* CS8607 Research Methods Lecture 1
Research
What is research?
Collect evidence, verify who collected the evidence and that they have valid methods and expertise in the area. Evidence-based case should be refutable or falsifiable. Then an hypothesis is formed.
Research: Is the collecting and analyzing of various kinds of data and information to gain more knowledge and have a better understanding about a topic. These results should be clear and convincing and have the ability to be repeated.
Four Key Elements: Systematic Contributing of Knowledge
1. Knowledge
- Higher level of understanding than just data
- Connected to other concepts
2. Contribution
- Extend our individual knowledge and eventually share new ideas, theories and results
3. Originality
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4. Systematic
Research Process:
1. Identify the problem
- Is it researchable? Not all problems are. Where do problems come from? Known Flaws, during the design process you might run into some problems
2. Reviewing Literature
-what have other people done already that forms your opinion. Use literature to help solve your problem
-explore results and methods
-focuses investigation
-limit wasting your time but gathering information that someone else already took the time to figure out
- gives you tools for analyzing the data
-check for Validity, Synthesis and Relevance of the literature before using it
3. Setting Research Questions, Objectives or Hypotheses
- Questions: need to be clear, specific, Synthesizes evidence, testable and repeatable
- Null Hypothesis (H0): no difference and look for the data that proves there is a difference
- Testable Hypothesis (H1):
4. Choosing the Study Design
- Quantitative, Qualitative or mixed
- Quantitative Research: correlational and survey (or descriptive)
- count things to describe the 11:00am
-Quantitative: Hypotheses, numerical data, consensus, norms, generalizability, values objectivity
- Qualitative: Research questions, words as data, local meaning, patterns, divergence & difference, and values subjectivity
- Quantitative:
5. Deciding on the sample design
-Sampling is a subset of the users (10% of the 100%)
- can be more narrow 10% of the left handed male UK based users - If that helps address your research question
-Probabilistic: examples- Random sampling, Stratified sampling and cluster sampling
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6.
7.
Questions:
Do you weight different inputs and feedback from users?
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