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Qualitative Research
Comparing Qualitative and
      Quantitative Methods

Before discussing the differences between qualitative
      and quantitative methodologies one must
       understand the foundational similarities.



                          ?
                          =
Foundational Similarities
All qualitative data can be measured and coded
 using quantitative methods.
Quantitative research can be generated from
 qualitative inquiries.
Example: One can code an open-ended
 interview with numbers that refer to data
 specific references, or such references could
 become the origin of a randomized experiment.
Foundational Differences

 The major difference between qualitative and
  quantitative research stems from the
  researcher’s underlying strategies.

 Quantitative research is viewed as confirmatory
  and deductive in nature.

 Qualitative research is considered to be
  exploratory and inductive.
Qualitative Research
Terminology
Methods
Strengths and weaknesses
Terminology
Grounded theory
Ethnography
Phenomenology
Field research
Grounded Theory
Grounded theory refers to an inductive process
 of generating theory from data.

This is considered ground-up or bottom-up
 processing.

Grounded theorists argue that theory generated
 from observations of the empirical world may
 be more valid and useful than theories
 generated from deductive inquiries.
Grounded Theory (con’t)
 Grounded theorists criticize deductive reasoning since it
  relies upon a priori assumptions about the world.

 However, grounded theory incorporates deductive reasoning
  when using constant comparisons.

 In doing this, researchers detect patterns in their observations
  and then create working hypotheses that directs the
  progression of the inquiry.
Ethnography
Ethnography emphasizes the observation of
 details of everyday life as they naturally unfold
 in the real world. This is sometimes called
 naturalistic research.

Ethnography is a method of describing a culture
 or society. This is primarily used in
 anthropological research.
Phenomenology
 Phenomenology is a school of thought that
  emphasizes a focus on people’s subjective
  experiences and interpretations of the world.

 Phenomenological theorists argue that
  objectivity is virtually impossible to ascertain,
  so to compensate, one must view all research
  from the perspective of the researcher.
Phenomenology (con’t)
 Phenomenologists attempt to understand those
  whom they observe from the subjects’
  perspective.

 This outlook is especially pertinent in social
  work and research where empathy and
  perspective become the keys to success.
Field Research

Field research is a general term that refers to a
 group of methodologies used by researchers in
 making qualitative inquiries.

The field researcher goes directly to the social
 phenomenon under study and observes it as
 completely as possible.
Field Research (con’t)

The natural environment is the priority of the
 field researcher. There are no implemented
 controls or experimental conditions to speak of.

Such methodologies are especially useful in
 observing social phenomena over time.
Methods

  Participant observation
  Direct observation
  Unstructured or intensive interviewing
  Case studies
Participant Observation
The researcher literally becomes part of the
 observation.

Example: One studying the homeless may decide to
 walk the streets of a given area in an attempt to gain
 perspective and possibly subjects for future study.
Direct Observation

Direct observation is where the researcher observes the
 actual behaviors of the subjects, instead of relying on
 what the subjects say about themselves or others say
 about them.

Example: The observation booth at the CECP in Martha
 Van may be used for direct observation of behavior
 where survey or other empirical methodologies may
 seem inappropriate.
Unstructured or Intensive
        Interviewing

This method allows the researcher to ask open-
 ended questions during an interview.

Details are more important here than a specific
 interview procedure.

Here lies the inductive framework through
 which theory can be generated.
Case Studies
 A particular case study may be the focus of any of the
  previously mentioned field strategies.

 The case study is important in qualitative research,
  especially in areas where exceptions are being studied.

 Example: A patient may have a rare form of cancer that
  has a set of symptoms and potential treatments that have
  never before been researched.
Strengths and Weaknesses
Objectivity
Reliability
Validity
Generalizability
Objectivity
It is given that objectivity is impossible in
  qualitative inquiry. Instead the researcher locates
  his/herself in the research.

Objectivity is replaced by subjective interpretation
  and mass detail for later analysis.
Reliability
Since procedure is de-emphasized in qualitative
 research, replication and other tests of
 reliability become more difficult.

However, measures may be taken to make
 research more reliable within the particular
 study (such as observer training, or more
 objective checklists, and so on).
Validity

 Qualitative researchers use greater detail to argue for
  the presence of construct validity.

 Weak on external validity.


 Content validity can be retained if the researcher
  implements some sort of criterion settings.

 Having a focused criterion adds to the study’s validity.
Generalizability
Results for the most part, do not extend much
 further than the original subject pool.

Sampling methods determine the extent of the
 study’s generalizability.

Quota and Purposive sampling strategies are
 used to broaden the generalizability.
Summing Up
Remember that there are always trade-offs in
 research.

Are you willing to trade detail for generalizability?


Will exploratory research enable you to generate
 new theories?

Can you ask such sensitive questions on a
 questionnaire?
Summing Up (con’t)

Will the results add any evidence toward any pre-
 existing theory or hypothesis?

Is FUNDING available for this research?


Do you really need to see numbers to support your
 theories or hypotheses?

Are there any ethical problems that could be
 minimized by choosing a particular strategy?

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Qualitative research

  • 2. Comparing Qualitative and Quantitative Methods Before discussing the differences between qualitative and quantitative methodologies one must understand the foundational similarities. ? =
  • 3. Foundational Similarities All qualitative data can be measured and coded using quantitative methods. Quantitative research can be generated from qualitative inquiries. Example: One can code an open-ended interview with numbers that refer to data specific references, or such references could become the origin of a randomized experiment.
  • 4. Foundational Differences The major difference between qualitative and quantitative research stems from the researcher’s underlying strategies. Quantitative research is viewed as confirmatory and deductive in nature. Qualitative research is considered to be exploratory and inductive.
  • 7. Grounded Theory Grounded theory refers to an inductive process of generating theory from data. This is considered ground-up or bottom-up processing. Grounded theorists argue that theory generated from observations of the empirical world may be more valid and useful than theories generated from deductive inquiries.
  • 8. Grounded Theory (con’t)  Grounded theorists criticize deductive reasoning since it relies upon a priori assumptions about the world.  However, grounded theory incorporates deductive reasoning when using constant comparisons.  In doing this, researchers detect patterns in their observations and then create working hypotheses that directs the progression of the inquiry.
  • 9. Ethnography Ethnography emphasizes the observation of details of everyday life as they naturally unfold in the real world. This is sometimes called naturalistic research. Ethnography is a method of describing a culture or society. This is primarily used in anthropological research.
  • 10. Phenomenology Phenomenology is a school of thought that emphasizes a focus on people’s subjective experiences and interpretations of the world. Phenomenological theorists argue that objectivity is virtually impossible to ascertain, so to compensate, one must view all research from the perspective of the researcher.
  • 11. Phenomenology (con’t) Phenomenologists attempt to understand those whom they observe from the subjects’ perspective. This outlook is especially pertinent in social work and research where empathy and perspective become the keys to success.
  • 12. Field Research Field research is a general term that refers to a group of methodologies used by researchers in making qualitative inquiries. The field researcher goes directly to the social phenomenon under study and observes it as completely as possible.
  • 13. Field Research (con’t) The natural environment is the priority of the field researcher. There are no implemented controls or experimental conditions to speak of. Such methodologies are especially useful in observing social phenomena over time.
  • 14. Methods Participant observation Direct observation Unstructured or intensive interviewing Case studies
  • 15. Participant Observation The researcher literally becomes part of the observation. Example: One studying the homeless may decide to walk the streets of a given area in an attempt to gain perspective and possibly subjects for future study.
  • 16. Direct Observation Direct observation is where the researcher observes the actual behaviors of the subjects, instead of relying on what the subjects say about themselves or others say about them. Example: The observation booth at the CECP in Martha Van may be used for direct observation of behavior where survey or other empirical methodologies may seem inappropriate.
  • 17. Unstructured or Intensive Interviewing This method allows the researcher to ask open- ended questions during an interview. Details are more important here than a specific interview procedure. Here lies the inductive framework through which theory can be generated.
  • 18. Case Studies  A particular case study may be the focus of any of the previously mentioned field strategies.  The case study is important in qualitative research, especially in areas where exceptions are being studied.  Example: A patient may have a rare form of cancer that has a set of symptoms and potential treatments that have never before been researched.
  • 20. Objectivity It is given that objectivity is impossible in qualitative inquiry. Instead the researcher locates his/herself in the research. Objectivity is replaced by subjective interpretation and mass detail for later analysis.
  • 21. Reliability Since procedure is de-emphasized in qualitative research, replication and other tests of reliability become more difficult. However, measures may be taken to make research more reliable within the particular study (such as observer training, or more objective checklists, and so on).
  • 22. Validity  Qualitative researchers use greater detail to argue for the presence of construct validity.  Weak on external validity.  Content validity can be retained if the researcher implements some sort of criterion settings.  Having a focused criterion adds to the study’s validity.
  • 23. Generalizability Results for the most part, do not extend much further than the original subject pool. Sampling methods determine the extent of the study’s generalizability. Quota and Purposive sampling strategies are used to broaden the generalizability.
  • 24. Summing Up Remember that there are always trade-offs in research. Are you willing to trade detail for generalizability? Will exploratory research enable you to generate new theories? Can you ask such sensitive questions on a questionnaire?
  • 25. Summing Up (con’t) Will the results add any evidence toward any pre- existing theory or hypothesis? Is FUNDING available for this research? Do you really need to see numbers to support your theories or hypotheses? Are there any ethical problems that could be minimized by choosing a particular strategy?