Purdue University PSY 120 Introduction to
Psychology Comprehensive Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. Psychology is best defined as the scientific study of:
A. Mental illness
B. Conscious and unconscious states
C. Behavior and mental processes
D. Emotions and personality
C. Behavior and mental processes
Psychology is defined as the scientific study of behavior and mental
processes. Behavior refers to observable actions, while mental processes
include thoughts, feelings, and perceptions. The scientific method
distinguishes psychology from philosophy or speculation.
2. The perspective that emphasizes observable behavior is:
A. Cognitive
B. Behavioral
, C. Psychodynamic
D. Humanistic
B. Behavioral
The behavioral perspective, associated with figures like John B. Watson
and B.F. Skinner, focuses strictly on observable actions and how they are
shaped by environmental stimuli, rather than internal mental states.
3. Wilhelm Wundt is known for:
A. Developing psychoanalysis
B. Founding the first psychology laboratory
C. Creating behaviorism
D. Studying operant conditioning
B. Founding the first psychology laboratory
Wundt established the first experimental psychology lab in 1879 in
Leipzig, Germany, marking psychology’s formal beginning as a scientific
discipline.
4. The cognitive perspective focuses on:
A. Unconscious conflicts
B. Observable behaviors
, C. Internal mental processes
D. Biological evolution
C. Internal mental processes
The cognitive perspective examines thinking, memory, perception, and
problem-solving. It views the mind as an information processor, similar
to a computer.
5. A variable manipulated by a researcher is the:
A. Dependent variable
B. Independent variable
C. Control group
D. Correlational factor
B. Independent variable
The independent variable is deliberately changed to observe its effect on
the dependent variable, which is measured as the outcome.
6. Correlation indicates:
A. Causation
B. Prediction only
, C. Association between variables
D. Experimental control
C. Association between variables
Correlation measures the strength and direction of a relationship
between variables but does not prove cause and effect.
7. The placebo effect occurs when:
A. Participants know the hypothesis
B. An inactive treatment produces improvement
C. Data are skewed
D. Results are replicated
B. An inactive treatment produces improvement
The placebo effect occurs when expectations alone lead to perceived or
actual improvements, demonstrating the power of belief in influencing
outcomes.
8. The neuron’s cell body is called the:
A. Axon
B. Soma
Psychology Comprehensive Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. Psychology is best defined as the scientific study of:
A. Mental illness
B. Conscious and unconscious states
C. Behavior and mental processes
D. Emotions and personality
C. Behavior and mental processes
Psychology is defined as the scientific study of behavior and mental
processes. Behavior refers to observable actions, while mental processes
include thoughts, feelings, and perceptions. The scientific method
distinguishes psychology from philosophy or speculation.
2. The perspective that emphasizes observable behavior is:
A. Cognitive
B. Behavioral
, C. Psychodynamic
D. Humanistic
B. Behavioral
The behavioral perspective, associated with figures like John B. Watson
and B.F. Skinner, focuses strictly on observable actions and how they are
shaped by environmental stimuli, rather than internal mental states.
3. Wilhelm Wundt is known for:
A. Developing psychoanalysis
B. Founding the first psychology laboratory
C. Creating behaviorism
D. Studying operant conditioning
B. Founding the first psychology laboratory
Wundt established the first experimental psychology lab in 1879 in
Leipzig, Germany, marking psychology’s formal beginning as a scientific
discipline.
4. The cognitive perspective focuses on:
A. Unconscious conflicts
B. Observable behaviors
, C. Internal mental processes
D. Biological evolution
C. Internal mental processes
The cognitive perspective examines thinking, memory, perception, and
problem-solving. It views the mind as an information processor, similar
to a computer.
5. A variable manipulated by a researcher is the:
A. Dependent variable
B. Independent variable
C. Control group
D. Correlational factor
B. Independent variable
The independent variable is deliberately changed to observe its effect on
the dependent variable, which is measured as the outcome.
6. Correlation indicates:
A. Causation
B. Prediction only
, C. Association between variables
D. Experimental control
C. Association between variables
Correlation measures the strength and direction of a relationship
between variables but does not prove cause and effect.
7. The placebo effect occurs when:
A. Participants know the hypothesis
B. An inactive treatment produces improvement
C. Data are skewed
D. Results are replicated
B. An inactive treatment produces improvement
The placebo effect occurs when expectations alone lead to perceived or
actual improvements, demonstrating the power of belief in influencing
outcomes.
8. The neuron’s cell body is called the:
A. Axon
B. Soma
