Podcast
Questions and Answers
What is a key characteristic of variables in research?
What is a key characteristic of variables in research?
- They cannot vary.
- They have fixed values.
- They are only used in qualitative research.
- They change and can take on different values. (correct)
Which of the following is NOT a strength of quantitative research?
Which of the following is NOT a strength of quantitative research?
- Allows for statistical analysis.
- Explores subjective experiences in-depth. (correct)
- Provides objective results.
- Facilitates comparisons across groups.
How can variables be classified according to scales of measure?
How can variables be classified according to scales of measure?
- Based on their physical properties.
- Only as nominal or ordinal.
- As nominal, ordinal, ratio, and interval. (correct)
- Primarily as qualitative and quantitative.
What type of variable is 'height' considered?
What type of variable is 'height' considered?
In the context of research, what does 'absolute zero' signify?
In the context of research, what does 'absolute zero' signify?
Which of the following is an example of an ordinal variable?
Which of the following is an example of an ordinal variable?
Which of the following statements about quantitative research is true?
Which of the following statements about quantitative research is true?
Which variable can be classified as nominal?
Which variable can be classified as nominal?
What does correlational research aim to determine?
What does correlational research aim to determine?
Which of the following is a characteristic of explanatory research design?
Which of the following is a characteristic of explanatory research design?
What is the role of the independent variable in an experimental research design?
What is the role of the independent variable in an experimental research design?
Which research question represents a correlational study?
Which research question represents a correlational study?
In the context of quantitative research, what does the term 'co-vary' mean?
In the context of quantitative research, what does the term 'co-vary' mean?
Which question would NOT typically be examined in descriptive research?
Which question would NOT typically be examined in descriptive research?
What does experimental research primarily test?
What does experimental research primarily test?
Which of the following would be considered a dependent variable?
Which of the following would be considered a dependent variable?
What is the main purpose of descriptive research designs?
What is the main purpose of descriptive research designs?
When should a cross-sectional survey be used?
When should a cross-sectional survey be used?
What distinguishes longitudinal survey designs from cross-sectional designs?
What distinguishes longitudinal survey designs from cross-sectional designs?
What type of research method involves an in-depth study of an individual or small group?
What type of research method involves an in-depth study of an individual or small group?
What type of survey is used specifically to describe trends?
What type of survey is used specifically to describe trends?
In what situation would manipulating conditions and studying effects typically occur?
In what situation would manipulating conditions and studying effects typically occur?
Which of the following is NOT a typical application of survey research designs?
Which of the following is NOT a typical application of survey research designs?
What is the key focus of observational methods in descriptive research?
What is the key focus of observational methods in descriptive research?
What characterizes true experimental research designs?
What characterizes true experimental research designs?
What is a key feature of quasi-experimental designs?
What is a key feature of quasi-experimental designs?
Which of the following research questions could be investigated using experimental research?
Which of the following research questions could be investigated using experimental research?
In the context of research design, what is 'randomization'?
In the context of research design, what is 'randomization'?
What research question best aligns with the experimental design focused on treatment effects?
What research question best aligns with the experimental design focused on treatment effects?
What does the notation 'EG: R O1 x O2' represent in experimental research design?
What does the notation 'EG: R O1 x O2' represent in experimental research design?
Which of the following is NOT a characteristic of experimental research?
Which of the following is NOT a characteristic of experimental research?
How does 'post-test' apply in an experimental research design?
How does 'post-test' apply in an experimental research design?
Study Notes
Differences Between Quantitative and Qualitative Research
- Quantitative research emphasizes numerical data and statistical analysis, while qualitative research focuses on understanding phenomena through rich narrative and contextual insights.
Strengths and Weaknesses of Quantitative Research
- Strengths:
- Allows for large sample sizes, increasing the generalizability of findings.
- Provides precise and objective measures through quantifiable data.
- Enables statistical testing to identify relationships and trends.
- Weaknesses:
- May oversimplify complex situations by relying solely on numbers.
- Limited in capturing the depth of human experiences and perceptions.
Understanding Variables
- A variable is any characteristic or attribute that can take on different values.
- Types of variables include:
- Independent variables: cause changes in other variables.
- Dependent variables: affected by independent variables.
Classifying Variables
- Variables can be classified according to the scales of measurement:
- Nominal: Categories with no inherent order (e.g., gender, cellphone brand).
- Ordinal: Categories with a meaningful order but unequal intervals (e.g., class rank).
- Interval: Numeric scales with equal intervals but no true zero point (e.g., temperature).
- Ratio: Numeric scales with equal intervals and a true zero (e.g., height, test scores).
Quantitative Research Designs
-
Descriptive Research:
- Aims to describe characteristics and facts of a population.
- Methods include observational studies, surveys, and case studies.
-
Correlational Research:
- Examines relationships between two or more variables.
- Helps in understanding co-variation but does not imply causation.
-
Experimental Research:
- Tests hypotheses by manipulating independent variables to observe effects on dependent variables.
- Distinction between true experiments (random assignment) and quasi-experiments (non-random assignment).
Types of Surveys
- Cross-sectional Surveys: Data collected at a single point in time to assess current opinions or behaviors.
- Longitudinal Surveys: Gather data over time to study trends and changes in specific groups.
Examples of Research Questions
- Descriptive: What are the sleeping habits of SHS students?
- Correlational: Does wearing a school uniform affect students’ class participation?
- Experimental: Does using audio-visual aids in class enhance students' memory retention?
Learning Goals
- Develop the ability to describe characteristics, strengths, and weaknesses of quantitative research.
- Differentiate among kinds of variables based on scales of measure.
- Contrast various types of quantitative research designs.
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Description
This quiz explores key concepts in Practical Research 2, focusing on the nature of inquiry, quantitative research designs, and understanding variables. You'll learn about the differences between quantitative and qualitative research, as well as the strengths and weaknesses of quantitative approaches. Dive into the classification of variables to enhance your research knowledge.
