analyzing qualitative data. .pptx

RitaSosan 24 views 36 slides Oct 02, 2024
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About This Presentation

Introduction to nursing research


Slide Content

Qualitative Data Analysis

Session Objectives By the end students will have an appreciation of: Define data analysis explain the analysis of qualitative data The principles of analysing qualitative data The Qualitative Analytical Process Qualitative Data Management Tools How to present qualitative results

Qualitative Data Data analysis is the process of making meaning from the data Written field notes Audio recordings of conversations Video recordings of activities Diary recordings of activities / thoughts

Qualitative Data Depth information on: T houghts , views, interpretations P riorities , importance P rocesses , practices I ntended effects of actions F eelings and experiences

Qualitative Research Goals Meaning: how people see the world Context: the world in which people act Process: what actions and activities people do Reasoning: why people act and behave the way they do Maxwell, 2005

What is qualitative data analysis? A complex process that involves moving back and forth between concrete bits of data and abstract concepts between inductive and deductive reasoning between description and interpretation Data analysis is the process of making meaning from the data

Preliminary Analysis Explore the data by reading and re-reading through all of your information to obtain a general sense of the information Memo ideas while thinking about the organization of the data and considering whether more data are needed Data from interview, group discussion, field notes, transcripts, documents, photos etc

Principles of Analysing Qualitative Data Proceed systematically and rigorously (minimise human error) Record process, memos, journals, etc. Focus on responding to research questions Appropriate level of interpretation appropriate for situation Time (process of inquiry and analysis are often simultaneous) Seek to explain or enlighten Evolutionary/emerging

The Analysis Continuum Raw Data Descriptive Statements Interpretation

1. Analysis Considerations Words Context (tone and inflection) Internal consistency (opinion shifts during groups) Frequency and intensity of comments (counting, content analysis) Specificity Trends/themes Iteration (data collection and analysis is an iterative process moving back and forth)

2. The Procedures Coding/indexing Categorisation Abstraction Comparison Dimensionalisation Integration Iteration Refutation (subjecting inferences to scrutiny) Interpretation (grasp of meaning - difficult to describe procedurally)

The Qualitative Analytical Process (Adapted from descriptions of Strauss and Corbin, 1990, Spiggle 1994, Miles and Huberman, 1994) Components Procedures Outcomes Data Reductions Data Display Conclusions & Verification Coding Categorisation Abstraction Comparison Dimensionalisation Integration Interpretation Description Explanation/ Interpretation

Developing Descriptions & Themes from the Data Coding data Developing a description from the data Defining themes from the data Connecting and interrelating themes

Coding Data Open Coding Assign a code word or phrase that accurately describes the meaning of the text segment Line-by-line coding is done first in theoretical research More general coding involving larger segments of text is adequate for practical research (action research)

Systematic Coding Categories are created ahead of time from existing literature from previous open coding Code the data just like open coding

Clustering After open coding an entire text, make a list of all code words Cluster together similar codes and look for redundant codes Objective: reduce the long list of codes to a smaller, more manageable number (25 or 30)

Affinity Diagramming Goal: what are the main themes? Write ideas on sticky notes Place notes on a large wall / surface Group notes hierarchically to see main themes

Preliminary Organizing S cheme Take this new list of codes and go back to the data Reduce this list to codes to get 5 to 7 themes or descriptions Themes are similar codes aggregated together to form a major idea in the database Identify the 5-7 themes by constantly comparing the data (Constant Comparative Analysis)

Constant Comparative Analysis A process whereby the data gradually evolve into a core of emerging theory This core is a theoretical framework that further guides the collection of data Major modifications are lessened as comparisons of the next incidents of a category to its properties are carried out (Merriam, 1998).

Why themes? It is best to write a qualitative report providing detailed information about a few themes rather than general information about many themes Themes can also be referred to as Categories

Naming the Themes or Categories The names can come from at least three sources: The researcher The participants The literature Most common: when the researcher comes up with terms, concepts, and categories that reflect what he or she sees in the data

Themes should… Reflect the purpose of the research Be exhaustive--you must place all data in a category Be sensitizing--should be sensitive to what is in the data i.e., “leadership” vs. “charismatic leadership” Be conceptually congruent--the same level of abstraction should characterize all categories at the same level

Types of Themes Ordinary: themes a researcher expects Unexpected: themes that are surprises and not expected to surface Hard-to-classify: themes that contain ideas that do not easily fit into one theme or that overlap with several themes Major & minor themes: themes that represent the major ideas, or minor, secondary ideas in a database Minor themes fit under major themes in the write up

A Description A detailed rendering of people, places, or events in a setting in qualitative research Codes such as “seating arrangements,” “teaching approach,” or “physical layout of the room,” might all be used to describe a classroom where instruction takes place

Narrative Description From the coding and the themes, construct a narrative description and possibly a visual display of the findings for your research report

Making Comparisons with the Literature Interpret the data in view of past research Show how the findings both support and contradict prior studies “ These findings are consistent with other studies in regard to duration. It has been found that the length or duration of service learning projects has an impact on student outcomes, with the longer duration projects having greater impacts. However, significant differences are not found in projects lasting over 18 weeks (Conrad & Hedin, 1981). The project on which this study focused was examined over a year and a half period of time; thus it is considered to be long in duration which helps to explain its impact on student outcomes.”

Qualitative Data Management Tools QSR NUD.IST (Non-numerical unstructured data indexing searching and theorising) Enables efficient data management by supporting the processes of indexing, searching and hence data theorising Creates an environment to store and explore data and ideas, it does not determine the research approach. The major advantage of the package is that it enables an efficient and flexible approach to rigorously and systematically analysing qualitative data.

QSR NUD.IST The QSR NUD.IST software tools are incorporated into two interlocking systems; a document system and an index system Document Database Enables text to be stored, edited and retrieved; memos to record ideas can be attached to text; and word and phrase searches can be conducted on the documents Index Database Enables the researcher to: code the data; conduct multiple concept or coded category searches thereby providing responses to research questions and theory development; and provides the means to record ideas about the data through memos attached to the various indices

Software: ATLAS.ti http://www.atlasti.com/ -- free trial available

Validating the Accuracy of Findings At the end, the qualitative researcher validates the finding by determining the accuracy or credibility of the findings. Methods include: Prolonged engagement & persistent observation in the field Triangulation Peer Review Clarifying researcher bias Member Checking Rich, thick description External Audit

Reliability or Dependability From a quantitative perspective, reliability refers to the extent to which research findings can be replicated From a qualitative perspective, dependability, (reliability) in qualitative research is not based on outsiders getting the same results, but that outsiders concur that, given the data collected, the results make sense. In other words, the results are dependable and consistent (Lincoln & Guba , 1985).

External Validity Concerned with the extent to which the findings of one study can be applied to other situations External validity is problematic in qualitative research because “In qualitative research, a single case or small nonrandom sample is selected precisely because the researcher wishes to understand the particular in depth, not to find out what is generally true of the many” (Merriam, 1998, p. 208).

References Polit.FD,Beck.TC .(2004).nursing research principle and method.7 th edition. Lippincot Williams & Wilkins Philadelphia New York. Nirmala.V , and Edison.JS.(2011).research methodology in nursing. Jaypee brothers medical publishers(p)LTD London UK. Powell.TE , and Renner M.(2003).analyzing qualitative data. Program development and evaluation university of Wisconsim Madison Wisconsim .
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