PROFESSIONAL PRACTICE IN PSYCHOLOGY (EPPP)
PLUS NJ JURISPRUDENCE EXAM PRACTICE
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALE 2026 Q&A| INSTANT
DOWNLOAD PDF
Question 1
A psychologist is conducting a study and wants to minimize the
likelihood of a Type I error. Which action would be most
effective?
A. Increase the sample size
B. Increase statistical power
C. Lower the alpha level from .05 to .01
D. Increase variability in the sample
Rationale: A Type I error occurs when a researcher incorrectly
rejects a true null hypothesis. Lowering the alpha level (e.g.,
from .05 to .01) makes it more difficult to achieve statistical
significance and therefore reduces the probability of a Type I
error. Increasing sample size generally increases power and
may increase the likelihood of detecting significant findings,
while increasing variability generally decreases statistical
precision.
Question 2
According to Piaget, the ability to think abstractly and
systematically emerges during which stage of cognitive
development?
A. Sensorimotor
B. Preoperational
,C. Concrete Operational
D. Formal Operational
Rationale: Piaget proposed that formal operational thought
begins during adolescence and involves abstract reasoning,
hypothetical thinking, and systematic problem-solving. Earlier
stages involve progressively more sophisticated but less
abstract forms of cognition.
Question 3
A psychologist learns that a client has made a credible threat to
kill a former coworker and has identified a specific plan. What is
the psychologist's most appropriate action?
A. Maintain confidentiality without exception
B. Terminate therapy immediately
C. Take reasonable steps to protect the identifiable victim
D. Inform the media
Rationale: The duty to protect, established through case law
and reflected in many state statutes and professional
standards, requires psychologists to take reasonable protective
actions when a client presents a serious threat of violence
toward an identifiable person. Actions may include warning the
intended victim, notifying law enforcement, or arranging
hospitalization, depending on applicable law.
Question 4
Which schedule of reinforcement typically produces the highest
rate of responding and the greatest resistance to extinction?
A. Fixed Ratio
B. Fixed Interval
,C. Variable Interval
D. Variable Ratio
Rationale: Variable ratio schedules provide reinforcement after
an unpredictable number of responses. Because reinforcement
is uncertain but possible with each response, behavior tends to
occur at a high, steady rate and is highly resistant to extinction.
Gambling is a classic example.
Question 5
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is
primarily designed to assess:
A. Intelligence
B. Neuropsychological functioning
C. Personality characteristics and psychopathology
D. Vocational interests
Rationale: The MMPI-2 is a broad-based personality assessment
instrument designed to evaluate personality structure,
emotional functioning, and psychopathology. It includes validity
scales to assess response styles and clinical scales to identify
psychological symptoms and personality features.
Question 6
A psychologist obtains informed consent from a client. Which
element is most essential to informed consent?
A. A guarantee of successful treatment
B. Explanation of risks, benefits, and alternatives
C. Disclosure of all personal information about the therapist
D. Agreement to continue treatment indefinitely
, Rationale: Informed consent requires that clients receive
sufficient information regarding the nature of services, risks,
benefits, alternatives, fees, limits of confidentiality, and other
relevant aspects of treatment so they can make a voluntary and
informed decision.
Question 7
Which neurotransmitter has been most strongly associated
with the positive symptoms of schizophrenia?
A. GABA
B. Serotonin
C. Acetylcholine
D. Dopamine
Rationale: The dopamine hypothesis of schizophrenia suggests
that excessive dopaminergic activity, particularly in mesolimbic
pathways, contributes to positive symptoms such as
hallucinations and delusions. Antipsychotic medications often
work by reducing dopamine activity.
Question 8
A test has high reliability but poor validity. This means that the
test:
A. Measures what it intends to measure accurately
B. Produces inconsistent results
C. Produces consistent results but may not measure the
intended construct
D. Is neither reliable nor valid
Rationale: Reliability refers to consistency of measurement,
whereas validity concerns whether the test measures what it
PLUS NJ JURISPRUDENCE EXAM PRACTICE
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALE 2026 Q&A| INSTANT
DOWNLOAD PDF
Question 1
A psychologist is conducting a study and wants to minimize the
likelihood of a Type I error. Which action would be most
effective?
A. Increase the sample size
B. Increase statistical power
C. Lower the alpha level from .05 to .01
D. Increase variability in the sample
Rationale: A Type I error occurs when a researcher incorrectly
rejects a true null hypothesis. Lowering the alpha level (e.g.,
from .05 to .01) makes it more difficult to achieve statistical
significance and therefore reduces the probability of a Type I
error. Increasing sample size generally increases power and
may increase the likelihood of detecting significant findings,
while increasing variability generally decreases statistical
precision.
Question 2
According to Piaget, the ability to think abstractly and
systematically emerges during which stage of cognitive
development?
A. Sensorimotor
B. Preoperational
,C. Concrete Operational
D. Formal Operational
Rationale: Piaget proposed that formal operational thought
begins during adolescence and involves abstract reasoning,
hypothetical thinking, and systematic problem-solving. Earlier
stages involve progressively more sophisticated but less
abstract forms of cognition.
Question 3
A psychologist learns that a client has made a credible threat to
kill a former coworker and has identified a specific plan. What is
the psychologist's most appropriate action?
A. Maintain confidentiality without exception
B. Terminate therapy immediately
C. Take reasonable steps to protect the identifiable victim
D. Inform the media
Rationale: The duty to protect, established through case law
and reflected in many state statutes and professional
standards, requires psychologists to take reasonable protective
actions when a client presents a serious threat of violence
toward an identifiable person. Actions may include warning the
intended victim, notifying law enforcement, or arranging
hospitalization, depending on applicable law.
Question 4
Which schedule of reinforcement typically produces the highest
rate of responding and the greatest resistance to extinction?
A. Fixed Ratio
B. Fixed Interval
,C. Variable Interval
D. Variable Ratio
Rationale: Variable ratio schedules provide reinforcement after
an unpredictable number of responses. Because reinforcement
is uncertain but possible with each response, behavior tends to
occur at a high, steady rate and is highly resistant to extinction.
Gambling is a classic example.
Question 5
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is
primarily designed to assess:
A. Intelligence
B. Neuropsychological functioning
C. Personality characteristics and psychopathology
D. Vocational interests
Rationale: The MMPI-2 is a broad-based personality assessment
instrument designed to evaluate personality structure,
emotional functioning, and psychopathology. It includes validity
scales to assess response styles and clinical scales to identify
psychological symptoms and personality features.
Question 6
A psychologist obtains informed consent from a client. Which
element is most essential to informed consent?
A. A guarantee of successful treatment
B. Explanation of risks, benefits, and alternatives
C. Disclosure of all personal information about the therapist
D. Agreement to continue treatment indefinitely
, Rationale: Informed consent requires that clients receive
sufficient information regarding the nature of services, risks,
benefits, alternatives, fees, limits of confidentiality, and other
relevant aspects of treatment so they can make a voluntary and
informed decision.
Question 7
Which neurotransmitter has been most strongly associated
with the positive symptoms of schizophrenia?
A. GABA
B. Serotonin
C. Acetylcholine
D. Dopamine
Rationale: The dopamine hypothesis of schizophrenia suggests
that excessive dopaminergic activity, particularly in mesolimbic
pathways, contributes to positive symptoms such as
hallucinations and delusions. Antipsychotic medications often
work by reducing dopamine activity.
Question 8
A test has high reliability but poor validity. This means that the
test:
A. Measures what it intends to measure accurately
B. Produces inconsistent results
C. Produces consistent results but may not measure the
intended construct
D. Is neither reliable nor valid
Rationale: Reliability refers to consistency of measurement,
whereas validity concerns whether the test measures what it
