PSYC 140 COMPREHENSIVE EXAM ACTUAL
QUESTIONS AND ANSWERS - LATEST AND
COMPLETE UPDATE WITH VERIFIED
SOLUTIONS – ASSURED PASS WITH INSTANT
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1. A researcher wants to determine whether sleep deprivation causes impaired
attention in college students. Which research design most directly allows
causal inference?
A. Naturalistic observation
B. Correlational study
C. Randomized controlled experiment
D. Case study
Rationale: Random assignment and manipulation of sleep allow the
researcher to infer causality by controlling for confounding variables.
2. Which level of analysis focuses on neurotransmitter activity and brain
structures?
A. Behavioral
B. Biological
C. Cognitive
D. Sociocultural
Rationale: The biological level of analysis examines physiological processes
underlying behavior and mental activity.
3. In ethical research with human participants, informed consent primarily
ensures that participants:
A. Are paid fairly
B. Understand risks, benefits, and procedures
, C. Receive counseling after participation
D. Know the hypothesis
Rationale: Informed consent requires disclosure of relevant information so
participation is voluntary and knowledgeable.
4. A psychologist observes children on a playground without interacting with
them. This method is best described as:
A. Survey research
B. Naturalistic observation
C. Laboratory experimentation
D. Clinical interviewing
Rationale: Naturalistic observation involves systematic observation in real-
world settings without intervention.
5. Which neuron type carries information from sensory receptors to the central
nervous system?
A. Motor neuron
B. Sensory (afferent) neuron
C. Interneuron
D. Glial cell
Rationale: Sensory neurons transmit incoming sensory information to the
brain and spinal cord.
6. Damage to the hippocampus would most likely impair:
A. Balance
B. Language production
C. Formation of new long-term memories
D. Reflexive responses
Rationale: The hippocampus is critical for consolidating new declarative
memories.
,7. The neurotransmitter most associated with reward and motivation is:
A. Serotonin
B. GABA
C. Dopamine
D. Acetylcholine
Rationale: Dopamine plays a key role in reward pathways and motivated
behavior.
8. Which structure regulates hunger, thirst, and body temperature?
A. Thalamus
B. Hypothalamus
C. Amygdala
D. Cerebellum
Rationale: The hypothalamus maintains homeostasis by regulating basic
drives.
9. A patient with damage to Broca’s area would most likely experience
difficulty with:
A. Understanding spoken language
B. Producing fluent speech
C. Hearing sounds
D. Reading facial expressions
Rationale: Broca’s area is involved in speech production; damage results in
expressive aphasia.
10.The sympathetic nervous system is primarily responsible for:
A. Rest and digestion
B. Fight-or-flight responses
C. Voluntary muscle control
D. Hormone regulation
, Rationale: The sympathetic division prepares the body for stress and
emergency situations.
11.Which sensation occurs when sensory receptors adapt to constant
stimulation?
A. Sensory overload
B. Sensory adaptation
C. Top-down processing
D. Perceptual constancy
Rationale: Sensory adaptation reduces sensitivity to unchanging stimuli over
time.
12.The minimum stimulation needed to detect a stimulus 50% of the time is
called the:
A. Difference threshold
B. Absolute threshold
C. Just-noticeable difference
D. Signal threshold
Rationale: Absolute threshold refers to the lowest level of stimulus detection.
13.Perceiving a whole object when only fragments are visible demonstrates
which Gestalt principle?
A. Proximity
B. Similarity
C. Closure
D. Continuity
Rationale: Closure involves filling in missing information to perceive a
complete object.
14.Classical conditioning was first systematically studied by:
A. B.F. Skinner
QUESTIONS AND ANSWERS - LATEST AND
COMPLETE UPDATE WITH VERIFIED
SOLUTIONS – ASSURED PASS WITH INSTANT
DOWNLOAD PDF.
1. A researcher wants to determine whether sleep deprivation causes impaired
attention in college students. Which research design most directly allows
causal inference?
A. Naturalistic observation
B. Correlational study
C. Randomized controlled experiment
D. Case study
Rationale: Random assignment and manipulation of sleep allow the
researcher to infer causality by controlling for confounding variables.
2. Which level of analysis focuses on neurotransmitter activity and brain
structures?
A. Behavioral
B. Biological
C. Cognitive
D. Sociocultural
Rationale: The biological level of analysis examines physiological processes
underlying behavior and mental activity.
3. In ethical research with human participants, informed consent primarily
ensures that participants:
A. Are paid fairly
B. Understand risks, benefits, and procedures
, C. Receive counseling after participation
D. Know the hypothesis
Rationale: Informed consent requires disclosure of relevant information so
participation is voluntary and knowledgeable.
4. A psychologist observes children on a playground without interacting with
them. This method is best described as:
A. Survey research
B. Naturalistic observation
C. Laboratory experimentation
D. Clinical interviewing
Rationale: Naturalistic observation involves systematic observation in real-
world settings without intervention.
5. Which neuron type carries information from sensory receptors to the central
nervous system?
A. Motor neuron
B. Sensory (afferent) neuron
C. Interneuron
D. Glial cell
Rationale: Sensory neurons transmit incoming sensory information to the
brain and spinal cord.
6. Damage to the hippocampus would most likely impair:
A. Balance
B. Language production
C. Formation of new long-term memories
D. Reflexive responses
Rationale: The hippocampus is critical for consolidating new declarative
memories.
,7. The neurotransmitter most associated with reward and motivation is:
A. Serotonin
B. GABA
C. Dopamine
D. Acetylcholine
Rationale: Dopamine plays a key role in reward pathways and motivated
behavior.
8. Which structure regulates hunger, thirst, and body temperature?
A. Thalamus
B. Hypothalamus
C. Amygdala
D. Cerebellum
Rationale: The hypothalamus maintains homeostasis by regulating basic
drives.
9. A patient with damage to Broca’s area would most likely experience
difficulty with:
A. Understanding spoken language
B. Producing fluent speech
C. Hearing sounds
D. Reading facial expressions
Rationale: Broca’s area is involved in speech production; damage results in
expressive aphasia.
10.The sympathetic nervous system is primarily responsible for:
A. Rest and digestion
B. Fight-or-flight responses
C. Voluntary muscle control
D. Hormone regulation
, Rationale: The sympathetic division prepares the body for stress and
emergency situations.
11.Which sensation occurs when sensory receptors adapt to constant
stimulation?
A. Sensory overload
B. Sensory adaptation
C. Top-down processing
D. Perceptual constancy
Rationale: Sensory adaptation reduces sensitivity to unchanging stimuli over
time.
12.The minimum stimulation needed to detect a stimulus 50% of the time is
called the:
A. Difference threshold
B. Absolute threshold
C. Just-noticeable difference
D. Signal threshold
Rationale: Absolute threshold refers to the lowest level of stimulus detection.
13.Perceiving a whole object when only fragments are visible demonstrates
which Gestalt principle?
A. Proximity
B. Similarity
C. Closure
D. Continuity
Rationale: Closure involves filling in missing information to perceive a
complete object.
14.Classical conditioning was first systematically studied by:
A. B.F. Skinner
