This document discusses three common approaches to evaluation: qualitative, quantitative, and mixed methods. The qualitative approach uses open-ended questions to gather contextual information but is time-consuming. The quantitative approach efficiently collects numerical data but does not provide explanations. The mixed methods approach balances efficient data collection with contextual data by incorporating both qualitative and quantitative elements, though it is more complex and costly. The document recommends selecting the approach best aligned with the evaluation's goals and objectives.

1. Selecting an Evaluation: Qualitative,
Quantitative, and
Mixed Methods Approaches
Presented By:
Md. Mostafijur Rahman
Supervised By:
Asif Imran
Lecturer, IIT, DU

2. Research Question
 How can be done evaluation of a research?
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3. Common evaluation design
approaches
 Qualitative
 Quantitative
 Mixed Method
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4. Qualitative Approach
 non-numerical information
o open-ended survey question, dialogue from a focus
group, Brainstormed ideas etc.
 Advantages
o contextual information
o respondents are free to answer any way they would
like
 Disadvantages
o time consuming
o more expensive
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5. Quantitative Approach
 count or quantify all collected data
o annual income, height or weight, ‘hits’ on a website,
correct response in a driving test etc.
 Advantages
o extremely efficient method
o less expensive
o less monitoring needed
 Disadvantages
o does not include an explanation of ‘why’
o respondents are limited to a set of response options
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6. Mixed Method Approach
 incorporates both qualitative and quantitative
elements in such a way that the qualitative and
quantitative information complements each other.
 Advantages
o balances efficient data collection and analysis with data
that provides context
o costs are mitigated
o quickly and efficiently captures potentially large amounts
of data
 Disadvantages
o challenge of methods complement
o duplicative data collection methods double the cost
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7. Which Approach to Use?
o Consider the alignment of approach with the
goals and objectives of the evaluation.
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8. References
[1] Creswell, J. W. (2013). Qualitative, quantitative, and mixed
methods approaches (4th ed.). Thousand Oaks, CA: Sage.
[2] Maxwell, J. A. (2012). Qualitative research design: An
interactive approach (3rd ed.). Thousand Oaks, CA: Sage.
[3] Smith, R. A., & Davis, S. F. (2012). The psychologist as
detective: An introduction to conducting research in psychology
(6th ed.). London: Pearson.
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9. Any Question?
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10. Thank You
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