This document provides an overview of qualitative research and qualitative data analysis. It defines qualitative research as collecting and analyzing non-quantitative data through methods like interviews and focus groups. The document outlines different types of qualitative research and analysis techniques including phenomenology, ethnography, case studies, grounded theory, and historical research. It then discusses the process of analyzing qualitative data through coding, content analysis, and identifying themes and patterns. Specific analytical approaches like domain analysis, taxonomic analysis, and componential analysis are also summarized.
Types of variables-Advance Research MethodologyRehan Ehsan
This Presentation states the details of types of variables for students to get help in advance research methodology. Rearchers may also get help from this work.
Analysis of data is a process of inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information, suggesting conclusions, and supporting decision-making.
Types of variables-Advance Research MethodologyRehan Ehsan
This Presentation states the details of types of variables for students to get help in advance research methodology. Rearchers may also get help from this work.
Analysis of data is a process of inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information, suggesting conclusions, and supporting decision-making.
The data, collected for research, has to be processed, analyzed and interpreted to develop a solution to the research question.
Data analysis is a practice in which unorganized or unfinished data is ordered and organized so that useful information can be extracted from it.
It is the most enjoyable part of carrying out the research since after all of the hard works and waiting the researcher gets the chance to find out the answers. So analyzing the data and interpreting the results are the “reward” for the work of collecting the data.
Descriptive statistics are methods of describing the characteristics of a data set. It includes calculating things such as the average of the data, its spread and the shape it produces.
UNIVARIATE & BIVARIATE ANALYSIS
UNIVARIATE BIVARIATE & MULTIVARIATE
UNIVARIATE ANALYSIS
-One variable analysed at a time
BIVARIATE ANALYSIS
-Two variable analysed at a time
MULTIVARIATE ANALYSIS
-More than two variables analysed at a time
TYPES OF ANALYSIS
DESCRIPTIVE ANALYSIS
INFERENTIAL ANALYSIS
DESCRIPTIVE ANALYSIS
Transformation of raw data
Facilitate easy understanding and interpretation
Deals with summary measures relating to sample data
Eg-what is the average age of the sample?
INFERENTIAL ANALYSIS
Carried out after descriptive analysis
Inferences drawn on population parameters based on sample results
Generalizes results to the population based on sample results
Eg-is the average age of population different from 35?
DESCRIPTIVE ANALYSIS OF UNIVARIATE DATA
1. Prepare frequency distribution of each variable
Missing Data
Situation where certain questions are left unanswered
Analysis of multiple responses
Measures of central tendency
3 measures of central tendency
1.Mean
2.Median
3.Mode
MEAN
Arithmetic average of a variable
Appropriate for interval and ratio scale data
x
MEDIAN
Calculates the middle value of the data
Computed for ratio, interval or ordinal scale.
Data needs to be arranged in ascending or descending order
MODE
Point of maximum frequency
Should not be computed for ordinal or interval data unless grouped.
Widely used in business
MEASURE OF DISPERSION
Measures of central tendency do not explain distribution of variables
4 measures of dispersion
1.Range
2.Variance and standard deviation
3.Coefficient of variation
4.Relative and absolute frequencies
DESCRIPTIVE ANALYSIS OF BIVARIATE DATA
There are three types of measure used.
1.Cross tabulation
2.Spearmans rank correlation coefficient
3.Pearsons linear correlation coefficient
Cross Tabulation
Responses of two questions are combined
Spearman’s rank order correlation coefficient.
Used in case of ordinal data
This presentation discusses about content analysis, its use, Types, Advantages, Issues of Reliability & Validity, Problems, Quantitative content analysis, coding, Qualitative content analysis, Creative synthesis, Data reduction and Constant comparison.,
The data, collected for research, has to be processed, analyzed and interpreted to develop a solution to the research question.
Data analysis is a practice in which unorganized or unfinished data is ordered and organized so that useful information can be extracted from it.
It is the most enjoyable part of carrying out the research since after all of the hard works and waiting the researcher gets the chance to find out the answers. So analyzing the data and interpreting the results are the “reward” for the work of collecting the data.
Descriptive statistics are methods of describing the characteristics of a data set. It includes calculating things such as the average of the data, its spread and the shape it produces.
UNIVARIATE & BIVARIATE ANALYSIS
UNIVARIATE BIVARIATE & MULTIVARIATE
UNIVARIATE ANALYSIS
-One variable analysed at a time
BIVARIATE ANALYSIS
-Two variable analysed at a time
MULTIVARIATE ANALYSIS
-More than two variables analysed at a time
TYPES OF ANALYSIS
DESCRIPTIVE ANALYSIS
INFERENTIAL ANALYSIS
DESCRIPTIVE ANALYSIS
Transformation of raw data
Facilitate easy understanding and interpretation
Deals with summary measures relating to sample data
Eg-what is the average age of the sample?
INFERENTIAL ANALYSIS
Carried out after descriptive analysis
Inferences drawn on population parameters based on sample results
Generalizes results to the population based on sample results
Eg-is the average age of population different from 35?
DESCRIPTIVE ANALYSIS OF UNIVARIATE DATA
1. Prepare frequency distribution of each variable
Missing Data
Situation where certain questions are left unanswered
Analysis of multiple responses
Measures of central tendency
3 measures of central tendency
1.Mean
2.Median
3.Mode
MEAN
Arithmetic average of a variable
Appropriate for interval and ratio scale data
x
MEDIAN
Calculates the middle value of the data
Computed for ratio, interval or ordinal scale.
Data needs to be arranged in ascending or descending order
MODE
Point of maximum frequency
Should not be computed for ordinal or interval data unless grouped.
Widely used in business
MEASURE OF DISPERSION
Measures of central tendency do not explain distribution of variables
4 measures of dispersion
1.Range
2.Variance and standard deviation
3.Coefficient of variation
4.Relative and absolute frequencies
DESCRIPTIVE ANALYSIS OF BIVARIATE DATA
There are three types of measure used.
1.Cross tabulation
2.Spearmans rank correlation coefficient
3.Pearsons linear correlation coefficient
Cross Tabulation
Responses of two questions are combined
Spearman’s rank order correlation coefficient.
Used in case of ordinal data
This presentation discusses about content analysis, its use, Types, Advantages, Issues of Reliability & Validity, Problems, Quantitative content analysis, coding, Qualitative content analysis, Creative synthesis, Data reduction and Constant comparison.,
The presentation would help post graduate students, research scholars, academicians and NGOs involved in research to understand research methodology in a simple manner.
To have a clear understanding of research methodology you can view the upcoming presentations which will be uploaded soon.
Types/Approaches of Qualitative data analysisNiru Magar
This slide explores the Types/Approaches used in Qualitative data analysis. These are the 5 approaches ie Content analysis.
Thematic Analysis
Discourse analysis.
Framework analysis.
Grounded theory
Introduction
In life, there are universal laws that govern everything we do. These laws are so perfect that if you were to align yourself with them, you could have so much prosperity that it would be coming out of your ears. This is because God created the universe in the image and likeness of him. It is failure to follow the universal laws that causes one to fail. The laws that were created consisted of the following: ·
Law of Gratitude: The Law of Gratitude states that you must show gratitude for what you have. By having gratitude, you speed your growth and success faster than you normally would. This is because if you appreciate the things you have, even if they are small things, you are open to receiving more.
Law of Attraction: The Law of Attraction states that if you focus your attention on something long enough you will get it. It all starts in the mind. You think of something and when you think of it, you manifest that in your life. This could be a mental picture of a check or actual cash, but you think about it with an image.
Law of Karma: the Law of Karma states that if you go out and do something bad, it will come back to you with something bad. If you do well for others, good things happen to you. The principle here is to know you can create good or bad through your actions. There will always be an effect no matter what.
Law of Love: the Law of Love states that love is more than emotion or feeling; it is energy. It has substance and can be felt. Love is also considered acceptance of oneself or others. This means that no matter what you do in life if you do not approach or leave the situation out of love, it won't work.
Law of Allowing: The Law of Allowing states that for us to get what we want, we must be receptive to it. We can't merely say to the Universe that we want something if we don't allow ourselves to receive it. This will defeat our purpose for wanting it in the first place.
Law of Vibration: the Law of Vibration states that if you wish on something and use your thoughts to visualize it, you are halfway there to get it. To complete the cycle you must use the Law of Vibration to feel part of what you want. Do this and you'll have anything you want in life.
For everything to function properly there has to be structure. Without structure, our world, or universe, would be in utter chaos. Successful people understand universal laws and apply them daily. They may not acknowledge that to you, but they do follow the laws. There is a higher power and this higher power controls the universe and what we get out of it. People who know this, but wish to direct their own lives, follow the reasons. Successful people don't sit around and say "I'll try," they say yes and act on it.
Chapter - 1
The Law of Attraction
The law of attraction is the most powerful force in the universe. If you work against it, it can only bring you pain and misery. Successful people know this but have kept it hidden from the lower class for centuries because th
CHOOSING A QUALITATIVE DATA ANALYSIS (QDA) PLAN
Data Analysis should change what you do, not just how you do it. - Matin Movassate
If you are to choose the right data analysis plan for your study, it is first pertinent to collect qualitative data. Since Qualitative analysis is more about the meaning of the analysis, it is too confusing with unstructured and huge data. For conducting Data Analysis for any research, it is also important to have the right methodology. If the data and methods of data analysis plan are right, it will have numerous benefits, including taking the right decisions.
But before that, there are certain fundamental details to know before choosing the right data analysis plan, which includes:
What is a qualitative data analysis?
QDA is based on interpretative policy to examine the symbolic and meaningful content of data. In other words, it is interpreting the qualitative data by many processes and procedures to transform them into great insights for taking dynamic decisions.
What is qualitative data?
Descriptive data that are non-numerical and capturing concepts and opinions, values and behaviors of people in a social context is called Qualitative data Collection. It is the data from observation of audio and video recordings and also reading the transcripts of interviews and copies of documents.
What purpose does the qualitative data analysis plan perform?
Unlike Quantitative data analysis, which is more of numbers and statistics, qualitative analysis is analysis of subjective and non-numerical qualitative data. Hence it performs many functions including:
• Organizing data
• Interpreting data
• Identifying patterns
• Forming the basis for informed and verifiable conclusions
• Ties research objectives to data
After knowing the above fundamentals of Qualitative data analysis, it is time to choose the right data analysis plan. The plans can be selected for specific research design and can also be applied for a variety of research designs.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Explore our comprehensive data analysis project presentation on predicting product ad campaign performance. Learn how data-driven insights can optimize your marketing strategies and enhance campaign effectiveness. Perfect for professionals and students looking to understand the power of data analysis in advertising. for more details visit: https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
Chatty Kathy - UNC Bootcamp Final Project Presentation - Final Version - 5.23...John Andrews
SlideShare Description for "Chatty Kathy - UNC Bootcamp Final Project Presentation"
Title: Chatty Kathy: Enhancing Physical Activity Among Older Adults
Description:
Discover how Chatty Kathy, an innovative project developed at the UNC Bootcamp, aims to tackle the challenge of low physical activity among older adults. Our AI-driven solution uses peer interaction to boost and sustain exercise levels, significantly improving health outcomes. This presentation covers our problem statement, the rationale behind Chatty Kathy, synthetic data and persona creation, model performance metrics, a visual demonstration of the project, and potential future developments. Join us for an insightful Q&A session to explore the potential of this groundbreaking project.
Project Team: Jay Requarth, Jana Avery, John Andrews, Dr. Dick Davis II, Nee Buntoum, Nam Yeongjin & Mat Nicholas
Analysing qualitative data from information organizations
1. Topic:
Analysing Qualitative Data from
Information Organizations
Submitted By: Aleeza Ahmad
Roll No. 07
M.Phil (LIS) Second Semester
Minhaj University, Lahore
Submitted to: Dr. Nadeem Siddique
2. What is Research?
• Research
• Research is defined as a careful consideration of study regarding a particular concern
or a problem using scientific methods
• Research can be classified in many different ways on the basis of the
methodology of research, the knowledge it creates, the user group, the
research problem it investigates etc.
• Basic Research
• Applied Research
• Qualitative Research
• Quantitative Research
• Descriptive Research
• Analytical Research
3. Qualitative Research
• Qualitative research presents a non-quantitative type of analysis
• Qualitative research is collecting, analyzing and interpreting data by observing
what people do and say
• Qualitative research refers to the meanings, definitions, characteristics, symbols,
metaphors, and description of things. Qualitative research is much more
subjective and uses very different methods of collecting information ,mainly
individual, in-depth interviews and focus groups
• The nature of this type of research is exploratory and open ended. Small number
of people are interviewed in depth and or a relatively small number of focus
groups are conducted. Qualitative research can be further classified in the
following types:
• I. Phenomenology
• II. Ethnography
• III. Case study
• IV. Grounded theory
• V. Historical research
5. Overview of Data Analysis
• When field work ends, the researcher begins the equally important
chore of formal data analysis
• While there are numerous approaches to the analysis of qualitative
data, Miles and Huberman usefully summarize such analysis as a
combination of:
• Data reduction
• Data display
• Conclusion drawing and verification
6. Role of Researcher
• To analyse qualitative data you, the researcher, must move between
the role of the scientist and that of the artist
• Researcher-Scientist
• Researcher-Artist
• Interpretive skills require that the researcher engage in both
convergent and divergent thinking
• Wolcott describes data as the process in which the researcher
considers units of data such as words, behavior, events and ideas, as
well as the properties of these units. From analysis you must then
move to the process of interpretation
7. Data Analysis Process
• Data analysis may involve coding, content analysis or ethnographic
analysis
• Whatever the technique employed, it follows a nonlinear process of
seeing a pattern, returning to the data or the study setting, and
exploring or confirming the facilitates the identification of essential
features and the systematic description of interrelationships among
them – in short how things work
8. Preliminary Data Analysis
• Data analysis is the process of bringing order, structure and meaning
to the mass of collected data
• It does not proceed in a tidy linear fashion. Rather, it is a messy,
ambiguous, time – consuming, creative and fascinating process
• The purpose of this process is to search for general statement about
relationships among categories of data
9. Preliminary Data Analysis Process
Researcher-as-research-instrument function as information processor
Uses selective perception to tease out notable events or comments
Determines preliminary units of data
Creates initial broad categories for data units
10. Process of Identifying Initial Data Categories
Read a Unit of Data
Read Next Unit of data Assign a Category
Yes
Is it the same Category
No
Assign New Category
11. Detailed Data Analysis
• Essentially, this more detailed data analysis involves reconfiguring the units
of data in order to view the phenomena from fresh perspectives, and
watching for emergent theories pertinent to the enquiry. To achieve the
required understanding of what an investigation has discovered, and to
interpret it meaningfully and contextually, researchers employ numerous
methods of qualitative data analysis
• Among them are:
• Affixing codes to a set of field notes
• Noting reflections or other remarks in margins of notes
• Sorting and sifting data to identify key events, phrases, relationships between
variables, patterns, themes
• Confirming Patterns and themes through additional data collection and analysis
• Developing new theories or contributing to existing theories
12. Coding and Content Analysis
• Qualitative research data consist primarily of text (such as interview
transcripts, observations and field notes)
• For this reason analysis demands that investigators consider the
semantic relationships of words by describing and classifying
terminology unique to the enquiry.
• According to Mead, ‘data analysis involves taking constructions
gathered from the context and reconstructing them into meaningful
words’
13. Coding
• Such classification of terminology and language constructs goes by many
names
• Lincoln and Guba, for example, refer to the process of analyzing textual
data as ‘unitizing’ or disaggregating data into the smallest pieces of
information that may stand alone as independent thoughts in the absences
of additional information other than a broad understanding of the context
• Miles and Huberman, on the other hand, speak of ‘chunks’ of data, which
during analysis are assigned codes
• Glesne recommend that you begin with a simple coding scheme
• Inevitably the codes will change, expand and collapse, creating a data
management nightmare
14. Content Analysis
• Another approach to textual data analysis in qualitative enquiries is
the use of content analysis
• This classifies textual material by reducing it to more relevant,
manageable bits of data
• Content analysis can involve the use of qualitative data collection
methods, either alone or in combination with quantitative analysis
15. Ethnographic Data Analysis
• Another form of data analysis in qualitative studies involves use of the
ethnographic analytical model
• Spardley’s analytical model of ethnographic analysis can provide both
methodological guidance and also facilitate the ‘systematic
examination of something to determine its parts, the relationship
among parts, and their relationship to the whole’
• The data for the study may be drawn from:
• Observation field notes
• Reflexive journal notes
• Individual interview and focus group transcripts
16. Domain Analysis
• Domains in data analysis are categories that include other categories
• The domain structure includes a cover term, included terms, and
semantic relationship of these terms
• Primary analytical goal of researcher is to find patterns that exist in
the research data
17. Taxonomic Analysis
• In Spardley’s model the next step in formal data analysis uses
taxonomic analysis to identify patterns in the organization of cultural
domains
• During this process the researcher begins to focus the data analysis
• The taxonomy differs from a domain in that it shows the relationship
among all the terms in domain
18. Componential Analysis
• Once taxonomic analysis has been completed the next logical step is
to consider the descriptive attributes (components of meaning) of
terms in each domain. This is referred to as componential analysis
19. Theme Analysis
• The final analytical strategy used in ethnographic research is theme
analysis
• Theme analysis seeks to discover and identify the relationships
among domains and connections with the description of a study’s
cultural setting
20. Memos and Visual Displays
• During data analysis one challenge for the researcher is to remain at arm’s
length from the flood of particulars
• Data analysis requires immersion, but the researcher also must be able to
stand back and reflect on the meaning of data – an uncomfortable
combination of experience – near and experience – distant
• Notes written by the researcher to her/himself, or ‘memos’, offer one way
to stand back from data immersion
• Strauss and Corbin define the memo as written form of abstract thinking
and general design, a graphic representation of visual images, used
particularly to demonstrate the relationships between concepts
• The reflexive journal is a place in which the researcher deliberately looks
up and away from empirical data to conceptual levels of an investigation
21. Cont…..
• In addition to memos another important technique for understanding
data is the use of figures, tables, matrices and other illustrations –
although these are most easily employed with empirical data
22. Using Computers for Qualitative Data Analysis
• The key to using computers in qualitative research is to know on the
one hand what computers can do and, on the other, what you want
or need to do
• Miles and Huberman offer sound, extended advice on both counts
• Summary is:
• Entering and editing notes
• Coding notes
• Storing and Retrieving data
• Memo-writing and theory building
• Displaying and mapping data
23. Review
• This chapter has attempted to clarify the goals and components of
the qualitative data analysis process
• Some of the complexity and challenge of systematically categorizing,
coding, comparing and reconfiguring enormous quantities of data, all
of which support the process of searching for meaning in the many
patterns and themes has been introduced
• The process of data analysis is time – consuming and ambiguous, but
the creative search for patterns and themes in data will reward the
qualitative researcher with fresh insights into the operation of
information organizations