditioning, where a neutral stimulus is repeatedly paired with an unconditioned stimulus to create a conditioned response. In this case, Albert was conditioned to fear a white rat by pairing the rat with a loud noise. This experiment showcased the power of conditioning in shaping behavior and emotional responses in children.