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Research: Data Collection methods, tools and techniques.pdf
1. Data Collection methods,
tools and techniques
Dr. Mahesh H. Koltame
Assistant Professor,
P.V.D.T. College of Education for Women, SNDT Women’s University, Mumbai
2. Content Layout
▪ Concept of Data collection
▪ Types of data
▪ Qualitative Data
▪ Quantitative Data
▪ Mixed
▪ Data Collection: Primary & Secondary
▪ Data Collection methods, tools, and techniques
▪ Surveys: Questionnaire, Polls, Forms etc.
▪ Interviews: Structured, Semi-structured, and Unstructured
▪ Observation: Uncontrolled & Controlled
▪ Focus Group Discussion (FGD):
5/22/2022 Dr. Mahesh H. Koltame CC-BY 2
3. CONCEPT OF DATA COLLECTION
Data collection is the process of
gathering and measuring information
on variables of interest, in an
established systematic fashion that
enables one to answer stated research
questions, test hypotheses, and
evaluate outcomes.
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5. Types of data
Qualitative Data
• Qualitative data are mostly non-numerical and usually descriptive or nominal in
nature.
• This means the data collected are in the form of words and sentences.
• Often (not always), such data captures feelings, emotions, or subjective
perceptions of something.
• Qualitative questions are open-ended.
• Qualitative methods include focus groups, group discussions and interviews.
• Qualitative data collection methods play an important role in impact evaluation
by providing information useful to understand the processes behind observed
results and assess changes in people’s perceptions of their well-being.
• Furthermore qualitative methods can be used to improve the quality of survey-
based quantitative evaluations by helping generate evaluation hypotheses;
strengthening the design of survey questionnaires and expanding or clarifying
quantitative evaluation findings.
This Photo by Unknown Author is licensed under CC BY
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6. Types of data
Features of Qualitative Data
• tend to be open-ended and have less structured protocols.
• rely more heavily on interactive interviews; respondents may
be interviewed several times to follow up on a particular
issue, clarify concepts or check the reliability of data;
• use triangulation to increase the credibility of their findings
(ie., researchers rely on multiple data collection methods to
check the authenticity of their results);.
• findings are not generalizable to any specific population,
rather each case study produces a single piece of evidence
that can be used to seek general patterns among different
studies of the same issue.
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7. Types of Data
Quantitative Data
• Quantitative data is numerical in nature and can be mathematically computed.
• Quantitative data measure uses different scales, which can be classified as
nominal scale, ordinal scale, interval scale and ratio scale.
• They use a systematic standardized approach and employ methods such as
surveys and ask questions.
• Quantitative approaches have the advantage that they are cheaper to
implement, are standardized so comparisons can be easily made and the size of
the effect can usually be measured.
• The Quantitative data collection methods rely on random sampling and
structured data collection instruments that fit diverse experiences into
predetermined response categories.
• They produce results that are easy to summarize, compare, and generaliz.
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8. Types of Data
Features of Quantitative Data
• Experiments/clinical trials.
• Observing and recording well-defined events (e.g., counting the number of
patients waiting in emergency at specified times of the day).
• Obtaining relevant data from management information systems.
• Administering surveys with closed-ended questions (e.g., face-to-face and
telephone interviews, questionnaires, etc).
• In quantitative research (survey research), interviews are more structured than
in Qualitative research.
• In a structured interview, the researcher asks a standard set of questions and
nothing more.
• Paper-pencil-questionnaires can be sent to a large number of people and saves
the researcher time and money.
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9. Types of Data
Mixed Methods
• Mixed methods approach as design, combining
both qualitative and quantitative research data,
techniques and methods within a single research
framework.
• Mixed methods encompass multifaceted
approaches that combine to capitalize on
strengths and reduce weaknesses that stem from
using a single research design.
• Using this approach to gather and evaluate data
may assist to increase the validity and reliability of
the research.
• Mixed methods are useful in highlighting complex
research problems.
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10. Data Collection: Primary & Secondary
Primary Data
▪ Data that has been collected from
first-hand-experience
▪ Primary data has not been
published yet and is more
reliable, authentic and objective.
▪ Primary data has not been
changed or altered by human
beings; therefore its validity is
greater than secondary data.
Secondary Data
▪ Data collected from a source that
has already been published in any
form is called as secondary
▪ The review of literature in any
research is based on secondary
data.
▪ It is collected by someone else for
some other purpose (but being
utilized by the investigator for
another purpose).
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11. Data Collection: Primary & Secondary
Sources of Primary Data
▪ Experiments
▪ Survey
▪ Questionnaire
▪ Interview
▪ Observations
▪ Focus group discussions (FGD)
▪ Field visits
▪ Case Study
Sources of Secondary Data
▪ Books
▪ Records
▪ Biographies
▪ Newspapers
▪ Published censuses or other statistical
data
▪ Data archives
▪ Internet articles
▪ Research articles by other researchers
(journals)
▪ Databases, etc.
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12. Observation
“Observation is not only one of the most
pervasive activities of daily life, but it is also a
primary tool of scientific inquiry’’
- Selltiz, Johoda, Dentsch and Cook
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13. Characteristics of Observation Technique
➢Full use of human senses.
➢Deliberate and micro-study.
➢ Direct study.
➢ To know about the mutual and cause-
effect relationship.
➢ Empirical study.
➢ Behavioral study of individual or
collective.
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14. Types of Observation
Types of
Observation
Uncontrolled
Participant
Non-
Participant
Quasi-
Participant
Controlled
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15. Tools & Instruments for Observation
✓ Pre-Observation Template
✓ Observation Sample Templates
✓ Checklist (criterion-based) Form
✓ Detailed observation plan
✓ Observation Schedule
✓ Sociometry
✓ Observation Diary
✓ Mechanical devices
✓ The Narrative Log
This Photo by Unknown Author is licensed under CC BY-NC
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16. Reliability issues in observation & remedies
Issues
▪ Limitations of senses
▪ Artificial behavior
▪ Lack of in-depth understanding
in interpretation
▪ Inadequacy of phenomenon
▪ Personal bias of the observer
Remedies
▪ Observation plan
▪ Observation Schedule
▪ Use of mechanical devices
▪ Maps
▪ Use of sociometric scales
▪ Formulation of Hypothesis
▪ Collective observation
▪ Trained observers
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17. INTERVIEWS METHOD
▪ Interviewing involves asking questions and getting answers from
participants in a study.
▪ G.W. Allport- “If we want to know how people feel, what they
experience, and what they remember, what their emotions and
motivations and like, and the reasons for acting as they do-why
do not ask them?” -
▪ Interviewing has a variety of forms including individual, face-to-
face interviews and face-to-face group interviewing.
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18. Characteristics of Interview
• Goal-driven
• Two or more person
• Face to face relations
• Question–answer
• Structured
• Controlled, and
• Data Collection
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19. Types of Interview
Structured
▪ Interviewer asks each respondent
the same series of questions
▪ The questions are created prior
to the interview.
▪ There is generally little room for
variation in responses.
▪ Questioning is standardized and
the ordering and phrasing of the
questions are kept consistent
from interview to interview.
▪ The interviewer plays a neutral
role
Semi-structured or
▪ The interviewer and
respondents engage in a formal
interview.
▪ The interviewer develops and
uses an ‘interview guide’. This is
a list of questions and topics
that need to be covered during
the conversation, usually in a
particular order.
▪ The interviewer follows the
guide, but is able to follow
topical trajectories in the
conversation that may stray
from the guide when s/he feels
this is appropriate.
Unstructured
▪ The interviewer and respondents
engage in a formal interview in that
they have a scheduled time to sit
and speak with each other and both
parties recognize this to be an
interview.
▪ The interviewer has a clear plan in
mind regarding the focus and goal of
the interview.
▪ There is not a structured interview
guide.
▪ Questions tend to be open-ended.
▪ Ethnographic, in depth interviews
are unstructured
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20. QUESTIONNAIRE METHOD
▪ A questionnaire is a research instrument consisting of a
series of questions and other prompts for the purpose of
gathering information from respondents.
▪ Although they are often designed for statistical analysis of
the responses, this is not always the case.
▪ The questionnaire was invented by Sir Francis Galton (1822 -
1911).
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21. Characteristics of Questionnaire
▪ Sequence of questions
▪ Uniformity
▪ Exploratory
▪ Easy to understand
▪ It takes less time to collect information from a large group of
respondents.
▪ The questionnaire is an inexpensive method
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23. Basic Rules for Questionnaire Item Construction
✓ Use statements which are interpreted in the same way by members of different subpopulations of
the population of interest.
✓ Use statements where persons that have different opinions or traits will give different answers.
✓ Think of having an ‘open’ answer category after a list of possible answers.
✓ Use only one aspect of the construct you are interested in per item.
✓ Use positive statements and avoid negatives or double negatives.
✓ Do not make assumptions about the respondent.
✓ Use clear and comprehensible wording, easily understandable for all educational levels.
✓ Use correct spelling, grammar and punctuation.
✓ Avoid items that contain more than one question per item (e.g. Do you like strawberries and
potatoes?).
✓ Question should not be biased or even leading the participant towards an answer.
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24. FOCUS GROUP DISCUSSION (FGD)
• Focus group discussions are generally used to collect data on a
specific topic.
• Focus group methods emerged in the 1940s with the work of
Merton and Fiske who used focus groups to conduct consumer
satisfaction.
• A focus group discussion (FGD) is an in-depth field method
that brings together a small homogeneous group (usually six
to twelve persons) to discuss topics on a study agenda.
• The purpose of this discussion is to use the social dynamics of
the group, with the help of a moderator/facilitator, to
stimulate participants to reveal underlying opinions, attitudes,
and reasons for their behavior.
• In short, a well-facilitated group can be helpful in finding out
the ‘how’ and ‘why’ of human behavior
This Photo by Unknown Author is licensed under CC BY-SA-NC
5/22/2022 Dr. Mahesh H. Koltame CC-BY 24
25. Characteristics of FDG
➢Identify the target market (people who
possess certain characteristics).
➢Provide a short introduction and background
on the issue to be discussed.
➢Have focus group members write their
responses to the issue(s).
➢Facilitate group discussion.
➢Recommended size of the sample group is 6
- 10 people
➢Several focus groups should be used in order
to get a more objective and macro view of
theinvestigation,
This Photo by Unknown Author is licensed under CC BY-SA-NC
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26. Focus groups might be used to -
✓ explore new research areas;
✓ explore a topic that is difficult to observe (not easy to gain access);
✓ explore a topic that does not lend itself to observational techniques (e.g. attitudes
and decision making);
✓ explore sensitive topics;
✓ collect a concentrated set of observations in a short time span;
✓ ascertain perspectives and experiences from people on a topic, particularly when
these are people who might otherwise be marginalized;
✓ gather preliminary data;
✓ aid in the development of surveys and interview guides;
✓ clarify research findings from another method;
✓ explore the range of opinions/views on a topic of interest;
✓ collect a wide variety of local terms and expressions used to describe a disease (e.g.,
diarrhea) or an act (e.g., defecation);
✓ explore meanings of survey findings that cannot be explained statistically.
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