E N D
1. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Mixed-Methods Research Chapter 23
2. 2012 The McGraw-Hill Companies, Inc.
All rights reserved.
3. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. What is Mixed-Methods Research? Uses both quantitative and qualitative methods in a single study
Some specify it further by insisting that the qualitative methods develop a holistic picture of the phenomenon being studied
4. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Advantages and Disadvantages of Mixed-Methods Research Advantages
Helps clarify and explain relationships found to exist between variables
Enables in-depth exploration of relationships between variables
Can help confirm or cross-validate relationships discovered between variables
Disadvantages
Expensive and time-consuming
Requires expertise in both quantitative and qualitative methods
5. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. A (Very) Brief History First suggested in the 1950s in the work of Campbell and Fiske
Denzin (1978) and Jick (1979) used the term triangulation to refer to using multiple methods and/or types of data to study the same research question.
Many researchers in the 1970s and 80s were purists who held that quantitative and qualitative paradigms could not be combined.
Many now are pragmatists who believe that researchers should use whatever works, including mixed-methods approaches.
6. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Steps in Conducting a Mixed-Methods Study Develop a clear rationale for doing mixed-methods study
Develop research question for both qualitative and quantitative methods
Decide if mixed-methods study is feasible
Determine the most appropriate mixed-methods design
Collect and analyze data
Write up results in appropriate manner
7. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Types of Mixed-Methods Design Exploratory Design
Results of qualitative research used to inform second, quantitative phase
Explanatory Design
Quantitative research followed up by qualitative phase to flesh out quantitative findings
Triangulation Design
Both quantitative and qualitative methods used to investigate same phenomenon to determine if the two converge on a single understanding of the research problem in question
8. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Exploratory Mixed-Methods Designs
9. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Explanatory Mixed-Methods Designs
QUAN ? qual
(Data and Results) Follow-up (Data and Results)
10. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Triangulation Mixed-Methods Design
QUAN + QUAL
(Data and Results) (Data and Results)
? ?
Interpretation Triangulation mixed methods design (also called concurrent or parallel MM designs)
Simultaneously collect both QUAN and QUAL data, merge the data, and use the results to understand a research problem.
Basic rationale for this design one data-collection form supplies strengths to offset the weaknesses of the other form. E.g., QUAN scores on an instrument from many individuals offsets the weakness of getting QUAL documents from a few people.
OR,
QUAL, in-depth observations of a few people provides strength to QUAN data that doesnt provide detailed info. about the context (e.g., setting) in which individuals provide info.
How does it work
Researcher gathers both QUAN and QUAL data, analyzes both datasets separately, compares results from both datasets, then makes an interpretation as to whether the results support or contradict each other.
1. The MM researcher values both QUAN and QUAL data, and sees them as approx. equal sources of info. in the study, e.g., interview data are as imp. As scores gathered on an instrument
2. MM researcher also collects both QUAN and QUAL data concurrently or simultaneously during the study. E.g., QUAL data about how cancer patients are taught self-care practices at home are reviewed at the same time the researcher collects QUAN observations on patient behavior using a checklist.
3. MM researcher compares results from QUAN and QUAL analyses to determine if the teo databases yield similar or dissimilar results. E.g, QUAL themes identified during interviews are quantified and given a score as to their frequency. These scores are then compared w/ scores from instruments measuring variables that address the same ideas as the themes. OR, MMR may transform QUAL data into QUAN numbers (e.g., counts how many times participants talk about codes) and then compare them with QUAN results from the QUAN database. FOR example, does the emphasis on safety in schools as determined by a count of the number of times parents talk about the code SAFETY reinforce the parents responses on a survey indicating the imp. of safety in schools? Triangulation mixed methods design (also called concurrent or parallel MM designs)
Simultaneously collect both QUAN and QUAL data, merge the data, and use the results to understand a research problem.
Basic rationale for this design one data-collection form supplies strengths to offset the weaknesses of the other form. E.g., QUAN scores on an instrument from many individuals offsets the weakness of getting QUAL documents from a few people.
OR,
QUAL, in-depth observations of a few people provides strength to QUAN data that doesnt provide detailed info. about the context (e.g., setting) in which individuals provide info.
How does it work
Researcher gathers both QUAN and QUAL data, analyzes both datasets separately, compares results from both datasets, then makes an interpretation as to whether the results support or contradict each other.
1. The MM researcher values both QUAN and QUAL data, and sees them as approx. equal sources of info. in the study, e.g., interview data are as imp. As scores gathered on an instrument
2. MM researcher also collects both QUAN and QUAL data concurrently or simultaneously during the study. E.g., QUAL data about how cancer patients are taught self-care practices at home are reviewed at the same time the researcher collects QUAN observations on patient behavior using a checklist.
3. MM researcher compares results from QUAN and QUAL analyses to determine if the teo databases yield similar or dissimilar results. E.g, QUAL themes identified during interviews are quantified and given a score as to their frequency. These scores are then compared w/ scores from instruments measuring variables that address the same ideas as the themes. OR, MMR may transform QUAL data into QUAN numbers (e.g., counts how many times participants talk about codes) and then compare them with QUAN results from the QUAN database. FOR example, does the emphasis on safety in schools as determined by a count of the number of times parents talk about the code SAFETY reinforce the parents responses on a survey indicating the imp. of safety in schools?
11. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Other Mixed-Methods Design Issues Advocacy Lenses
Researchers worldview implies that the purpose of research is to advocate for improved treatment of research participants in world outside research
Sampling
Qualitative researchers typically use purposive sampling
Quantitative researchers typically prefer random sampling
Mixed-Model Studies
Combine qualitative and quantitative approaches within several different phases of the research process
12. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Evaluating a Mixed-Methods Study Ask if both quantitative and qualitative methods played a role in conclusions reached
Ask if study contains threats to internal validity
Ask about generalizability or transferability
13. 2012 The McGraw-Hill Companies, Inc.
All rights reserved. Mixed-Methods Research Chapter 23