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Introduction to qualitative research methods
India FETP
Competency to be gained from this lecture
Identify the need for qualitative data when they are needed
Outline
• Qualitative research in public health• Differences between qualitative and
quantitative research• Key elements of qualitative research
The perception of beingcured from leprosy
• From the leprosy specialistTreatment completed Infection eradicated
• What does the patient think? “My patch is still here!” “I am still disabled!”
The place of qualitative research
The essence of qualitative research
• Inquiry process of understanding• Based upon distinct methodological
traditions of inquiry that explore a social or human problem
The place of qualitative research
The qualitative researcher
• Builds a complex, holistic picture• Analyzes words• Reports detailed views of informants• Conducts the study in a natural setting
The place of qualitative research
Why use qualitative methods?
• Bridge the gap between: The public health professionals The population that is supposed to benefit
from their work• Who are these people we are working for?
• Get the perspective of the local people The first information can be misinterpreted More information is needed for it to become
intelligible
The place of qualitative research
When to use qualitative methods?
• Need to explore and explain behaviours Explain rather than describing
• Subject matter is unfamiliar or insufficiently researched Mapping issues
• Suitable vocabulary is not available to communicate with respondents
The place of qualitative research
What qualitative methods can bring?
• Identify health determinants Underlying behaviours Attitudes Perceptions
• Explain social and programmatic impediment to: Informed choices Use of services
• Shed light on the success of intervention• Facilitate understanding of policy, social and
legal context in which decisions are made
The place of qualitative research
Advantages of qualitative methods
• Flexible• Encourage discoveries• Stimulate more investigation of the
unexpected
The place of qualitative research
Qualitative methods do not replace quantitative research
• Address different questions• Qualitative methods may be in
important input to quantitative research
• Parallel source of distinct, rich and pertinent information
Qualitative versus quantitative
A source of added value
Qualitative research
Quantitative research
Include in a single design
Qualitative versus quantitative
Possible sequence in qualitative and quantitative research
1. Qualitative research methods• Sort out / identify issues or factors
2. Quantitative research methods• Measure the frequency of key issues /
factors
Qualitative versus quantitative
Traditional questions in qualitative methods
• Examples: Why do people behave the way they do? Why are things the way they are?
• The “how many” of the epidemiologist is replaced by “why”
Qualitative versus quantitative
Deductive versus inductive processes
• Deductive process in qualitative studies(e.g., Einstein) Begins with theory Examines hypothetical relationships within it
• Inductive process in quantitative studies(e.g., Newton) Begins with observations Open questions towards more general
conclusionsQualitative versus quantitative
Criteria to judge the quality of findings in quantitative and
qualitative researchQuantitative studies
• Accuracy• Reliability• Freedom from bias
Qualitative studies• Neutrality• Uniformity• Objectivity• Replicability
Qualitative versus quantitative
Emphasis of quantitative and qualitative studies
Quantitative studies• Consistent
operational definitions
• Precisely worded questions
• Statistical analysis
The formulation of questions in measurable terms limits the scope
Qualitative studies• Objectivity• Expression of
findings: Measurable outcomes Relationship
Qualitative versus quantitative
Purpose of qualitative research
• Asks why, how and under what circumstances events occur
• Seeks depth of understanding• Views social phenomena holistically• Explores and discovers• Provides insight into the meanings of
decisions and actions
Principles of qualitative research
Methodology used in qualitative research
• Interpretative and other open-ended methods
• Iterative rather than fixed• Emergent rather than pre-structured
Principles of qualitative research
Respondents and investigator
• Respondents Respondents are not subjects Active participants
• Investigator Instrument in the research process
Principles of qualitative research
Creating a partnership in qualitative research requires a high level of
skills• Partnership
Participant• Contribute the information
Researcher • Learner• Co-interpreter• Guides the process towards knowledge
• Ethical obligations Relationship based upon trust and mutual
understanding of a common goal
Principles of qualitative research
Methods versus technique
• Method A systematic approach to data collection Includes tools and techniques to gather data
• Basic units• Building blocks of information
• Technique The art of asking, listening and interpreting
Principles of qualitative research
Emic versus Etic perspectives *
Emic Etic
Methods •In depth interview •Observation
Aims •How do respondents define and label things
•Describe and explain patterns of behaviours
Explanations of behaviours
•People’s idea systems
•Impersonal factors•Material conditions
Cross cultural generalizations
•Require conversion in abstract inter-cultural categories
•Application of the same observation method to different cultures
* Neologisms coming from “phonetic” and “phonemic”
Macro versus micro
• Differentiate Macro
• The country, the world
Micro• The village
• Anthropologists have a tendency to focus on the micro
• Many interactions today between the micro and the macro
Principles of qualitative research
Non-reactive and interactive techniques
• Non-reactive (Unobtrusive) The observer’s intent is to be unnoticed
• Interactive (Participant) Observation of social processes Living with the community a year
• Allows seasons and events to come back
Principles of qualitative research
The notion of domains
• Set of items or things that are all of the same type or category
• Example Health Religion Intimacy
Principles of qualitative research
Sorting observations and experiences as domains: Free listing
and pile sorting• Free listing
Participants are asked to make lists of all instances of the same phenomenon
Transfer to cards
• Pile sorting Sorting of the cards by piles according to
own criteria and labels
Principles of qualitative research
The relevance of domain
• The public health specialist may place a disease (e.g., diarrhea) in the domain of science and / or germ theory
• The respondent may place the disease in a completely different domain Tradition Religion Folk beliefs
Principles of qualitative research
Selected types of qualitative studies
• Life stories• Observations• Focus groups• In depth interviews
Principles of qualitative research
Take home messages
• Qualitative research map out issues and explain them
• Use the various comparative advantages of qualitative and quantitative methods
• Qualitative research explores, asks why and seeks depth in understand