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Questions and Answers
What is a characteristic feature of descriptive research?
What is a characteristic feature of descriptive research?
In correlational research, what is the primary aim?
In correlational research, what is the primary aim?
What distinguishes quasi-experimental research from true experimental research?
What distinguishes quasi-experimental research from true experimental research?
Which group in experimental research receives the treatment or intervention?
Which group in experimental research receives the treatment or intervention?
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What role does the independent variable play in experimental research?
What role does the independent variable play in experimental research?
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During which stage of an experiment is data collected prior to the intervention?
During which stage of an experiment is data collected prior to the intervention?
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What is a defining characteristic of a true experimental design?
What is a defining characteristic of a true experimental design?
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What is the primary goal of research in the experimental design field?
What is the primary goal of research in the experimental design field?
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What distinguishes a single-subject design from other experimental designs?
What distinguishes a single-subject design from other experimental designs?
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What type of analysis can be performed on the results of experimental research?
What type of analysis can be performed on the results of experimental research?
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What is the independent variable in a scientific inquiry?
What is the independent variable in a scientific inquiry?
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Which characteristic of quantitative research ensures that results can be applied to a larger population?
Which characteristic of quantitative research ensures that results can be applied to a larger population?
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What is a potential weakness of quantitative research due to sample size requirements?
What is a potential weakness of quantitative research due to sample size requirements?
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Why is objectivity considered a characteristic of quantitative research?
Why is objectivity considered a characteristic of quantitative research?
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Which of the following best describes the correlation of variables in quantitative research?
Which of the following best describes the correlation of variables in quantitative research?
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What is the role of the independent variable in a scientific inquiry?
What is the role of the independent variable in a scientific inquiry?
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Which characteristic of quantitative research describes its ability to be repeated by other researchers?
Which characteristic of quantitative research describes its ability to be repeated by other researchers?
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What is a major weakness of quantitative research?
What is a major weakness of quantitative research?
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What does generalizability refer to in the context of quantitative research?
What does generalizability refer to in the context of quantitative research?
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Why is objectivity an important characteristic of quantitative research?
Why is objectivity an important characteristic of quantitative research?
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What is the primary characteristic of descriptive research?
What is the primary characteristic of descriptive research?
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Which type of research design can identify relationships without establishing cause-effect?
Which type of research design can identify relationships without establishing cause-effect?
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In experimental research, what is the role of the control group?
In experimental research, what is the role of the control group?
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What distinguishes true experimental research from quasi-experimental research?
What distinguishes true experimental research from quasi-experimental research?
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What is the independent variable in an experimental study?
What is the independent variable in an experimental study?
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In which stage do researchers measure the effects of the treatment after an intervention?
In which stage do researchers measure the effects of the treatment after an intervention?
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What does the term 'single-subject design' refer to in experimental research?
What does the term 'single-subject design' refer to in experimental research?
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Which type of analysis is appropriate for interpreting the results of experimental research?
Which type of analysis is appropriate for interpreting the results of experimental research?
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What is a fundamental goal of experimental research?
What is a fundamental goal of experimental research?
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Which type of research design uses both experimental and control groups but does not employ random assignment?
Which type of research design uses both experimental and control groups but does not employ random assignment?
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Study Notes
Quantitative Research
- Focuses on numerical data to describe phenomena and infer relationships
- Employs variables (factors) to understand relationships
- Variables are traits numerically describing objects, phenomena, or groups
- Common in scientific inquiry for testing hypotheses
- Two main types of variables:
- Independent variable: manipulated factor
- Dependent variable: measured factor affected by the independent variable
- Variables are also called factors, representing relationships between different factors
Characteristics of Quantitative Research
- Controllability: Researchers aim to control all variables impacting a relationship or phenomenon.
- Generalizability: Results are representative of a larger population using larger sample sizes.
- Objectivity: Data are measurable using structured instruments.
- Replicability: Other researchers can reproduce the study and obtain similar outcomes.
Strengths of Quantitative Research
- Statistical analyses aid data interpretation
- Can undertake large-scale research to represent populations
- Data presentation in graphs and tables simplifies understanding
Weaknesses of Quantitative Research
- Large sample sizes require significant time and resources
- Statistical analysis often demands expert knowledge
- Oversimplification of observations to numerical values
Types of Quantitative Research
-
Experimental Research: Investigates cause-and-effect relationships.
- Uses both experimental and control groups, with random assignment of participants.
- Independent variable manipulated to observe dependent variable changes.
- Intervention (treatment) in the experimental group
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Components of Experimental Research:
- Respondents (Groups): Experimental group receives treatment (intervention) and control group does not.
- Variables: Independent variable is the treatment, dependent is the outcome.
-
Strategies of Experimental Procedure:
- Intervention stage: variables interaction occurs
- Pretest: before intervention
- Posttest: after intervention
- Instrumentation and Materials: Tools to measure observations
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Research Designs:
- Pre-experimental: single experimental group
- True experiment: random assignment in experimental and controlled group
- Quasi-experiment: groups not randomly assigned. Random sampling not possible due to inherent or ethical limitations.
- Single-subject design: research participant only.
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Data Analysis and Interpretation:
- Descriptive or inferential methods (appropriate statistical tests).
- Aim is to establish cause-and-effect, not correlation.
- Types of research:
- Descriptive Research: Describes variables or phenomena in nature.
- Correlational Research: Investigates relationships between two variables.
- Quasi-experimental Research: Similar to experiments, but cannot control all variables. Random sampling not possible due to inherent or ethical reasons.
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Description
Explore the essential concepts of quantitative research, including its focus on numerical data and the role of variables in understanding relationships. Learn about the characteristics, strengths, and the two main types of variables—independent and dependent. This quiz will challenge your knowledge of quantitative methods and their applications in scientific inquiry.
