Qualitative research is a
generic term for investigative methodologies described as ethnographic,
naturalistic, anthropological, field, or participant observer research. It
emphasizes the importance of looking at variables in the natural setting in
which they are found. Interaction between variables is important. Detailed data
is gathered through open ended questions that provide direct quotations. The
interviewer is an integral part of the investigation (Jacob, 1988). This
differs from quantitative research which attempts to gather data by objective
methods to provide information about relations, comparisons, and predictions
and attempts to remove the investigator from the investigation (Smith, 1983).
Characteristics
Purpose:
Understanding - Seeks to understand people’s interpretations.
Reality:
Dynamic - Reality changes with changes in people’s perceptions.
Viewpoint:
Insider - Reality is what people perceive it to be.
Values:
Value bound - Values will have an impact and should be understood and taken
into account when conducting and reporting research.
Focus:
Holistic - A total or complete picture is sought.
Orientation:
Discovery - Theories and hypotheses are evolved from data as collected.
Data:
Subjective - Data are perceptions of the people in the environment.
Instrumentation:
Human - The human person is the primary collection instrument.
Conditions:
Naturalistic - Investigations are conducted under natural conditions.
Results:
Valid - The focus is on design and procedures to gain "real,"
"rich," and "deep" data.
Advantages
|
Produces more in-depth, comprehensive
information.
|
|
Uses subjective information and
participant observation to describe the context, or natural setting, of the
variables under consideration, as well as the interactions of the different
variables in the context. It seeks a wide understanding of the entire
situation.
|
Disadvantages
|
The very subjectivity of the inquiry
leads to difficulties in establishing the reliability and validity of the
approaches and information.
|
|
It is very difficult to prevent or
detect researcher induced bias.
|
|
Its scope is limited due to the
in-depth, comprehensive data gathering approaches required.
|
Holistic Description
When conducting qualitative research,
the investigator seeks to gain a total or complete picture. According to
Stainback and Stainback (1988), a holistic description of events, procedures,
and philosophies occurring in natural settings is often needed to make accurate
situational decisions. This differs from quantitative research in which
selected, pre-defined variables are studied.
Corroboration
The purpose of corroboration is not
to confirm whether people’s perceptions are accurate or true reflections of a
situation but rather to ensure that the research findings accurately reflect
people’s perceptions, whatever they may be. The purpose of corroboration
is to help researchers increase their understanding of the probability that
their findings will be seen as credible or worthy of consideration by others
(Stainback & Stainback, 1988).
Triangulation
One process involved in corroboration
is triangulation. Denzin (1978) has identified several types of
triangulation. One type involves the convergence of multiple data sources.
Another type is methodological triangulation, which involves the convergence of
data from multiple data collection sources. A third triangulation procedure is
investigator triangulation, in which multiple researchers are involved in
an investigation. Related to investigator triangulation is researcher-participant
corroboration, which has also been referred to as cross-examination.
Other procedures can be used to improve
understanding and/or the credibility of a study. These include research or
inquiry audit, peer debriefing, and the seeking of negative cases in the field
that might disconfirm interpretations.
Participant
Observation
|
Systematically seeks out and
organizes data concerning what is being studied based on a social science
theory and methodology rather than focusing on achieving a situationally
defined goal.
|
|
Keeps detailed records of what
occurs, including those things characteristically taken for granted.
|
|
Periodically detaches self from the
situation to review records from the neutral position of a social scientist.
|
|
Constantly monitors observations and
records for evidence of personal bias or prejudice.
|
Five Types of
Participant Observation
|
External Participation
constitutes the lowest degree of involvement in observation. This type of
observation can be done by observing situations on television or videotape.
|
|
Passive Participation
means the researcher is present at the scene of action but does not interact
or participate. The researcher finds an observation post and assumes the role
of a bystander or spectator.
|
|
Balanced Participation
means that the researcher maintains a balance between being an insider and
being an outsider. The researcher observes and participates in some
activities, but does not participate fully in all activities.
|
|
Active Participation
means that the researcher generally does what others in the setting do. While
beginning with observation to learn the rules, as they are learned the
researcher becomes actively engaged in the activities of the setting.
|
|
Total Participation
means the researcher is a natural participant. This is the highest level of
involvement and usually comes about when the researcher studies something in
which he or she is already a natural participant.
|
Interviewing
|
The researcher should control his
reactions. The purpose of the interview is to find out what views people
hold; their views should be unbiased by evaluative responses on the
researcher’s part.
|
|
The researcher should choose an
interview environment and conditions in which the participants feel
comfortable, secure, and at ease enough to speak openly about their point of
view.
|
|
The researcher should avoid
presenting "yes" or "no" questions which tend to stifle
detail.
|
|
The researcher should be flexible in
his or her approach to the informants.
|
|
Group interviews can be useful,
particularly in initial interviews.
|
|
The researcher should consider to
what degree the interview questioning is "recursive." As applied to
interviewing, what has been said in an interview is used to determine or
define further questioning.
|
Case Study
Case studies are detailed
investigations of individuals, groups, institutions or other social units. The
researcher conducting a case study attempts to analyze the variables relevant
to the subject under study (Polit and Hungler, 1983). The principle difference
between case studies and other research studies is that the focus of attention
is the individual case and not the whole population of cases. Most studies
search for what is common and pervasive. However, in the case study, the focus
may not be on generalization but on understanding the particulars of that case
in its complexity. A case study focuses on a bounded system, usually under
natural conditions, so that the system can be understood in its own habitat
(Stake, 1988).
Maintaining The
Validity Of Qualitative Research
|
Be a listener.
The subject(s) of qualitative research should provide the majority of the
research input. It is the researcher’s task to properly interpret the
responses of the subject(s).
|
|
Record accurately.
All records should be maintained in the form of detailed notes or electronic
recordings. These records should also be developed during rather than after
the data gathering session.
|
|
Initiate writing early.
It is suggested that the researcher make a rough draft of the study before
ever going into the field to collect data. This allows a record to be made
when needed. The researcher is more prepared now to focus the data gathering
phase on that information that will meet the specific identified needs of the
project.
|
|
Include the primary data in the final
report. The inclusion of primary data in
the final report allows the reader to see exactly the basis upon which the
researcher’s conclusions were made. In short, it is better to include too
much detail than too little.
|
|
Include all data in the final report.
The researcher should not leave out pieces of information from the final
report because she/he cannot interpret that data. In these cases, the reader
should be allowed to develop his/her conclusions.
|
|
Be candid.
The researcher should not spend too much time attempting to keep her/his own
feelings and personal reactions out of the study. If there is relevance in
the researcher’s feelings to the matter at hand, these feelings should be
revealed.
|
|
Seek feedback.
The researcher should allow others to critique the research manuscript
following the developmental process. Professional colleagues and research
subjects should be included in this process to ensure that information is
reported accurately and completely.
|
|
Attempt to achieve balance.
The researcher should attempt to achieve a balance between perceived
importance and actual importance. Often, the information reveals a difference
in anticipated and real areas of study significance.
|
|
Write accurately. Incorrect
grammar, misspelled words, statement inconsistency, etc. jeopardize the
validity of an otherwise good study.
|
Wolcott, H.R. (1990). Qualitative
inquiry in education: The continuing debate.
Assessment of
Trustworthiness
Researchers need alternative models
appropriate to qualitative designs to ensure rigor without sacrificing the
relevance of qualitative research. Guba’s model describes four general criteria
for evaluation of research and then defines each from both a quantitative and
qualitative perspective.
Criterion
|
Qualitative
Approach
|
Quantitative
Approach
|
Truth value
|
Credibility
|
Internal Validity
|
Applicability
|
Transferability
|
External Validity
|
Consistency
|
Dependability
|
Reliability
|
Neutrality
|
Confirmability
|
Objectivity
|
Strategies With Which
to Establish Trustworthiness
Strategy
|
Criteria
|
Credibility
|
Prolonged and
varied field experience
|
|
Time sampling
|
|
Reflexivity (field
journal)
|
|
Triangulation
|
|
Member checking
|
|
Peer examination
|
|
Interview technique
|
|
Establishing
authority of researcher
|
|
Structural
coherence
|
|
Referential
adequacy
|
Transferability
|
Nominated sample
|
|
Comparison of
sample to demographic data
|
|
Time sample
|
|
Dense description
|
Dependability
|
Dependability audit
|
|
Dense description
of research methods
|
|
Stepwise
replication
|
|
Triangulation
|
|
Peer examination
|
|
Code-recode
procedure
|
Confirmability
|
Confirmability
audit
|
|
Triangulation
|
|
Reflexivity
|
Krefting, L. (1991). Rigor in
qualitative research: The assessment of trustworthiness. The American
Journal of Occupational Therapy, 45(3), 214-222.
Characteristics of
Qualitative and Quantitative Research
Point of
Comparisons
|
Qualitative
Research
|
Quantitative
Research
|
Focus of research
|
Quality (nature,
essence)
|
Quantity (how much,
how many)
|
Philosophical roots
|
Phenomenology,
symbolic interaction
|
Positivism, logical
empiricism
|
Associated phrases
|
Fieldwork,
ethnographic, naturalistic, grounded, subjective
|
Experimental,
empirical, statistical
|
Goal of
investigation
|
Understanding,
description, discovery, hypothesis generating
|
Prediction,
control, description, confirmation, hypothesis testing
|
Design
characteristics
|
Flexible, evolving,
emergent
|
Predetermined,
structured
|
Setting
|
Natural, familiar
|
Unfamiliar,
artificial
|
Sample
|
Small, non-random,
theoretical
|
Large, random,
representative
|
Data collection
|
Researcher as
primary instrument, interviews, observations
|
Inanimate
instruments (scales, tests, surveys, questionnaires, computers)
|
Mode of analysis
|
Inductive (by
researcher)
|
Deductive (by
statistical methods)
|
Findings
|
Comprehensive,
holistic, expansive
|
Precise, narrow,
reductionist
|
Merriam, S.B. (1988). Case study
research in education: A qualitative approach. San Francisco: Jossey-Bass,
p. 18.
SELF ASSESSMENT
1. Briefly define and describe
qualitative research.
2. List two advantages of qualitative
research.
3. List three disadvantages of
qualitative research.
4. Define holistic description.
5. Define corroboration.
6. Define triangulation.
7. List the five types of participant
observation.
8. Define case study.
9. List the methods of maintaining
validity of qualitative research.
10. List the four criteria for
evaluation of qualitative research.
11. List ways to establish
trustworthiness for each strategy in Guba’s model.
12. List twelve comparisons between
qualitative and quantitative research.
No comments:
Post a Comment