PSYC 255 Comprehensive Final Exam –
Introduction to Research | 60 Questions and
Answers | 2026/27 Update | 100% Correct -
LU.
PSYC 255 Comprehensive Final Exam – Introduction to Research
60 Questions and Answers | 2026/27 Update | 100% Correct | Liberty University
Exam Instructions:
• Total Questions: 60
• Time Allowed: 2 hours
• Format: Multiple choice, true/false, and short answer
• Passing Score: 80% (48/60 correct)
SECTION A: MULTIPLE CHOICE
1. What is the primary goal of scientific research?
A) To prove personal beliefs
B) To describe, predict, explain, and control phenomena
,C) To entertain
D) To make money
Correct Answer: B
Rationale: The goal of science is to describe, predict, explain, and control
phenomena through systematic observation and experimentation.
2. What is a "theory" in psychological research?
A) A guess
B) A well-substantiated explanation acquired through the scientific method
C) A personal opinion
D) A hypothesis
Correct Answer: B
Rationale: A theory is a well-substantiated explanation supported by evidence,
not a mere guess.
3. What is the difference between a hypothesis and a theory?
A) They are the same
B) A hypothesis is a testable prediction; a theory is a well-supported explanation
C) A theory is a testable prediction; a hypothesis is a well-supported explanation
D) Neither is testable
Correct Answer: B
Rationale: A hypothesis is a testable prediction, while a theory is a well-supported
explanation based on evidence.
4. What is "operational definition" in research?
A) A vague description of a concept
B) A clear, specific definition of how a variable will be measured
, C) A personal opinion
D) A theory
Correct Answer: B
Rationale: An operational definition specifies how a variable will be measured or
manipulated.
5. What is the independent variable in an experiment?
A) The variable that is measured
B) The variable that is manipulated by the researcher
C) The variable that stays constant
D) The control group
Correct Answer: B
Rationale: The independent variable is manipulated by the researcher to observe
its effect.
6. What is the dependent variable in an experiment?
A) The variable that is manipulated
B) The variable that is measured
C) The variable that stays constant
D) The control group
Correct Answer: B
Rationale: The dependent variable is measured to observe the effect of the
independent variable.
7. What is a "control group" in an experiment?
A) The group that receives the treatment
B) The group that does not receive the treatment
Introduction to Research | 60 Questions and
Answers | 2026/27 Update | 100% Correct -
LU.
PSYC 255 Comprehensive Final Exam – Introduction to Research
60 Questions and Answers | 2026/27 Update | 100% Correct | Liberty University
Exam Instructions:
• Total Questions: 60
• Time Allowed: 2 hours
• Format: Multiple choice, true/false, and short answer
• Passing Score: 80% (48/60 correct)
SECTION A: MULTIPLE CHOICE
1. What is the primary goal of scientific research?
A) To prove personal beliefs
B) To describe, predict, explain, and control phenomena
,C) To entertain
D) To make money
Correct Answer: B
Rationale: The goal of science is to describe, predict, explain, and control
phenomena through systematic observation and experimentation.
2. What is a "theory" in psychological research?
A) A guess
B) A well-substantiated explanation acquired through the scientific method
C) A personal opinion
D) A hypothesis
Correct Answer: B
Rationale: A theory is a well-substantiated explanation supported by evidence,
not a mere guess.
3. What is the difference between a hypothesis and a theory?
A) They are the same
B) A hypothesis is a testable prediction; a theory is a well-supported explanation
C) A theory is a testable prediction; a hypothesis is a well-supported explanation
D) Neither is testable
Correct Answer: B
Rationale: A hypothesis is a testable prediction, while a theory is a well-supported
explanation based on evidence.
4. What is "operational definition" in research?
A) A vague description of a concept
B) A clear, specific definition of how a variable will be measured
, C) A personal opinion
D) A theory
Correct Answer: B
Rationale: An operational definition specifies how a variable will be measured or
manipulated.
5. What is the independent variable in an experiment?
A) The variable that is measured
B) The variable that is manipulated by the researcher
C) The variable that stays constant
D) The control group
Correct Answer: B
Rationale: The independent variable is manipulated by the researcher to observe
its effect.
6. What is the dependent variable in an experiment?
A) The variable that is manipulated
B) The variable that is measured
C) The variable that stays constant
D) The control group
Correct Answer: B
Rationale: The dependent variable is measured to observe the effect of the
independent variable.
7. What is a "control group" in an experiment?
A) The group that receives the treatment
B) The group that does not receive the treatment
