,PSYC 255 Quiz 1 | Introduction to Research (2026)
Q&A | Liberty University
1. What is the primary purpose of the "theory-data cycle" in psychological research?
A) To prove a theory as absolute truth
B) To collect data that confirms existing beliefs
C) To use theories to generate hypotheses and test them with data
D) To replace theories with purely empirical observations
Correct Answer: To use theories to generate hypotheses and test them with data
Rationale: The theory-data cycle is a fundamental framework in research where
theories guide the generation of hypotheses, which are then tested through data
collection. This process allows researchers to support, refine, or refute theories based
on empirical evidence. It is not about proving absolute truth or simply confirming
beliefs.
2. A researcher conducts a study to test a specific intervention for a practical problem
in a school setting. This type of research is best classified as:
A) Basic research
B) Applied research
C) Translational research
D) Theoretical research
Correct Answer: Applied research
,Rationale: Applied research is conducted to address practical problems and find
potential solutions. In this case, the researcher's goal is to solve a real-world issue in
a school setting. Basic research aims to enhance general knowledge, while
translational research bridges basic findings to applications.
3. What distinguishes scientific evidence from other ways of knowing, such as
intuition or authority?
A) It is always absolutely certain
B) It relies on empirical observation and systematic testing
C) It is based on personal experience and anecdotal reports
D) It cannot be questioned or falsified
Correct Answer: It relies on empirical observation and systematic testing
Rationale: Scientific evidence is grounded in empirical observation and systematic
testing, which allows for verification and replication. Intuition and authority are not
based on systematic, objective methods. Science is probabilistic, not absolute, and it
is open to falsification.
4. A psychologist studies whether a new therapy reduces anxiety by measuring
anxiety levels before and after treatment. The anxiety level is the:
A) Independent variable
B) Dependent variable
C) Control variable
D) Confounding variable
, Correct Answer: Dependent variable
Rationale: The dependent variable is the outcome that is measured in an
experiment. In this case, the anxiety level is being measured to see if it changes as a
result of the therapy. The independent variable is the therapy itself. A control variable
is held constant, and a confounding variable is an unwanted influence.
5. What is the purpose of a control group in an experiment?
A) To provide a baseline for comparison to the experimental group
B) To ensure all participants receive the treatment
C) To increase the sample size without affecting the results
D) To manipulate the independent variable
Correct Answer: To provide a baseline for comparison to the experimental group
Rationale: The control group serves as a baseline against which the experimental
group is compared. It does not receive the treatment being tested, allowing
researchers to determine the effect of the independent variable. Without a control
group, it is difficult to attribute changes to the treatment.
6. Which of the following is a key characteristic of pseudoscience?
A) It is based on empirical evidence and systematic testing
B) It makes claims that appear scientific but lack scientific support
C) It is always rejected by the scientific community
D) It relies on peer-reviewed research
Q&A | Liberty University
1. What is the primary purpose of the "theory-data cycle" in psychological research?
A) To prove a theory as absolute truth
B) To collect data that confirms existing beliefs
C) To use theories to generate hypotheses and test them with data
D) To replace theories with purely empirical observations
Correct Answer: To use theories to generate hypotheses and test them with data
Rationale: The theory-data cycle is a fundamental framework in research where
theories guide the generation of hypotheses, which are then tested through data
collection. This process allows researchers to support, refine, or refute theories based
on empirical evidence. It is not about proving absolute truth or simply confirming
beliefs.
2. A researcher conducts a study to test a specific intervention for a practical problem
in a school setting. This type of research is best classified as:
A) Basic research
B) Applied research
C) Translational research
D) Theoretical research
Correct Answer: Applied research
,Rationale: Applied research is conducted to address practical problems and find
potential solutions. In this case, the researcher's goal is to solve a real-world issue in
a school setting. Basic research aims to enhance general knowledge, while
translational research bridges basic findings to applications.
3. What distinguishes scientific evidence from other ways of knowing, such as
intuition or authority?
A) It is always absolutely certain
B) It relies on empirical observation and systematic testing
C) It is based on personal experience and anecdotal reports
D) It cannot be questioned or falsified
Correct Answer: It relies on empirical observation and systematic testing
Rationale: Scientific evidence is grounded in empirical observation and systematic
testing, which allows for verification and replication. Intuition and authority are not
based on systematic, objective methods. Science is probabilistic, not absolute, and it
is open to falsification.
4. A psychologist studies whether a new therapy reduces anxiety by measuring
anxiety levels before and after treatment. The anxiety level is the:
A) Independent variable
B) Dependent variable
C) Control variable
D) Confounding variable
, Correct Answer: Dependent variable
Rationale: The dependent variable is the outcome that is measured in an
experiment. In this case, the anxiety level is being measured to see if it changes as a
result of the therapy. The independent variable is the therapy itself. A control variable
is held constant, and a confounding variable is an unwanted influence.
5. What is the purpose of a control group in an experiment?
A) To provide a baseline for comparison to the experimental group
B) To ensure all participants receive the treatment
C) To increase the sample size without affecting the results
D) To manipulate the independent variable
Correct Answer: To provide a baseline for comparison to the experimental group
Rationale: The control group serves as a baseline against which the experimental
group is compared. It does not receive the treatment being tested, allowing
researchers to determine the effect of the independent variable. Without a control
group, it is difficult to attribute changes to the treatment.
6. Which of the following is a key characteristic of pseudoscience?
A) It is based on empirical evidence and systematic testing
B) It makes claims that appear scientific but lack scientific support
C) It is always rejected by the scientific community
D) It relies on peer-reviewed research
