the traditional cutoff in diagnosing intellectual disability

ATI RN

Psychological Exam

1. What is the traditional cutoff in diagnosing intellectual disability?

A. IQ score below 80
B. IQ score below 70
C. IQ score below 60
D. IQ score below 50

Correct answer: B

Rationale: The traditional cutoff for diagnosing intellectual disability is an IQ score below 70. An IQ score below 70 is generally considered as the threshold for diagnosing intellectual disability. Choices A, C, and D are incorrect as they do not reflect the commonly accepted cutoff point for diagnosing intellectual disability.

2. How does the concept of neural plasticity relate to recovery from brain injuries?

A. Neural plasticity means the brain cannot recover from injuries.
B. Neural plasticity allows the brain to recover and reorganize after injuries.
C. Neural plasticity refers to the brain's inability to change after injury.
D. Neural plasticity is a myth.

Correct answer: B

Rationale: Neural plasticity allows the brain to recover and reorganize after injuries. It is the brain's ability to adapt and change, forming new connections or reorganizing existing ones to compensate for damage. Choice A is incorrect as neural plasticity enables recovery. Choice C is incorrect as neural plasticity involves the brain's capacity to change. Choice D is incorrect as neural plasticity is a well-established phenomenon in neuroscience.

3. What is the current view of developmentalists regarding important changes throughout the entire human lifespan?

A. Multicultural perspective
B. Lifespan perspective
C. Atypical development
D. Maturation

Correct answer: B

Rationale: The correct answer is 'Lifespan perspective.' This perspective highlights that significant developmental changes occur throughout a person's entire life, emphasizing continuous growth and development. Choice A, 'Multicultural perspective,' refers to the consideration of cultural influences on development rather than the timeline of changes. Choice C, 'Atypical development,' pertains to deviations from typical developmental patterns and is not directly related to the continuous changes across the lifespan. Choice D, 'Maturation,' specifically refers to the biological process of growth and development, which is different from the broader concept of developmental changes occurring across the lifespan.

4. How is pruning best defined?

A. The process of eliminating unused synapses
B. The process of synapse development
C. The connection between neurons
D. Fatty sheath that wraps around neurons and enables them to transmit information more rapidly

Correct answer: A

Rationale: Pruning is the process of eliminating unused synapses in the brain. This process helps the brain to become more efficient by strengthening important connections and eliminating unnecessary ones. Choice B is incorrect because pruning is about eliminating synapses, not developing them. Choice C is incorrect as it refers to the general concept of connections between neurons, not specifically about pruning. Choice D is incorrect as it describes the myelin sheath, which is responsible for rapid transmission of information along neurons, not pruning.

5. What is the term for the age of an unborn baby, usually dated from the first day of an expectant mother's last menstrual cycle?

A. Mental age
B. Chronological age
C. Functional age
D. Gestational age

Correct answer: D

Rationale: The correct answer is D, Gestational age. Gestational age is calculated from the first day of the expectant mother's last menstrual cycle, providing an estimate of how far along the pregnancy is. Mental age (choice A), refers to an individual's level of cognitive functioning in relation to others of the same age group. Chronological age (choice B) is a person's actual age in years. Functional age (choice C) refers to how well a person is able to perform various activities compared to their chronological age.