1|Page
AGGRESSION AND IMPULSIVE
BEHAVIORS AFTER A TRAUMATIC BRAIN
INJURY
COMPLETE EXAM SOLUTION 2026/2027
– RATED A+
150+ QUESTIONS & ANSWERS WITH
RATIONALES
SECTION 1: EPIDEMIOLOGY & SCOPE OF
THE PROBLEM (Qs 1-20)
Q1. Traumatic brain injury (TBI) is a leading
cause of long-term disability worldwide,
contributing to significant neurological,
psychological, and social impairments.
Beyond physical and cognitive
consequences, TBI profoundly affects:
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a) Only motor function
b) Only memory and attention
c) Personality and behavior, including
emotional regulation and social functioning
d) Only sensory processing
Answer: c) Personality and behavior,
including emotional regulation and social
functioning
Rationale: TBI profoundly affects
personality and behavior, influencing
emotional regulation, social functioning,
and overall quality of life. These changes
represent a major determinant of social
reintegration outcomes .
Q2. According to a systematic review and
meta-analysis, the pooled prevalence of
depression following TBI is approximately:
a) 15.5%
b) 25.3%
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c) 35.35%
d) 49.10%
Answer: c) 35.35%
Rationale: A meta-analysis of 1,882
samples found the pooled prevalence of
depression after TBI was 35.35%. Anxiety
was 28.64%, PTSD was 19.94%, and
cognitive impairment was 49.10% .
Q3. The pooled prevalence of cognitive
impairment following TBI is approximately:
a) 19.94%
b) 28.64%
c) 35.35%
d) 49.10%
Answer: d) 49.10%
Rationale: Cognitive impairment was the
most prevalent neuropsychiatric sequela,
affecting nearly half (49.10%) of TBI
survivors in a large meta-analysis of global
, 4|Page
south populations. These rates are
comparable to statistics from the global
north .
Q4. In a study following TBI patients at 6,
24, and 60 months post-discharge,
approximately what percentage displayed
aggressive behavior at each follow-up
period?
a) 10%
b) 15%
c) 25%
d) 40%
Answer: c) 25%
Rationale: Approximately 25% of
participants were identified as displaying
aggressive behavior at each follow-up
period (6, 24, and 60 months). This group
showed connections with depression,
AGGRESSION AND IMPULSIVE
BEHAVIORS AFTER A TRAUMATIC BRAIN
INJURY
COMPLETE EXAM SOLUTION 2026/2027
– RATED A+
150+ QUESTIONS & ANSWERS WITH
RATIONALES
SECTION 1: EPIDEMIOLOGY & SCOPE OF
THE PROBLEM (Qs 1-20)
Q1. Traumatic brain injury (TBI) is a leading
cause of long-term disability worldwide,
contributing to significant neurological,
psychological, and social impairments.
Beyond physical and cognitive
consequences, TBI profoundly affects:
,2|Page
a) Only motor function
b) Only memory and attention
c) Personality and behavior, including
emotional regulation and social functioning
d) Only sensory processing
Answer: c) Personality and behavior,
including emotional regulation and social
functioning
Rationale: TBI profoundly affects
personality and behavior, influencing
emotional regulation, social functioning,
and overall quality of life. These changes
represent a major determinant of social
reintegration outcomes .
Q2. According to a systematic review and
meta-analysis, the pooled prevalence of
depression following TBI is approximately:
a) 15.5%
b) 25.3%
,3|Page
c) 35.35%
d) 49.10%
Answer: c) 35.35%
Rationale: A meta-analysis of 1,882
samples found the pooled prevalence of
depression after TBI was 35.35%. Anxiety
was 28.64%, PTSD was 19.94%, and
cognitive impairment was 49.10% .
Q3. The pooled prevalence of cognitive
impairment following TBI is approximately:
a) 19.94%
b) 28.64%
c) 35.35%
d) 49.10%
Answer: d) 49.10%
Rationale: Cognitive impairment was the
most prevalent neuropsychiatric sequela,
affecting nearly half (49.10%) of TBI
survivors in a large meta-analysis of global
, 4|Page
south populations. These rates are
comparable to statistics from the global
north .
Q4. In a study following TBI patients at 6,
24, and 60 months post-discharge,
approximately what percentage displayed
aggressive behavior at each follow-up
period?
a) 10%
b) 15%
c) 25%
d) 40%
Answer: c) 25%
Rationale: Approximately 25% of
participants were identified as displaying
aggressive behavior at each follow-up
period (6, 24, and 60 months). This group
showed connections with depression,
