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What is Research Design?
What is Research Design?
The best strategy to address research problem effectively & efficiently.
Blueprint for data measurement, collection, & analysis.
A set of procedures to collect & analyze measures of the variables specified in the research problem.
Overall strategy to integrate different components of study in a coherent (clear, consistent) & logical way, thereby, ensuring to address research problem effectively.
Functions of Research Design
Functions of Research Design
Blueprint
Blueprint
Achieve ROs, answer RQs, solve problem
Outline
Outline
A procedural outline for every research activity
Guide
Guide
A guide for selecting sources & types of information
Framework
Framework
A framework to specify relationships among variables
Two Streams of Quantitative Research
Two Streams of Quantitative Research
Non-experimental Design
Non-experimental Design
Looking at the relationships between variables.
Types: Descriptive, predictive, explanatory
Experimental Design
Experimental Design
Manipulating treatment to show causation.
Types: True experimental, Quasi experimental, pre-experimental
Non-experimental Design
Non-experimental Design
What is the primary objective of the research?
Descriptive
Descriptive
Describe attributes, behaviors, or phenomena.
Predictive
Predictive
Use relationship between attributes or variables to make prediction.
Explanatory
Explanatory
Test theories about how & why attributes/variables are related.
Types of Data
Types of Data
Data is defined as facts or figures pertinent to the problem
Survey
Survey
A method of investigation by using a list of questions to collect primary data from selected respondents about how they think & act.
Types of Survey
Types of Survey
Structured Survey
Use formal lists of questions to ask respondents in the same way.
Unstructured Survey
Let the interviewer probes respondents & guide the interview according to their answers.
Advantageous of Survey
Advantageous of Survey
High representativeness
Able to collect large amount of data with low costs
Convenient data gathering
Good statistical significance
Little or no observer subjectivity
Precise results
Disadvantageous of Survey
Disadvantageous of Survey
Less flexible, method of data collections cannot be changed throughout the process of data gathering.
Response rate is often very low.
Not ideal for controversial issues
Researcher has no control over who answers.
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