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Quant Vs Qual Research

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  • 1. Quantitative vs. Qualitative Research Methods
  • 2. Two Approaches to Research
    • Quantitative
      • Emphasizes numbers, measurements, control, and experimentation
      • This is the traditional scientific research
    • Qualitative
      • Emphasizes natural settings, observations, verbal narratives, and interpretations
      • Emerged from sociology
  • 3. Goals
    • Quantitative
      • Test hypothesis (theory)
      • Establish facts
      • Show relationships
      • Predict
      • Statistically describe
      • Outsider meaning
    • Qualitative
      • Build theory
      • Develop understanding
      • Describe multiple realities
      • Capture naturally occurring behavior
      • Insider meaning
  • 4. Design
    • Quantitative
      • Structured
      • Predetermined
      • Formal
      • Specific
    • Qualitative
      • Evolving (emerging)
      • Flexible
      • Informal
      • General
  • 5. Sample
    • Quantitative
      • Large
      • Representative
      • Random Selection
    • Qualitative
      • Small
      • Non-representative
      • Purposeful
  • 6. Data
    • Quantitative
      • Quantities
      • Counts
      • Measures
      • Instruments
      • Numbers
      • Statistics
    • Qualitative
      • Verbal descriptions
      • Field Notes
      • Observations
      • Documents
      • Photographs
      • People’s own words
      • Narrative
  • 7. Methods
    • Quantitative
      • Experiments
      • Quasi-experiments
      • Corr. /Surveys
      • Ex Post Facto
    • Qualitative
      • Case studies
      • Ethnographies
      • Verbal Protocol Analysis
  • 8. Mixed Methods
    • Involve different combination of quantitative and qualitative methods at the level of:
      • Data collection
      • Data analysis
      • Example: A combination of questionnaire and interview.
  • 9. History of Mixed Methods
    • Over the past 15 years, mixed methods have been used as a third approach in research methods.
    • Mostly introduced in the 1970s with the introduction of the concept of “triangulation:
      • Using different methods and data sources
  • 10. Typology of Mixed Methods
    • Notations:
      • ‘ QUAL’ or ‘qual’ stand for qualitative method
      • ‘ QUAN’ or ‘quan’ stand for quantitative method
      • Capital letters denote priority or increased weight
      • Lowercase letters denote lower priority or weight
      • A plus sign (+) represents a concurrent data collection
      • An arrow (  ) represents a sequential collection of data
  • 11. Nine possible combinations
    • QUAL + QUAN
    • QUAL + quan
    • QUAN + qual
    • QUAL  QUAN
    • QUAN  QUAL
    6. QUAL  quan 7. Qual  QUAN 8. QUAN  qual 9. quan  QUAL
  • 12. Which Approach is Best?
    • The problem you are studying determines which approach to take.
    • One is not better than the other.
  • 13. Which Would You Select?
    • Research problem: Error correction: Yes or no?
    • Get with a partner and quickly design a study to investigate this problem.
      • Decide whether to approach this problem quantitatively or qualitatively or mixed
      • Tell What you would do and Why
      • What are the advantages and disadvantages of your approach
  • 14.  

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