Free CRE Research Methodology & Design Questions and Answers — Questions and Answers
Question 1: What is the primary purpose of research design in a study?
- To outline the literature review
- To define the budget
- To structure the study (Correct answer)
- To recruit participants
Correct answer: To structure the study
Research design provides a systematic framework and blueprint for conducting a study, outlining the methods, procedures, and strategies to be used. It dictates how data will be collected, measured, and analyzed to address the research questions or test hypotheses. A well-defined research design ensures the study is logical, coherent, and capable of yielding valid and reliable results.
Question 2: Which of the following is a characteristic of qualitative research?
- Uses statistical analysis
- Collects numerical data
- Emphasizes words and meanings (Correct answer)
- Focuses on generalizability
Correct answer: Emphasizes words and meanings
Qualitative research focuses on understanding experiences, perspectives, and meanings through non-numerical data like interviews, observations, and textual analysis. It aims to explore complex phenomena in depth, providing rich, descriptive insights rather than statistical measurements. This approach allows researchers to delve into the 'why' and 'how' of human behavior and social processes.
Question 3: Which design is best suited for determining cause-effect relationships?
- Descriptive design
- Experimental design (Correct answer)
- Exploratory design
- Case study
Correct answer: Experimental design
Experimental design is specifically structured to establish cause-and-effect relationships by manipulating one or more independent variables and observing their impact on a dependent variable. This is achieved through controlled conditions, random assignment of participants to groups, and comparison between an experimental group and a control group. This rigorous control helps isolate the effect of the manipulated variable.
Question 4: What does a hypothesis provide in a research study?
- Final conclusion
- Background theory
- Research funding
- Testable prediction (Correct answer)
Correct answer: Testable prediction
A hypothesis is a specific, testable statement or educated guess about the relationship between two or more variables. It serves as a tentative explanation for an observed phenomenon that can be supported or refuted through empirical research. The entire research study is often designed to gather data that will either confirm or deny this prediction.
Question 5: What is the main purpose of a literature review?
- To conduct experiments
- To gather primary data
- To summarize related studies (Correct answer)
- To write the abstract
Correct answer: To summarize related studies
A literature review involves systematically identifying, evaluating, and synthesizing existing scholarly work, theories, and research relevant to a particular topic. Its main purpose is to provide context for the current study, identify gaps in existing knowledge, and demonstrate the researcher's understanding of the field. This helps justify the need for the new research and inform its design.
Question 6: What is triangulation in research?
- A geometric model
- Repetition of surveys
- Use of multiple methods (Correct answer)
- Conducting pilot tests
Correct answer: Use of multiple methods
Triangulation in research involves using multiple data sources, methods, theories, or investigators to study the same phenomenon. This approach enhances the credibility and validity of research findings by cross-verifying information and providing a more comprehensive understanding. By looking at the same issue from different angles, researchers can strengthen their conclusions and reduce bias.
Question 7: Which type of variable is manipulated in experimental research?
- Dependent variable
- Confounding variable
- Independent variable (Correct answer)
- Control variable
Correct answer: Independent variable
In experimental research, the independent variable is the factor that the researcher deliberately manipulates or changes to observe its effect. It is the presumed cause in a cause-and-effect relationship. The dependent variable, in contrast, is the outcome that is measured and is expected to change as a result of the independent variable's manipulation.
Question 8: Which sampling method gives every individual an equal chance of selection?
- Convenience sampling
- Snowball sampling
- Stratified sampling
- Simple random sampling (Correct answer)
Correct answer: Simple random sampling
Simple random sampling is a probability sampling method where every individual in the target population has an equal and known chance of being selected for the sample. This method helps ensure that the sample is representative of the population, thereby minimizing sampling bias and increasing the generalizability of the study's findings. It is a cornerstone of statistical inference.
Question 9: What is the function of a control group in research?
- Receives extra treatment
- Has random variables
- Serves as comparison (Correct answer)
- Increases bias
Correct answer: Serves as comparison
In experimental research, a control group is a group of participants who do not receive the experimental treatment or intervention. Its primary function is to provide a baseline for comparison against the experimental group, which does receive the treatment. This allows researchers to isolate the effects of the independent variable and determine if the treatment had a significant impact.
What is the primary purpose of research design in a study?