CDDN — Certified Developmental Disabilities
Nurse,, WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ (2026/2027)
Question 1
Developmental disability is best defined as:
A. A condition that only affects learning
B. A physical disability acquired after age 21
C. A severe, chronic disability originating before age 22
D. A temporary cognitive delay
Correct Answer: C
Rationale: Developmental disabilities are severe, chronic
conditions that begin before age 22 and cause functional
limitations in major life activities. They are not temporary
and are not limited to learning or physical domains alone.
1
,Question 2
Which condition is considered a developmental disability?
A. Alzheimer's disease
B. Spinal cord injury at age 45
C. Cerebral palsy
D. Parkinson's disease
Correct Answer: C
Rationale: Cerebral palsy originates in early
development and causes long-term functional impairment.
Alzheimer's, spinal cord injury, and Parkinson's are
acquired conditions that occur later in life.
Question 3
A developmental disability is distinguished from an
acquired disability because it:
A. Is always genetic
B. Occurs only in childhood
2
,C. Originates during the developmental period
D. Affects physical function only
Correct Answer: C
Rationale: Developmental disabilities begin during the
developmental period and typically persist lifelong. They
are not exclusively genetic, nor do they affect only
physical function.
Question 4
Which philosophy best guides nursing care for individuals
with intellectual and developmental disabilities (IDD)?
A. Medical dominance
B. Task-oriented care
C. Person-centered practice
D. Institutional efficiency
Correct Answer: C
Rationale: Person-centered practice prioritizes choice,
3
, dignity, and self-determination. It is the foundational
philosophy in developmental disabilities nursing.
Question 5
Intellectual disability is diagnosed based on:
A. IQ score only
B. Adaptive functioning only
C. IQ, adaptive functioning, and onset before age 18
D. School performance
Correct Answer: C
Rationale: The diagnosis of intellectual disability requires
deficits in both intellectual functioning (IQ) and adaptive
functioning, with onset during the developmental period
(before age 18).
Question 6
What IQ score typically indicates a developmental
disability?
4
Nurse,, WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ (2026/2027)
Question 1
Developmental disability is best defined as:
A. A condition that only affects learning
B. A physical disability acquired after age 21
C. A severe, chronic disability originating before age 22
D. A temporary cognitive delay
Correct Answer: C
Rationale: Developmental disabilities are severe, chronic
conditions that begin before age 22 and cause functional
limitations in major life activities. They are not temporary
and are not limited to learning or physical domains alone.
1
,Question 2
Which condition is considered a developmental disability?
A. Alzheimer's disease
B. Spinal cord injury at age 45
C. Cerebral palsy
D. Parkinson's disease
Correct Answer: C
Rationale: Cerebral palsy originates in early
development and causes long-term functional impairment.
Alzheimer's, spinal cord injury, and Parkinson's are
acquired conditions that occur later in life.
Question 3
A developmental disability is distinguished from an
acquired disability because it:
A. Is always genetic
B. Occurs only in childhood
2
,C. Originates during the developmental period
D. Affects physical function only
Correct Answer: C
Rationale: Developmental disabilities begin during the
developmental period and typically persist lifelong. They
are not exclusively genetic, nor do they affect only
physical function.
Question 4
Which philosophy best guides nursing care for individuals
with intellectual and developmental disabilities (IDD)?
A. Medical dominance
B. Task-oriented care
C. Person-centered practice
D. Institutional efficiency
Correct Answer: C
Rationale: Person-centered practice prioritizes choice,
3
, dignity, and self-determination. It is the foundational
philosophy in developmental disabilities nursing.
Question 5
Intellectual disability is diagnosed based on:
A. IQ score only
B. Adaptive functioning only
C. IQ, adaptive functioning, and onset before age 18
D. School performance
Correct Answer: C
Rationale: The diagnosis of intellectual disability requires
deficits in both intellectual functioning (IQ) and adaptive
functioning, with onset during the developmental period
(before age 18).
Question 6
What IQ score typically indicates a developmental
disability?
4
