Book summary “Qualitative Inquiry and Research Design”: summary

Introduction

You often struggle to choose the right qualitative design because methods overlap and confuse your research goals. You need a clear way to align your philosophical assumptions, interpretive frameworks, and research strategies into a coherent plan. John W. Creswell provides a systematic guide to designing rigorous qualitative projects.

To design rigorous qualitative research, you must align philosophical assumptions, interpretive frameworks, and five core approaches across the entire research process from data collection to validation.

The book guides you through philosophical foundations, methodological design, and five distinct approaches to inquiry. You learn how to collect data, analyze text, and evaluate your final report.

You can answer questions such as:

• What philosophical assumptions drive your study?
• How do you select among five qualitative approaches?
• What steps form the qualitative research process?

1. Philosophical Foundations and Approaches

You must navigate four philosophical assumptions and select an interpretive framework that guides your entire qualitative study.

Four Philosophical Assumptions

Qualitative researchers must navigate four core philosophical assumptions regarding reality, knowledge, values, and methodology that profoundly direct their study. These assumptions shape every decision you make in the field.

• Ontology regarding multiple realities
• Epistemology regarding subjective evidence and closeness to participants
• Axiology regarding the explicit role of researcher values
• Methodology regarding inductive and emerging study procedures

Philosophical assumptions can either remain hidden and be deduced by discerning readers through themes and researcher biases, or be made explicit in a dedicated section of the study. Authors discuss ontology, epistemology, axiology, and methodology explicitly in major journal articles, doctoral dissertations, and conference papers, detailing how these assumptions are exemplified in the study.

Brown et al. (2006) integrate philosophical assumptions alongside a phenomenological approach, Healey (2014) embeds them in a health research model, and Jungnickel (2014) includes them within researcher positionality.

Interpretive Frameworks

Postpositivist qualitative research applies a scientific, reductionistic, logical, and deterministic lens where causes and effects are viewed in terms of probabilities. Often used by researchers with prior quantitative training or in health sciences, postpositivists use a priori theories, employ rigorous systematic steps, utilize computer software, and structure reports like scientific articles. This framework is exemplified in the systematic grounded theory procedures of Strauss and Corbin, the analysis steps of Moustakas, and case comparisons of Yin.

Social constructivism seeks to understand the subjective, multiple meanings that individuals socially and historically construct about their experiences rather than starting with an a priori theory. Researchers rely on open-ended questioning and inductive generation of patterns, positioning themselves to acknowledge how their personal and cultural backgrounds shape their interpretations. Constructivist worldviews are manifest in Moustakas's phenomenological studies and Charmaz's grounded theory perspective.

Transformative frameworks reject the neutrality of knowledge and advocate for an action agenda to empower marginalized groups and reform society. Addressing issues like oppression, hegemony, and discrimination, transformative researchers collaborate directly with participants throughout the research process to ensure their voices are heard and justice is served. Participatory action research examples include the work of Job et al. (2013) on fetal alcohol spectrum disorders.

Pragmatist qualitative research focuses on applications, solutions to real-world problems, and what works rather than committing to a single absolute system of reality. Researchers have the freedom to choose the methods, techniques, and procedures that best meet their needs, often combining qualitative and quantitative data collection. Ethnographers employing both surveys and qualitative data collection, or case study researchers using both quantitative and qualitative data, demonstrate pragmatism.

Critical race theory foregrounds race and racism in all aspects of research to transform power dynamics and dismantle racial subjugation. It aims to present counterstories from people of color to challenge majoritarian master narratives, recognize that race is a fluid social construct, and address intersections with gender and class. Parker and Lynn (2002) and Delgado and Stefancic (2012) outline how critical race theory shapes societal and institutional structures.

2. Designing a Qualitative Study

Qualitative research possesses distinct characteristics including natural settings, the researcher as the key instrument, multiple data sources, and complex inductive-deductive reasoning. Rather than relying on laboratory controls or predetermined surveys, qualitative inquiry embraces emergent designs, participant meanings, context-dependency, reflexivity, and a holistic account. LeCompte and Schensul (1999), Hatch (2002), Marshall and Rossman (2015), and Ravitch and Mittenfelner Carl (2016) outline these shared characteristics.

Good qualitative research requires methodological congruence, careful ethical planning, and an eight-phase research process.

A high-quality study focuses on a single core concept initially, employs robust data collection in the field, and utilizes abstraction from particulars to general themes. You must achieve verisimilitude through persuasive writing.

A student project examining a distance learning class looked at what happened when the camera was turned off, uncovering an unusual angle that enriched the analysis.

Characteristics and Congruence

Qualitative research requires methodological congruence, meaning that purposes, questions, and methods are fully interconnected and interactive. Drawing on Morse and Richards and Maxwell, you must view study components as cohesive and interactive rather than isolated parts. Preliminary design decisions involve determining stances on literature usage, the integration of a priori theory, and the reporting format.

The qualitative research process follows an eight-phase framework that integrates assumptions, literature, open-ended inquiry, data collection, and validation. You can structure your study through this sequence:

• Acknowledge broad assumptions and identify interpretive lens to be used.
• Determine if the research problem/topic is needed to be addressed using a literature search.
• Draft open-ended research questions as exploratory.
• Collect a variety of sources of data.
• Analyze data integrating inductive and deductive strategies.
• Represent results based on participant' perspectives and researcher interpretations.
• Discuss findings and compare with other findings.
• Utilize validation strategies.

Research Ethics

Ethical considerations in qualitative studies must be systematically anticipated and addressed across all phases of the research process. Ethics extend far beyond data collection, encompassing institutional review boards approvals, respect for persons, welfare concern, and justice prior to the study. During the study, you must ensure voluntary participation, cultural respect, avoidance of power imbalances, reciprocity, data security, and unbiased reporting.

Preparation requires specific administrative and interpersonal steps before you enter the field:

• Seek college or university approval.
• Examine professional association standards.
• Gain local access permissions.
• Select a site without a vested interest in the outcome of the study.
• Negotiate authorship for publication.
• Seek permission for use of unpublished instruments or procedures that other researchers might consider to be theirs.
• Contact participants, and inform them of the general purpose of the study.
• Assure participants that their participation is voluntary.
• Find out about cultural, religious, gender, and other differences that need to be respected.
• Obtain appropriate consent.

You must store data and materials in secure locations for 5 years. Avoid going native during fieldwork to maintain professional boundaries.

3. Five Approaches to Inquiry

You can choose among narrative research, phenomenology, grounded theory, ethnography, and case studies based on your primary research goal.

Selecting the correct qualitative approach depends on the primary research focus, ranging from exploring an individual life to analyzing a culture or case. The five approaches align with distinct research problems: narrative research tells individual life stories; phenomenology describes the essence of a lived phenomenon; grounded theory develops participant-grounded theories; ethnography interprets shared culture-sharing group patterns; and case study provides in-depth case analyses.

Deciding Among Approaches

Narrative research captures the detailed lived and told stories of individuals through collaborative inquiry, contextualization, and restorying. Procedures involve selecting individuals, gathering field texts through diverse sources, embedding personal and historical context, restorying the narrative into a chronological framework with plot and scene elements, maintaining collaboration, and reporting through a structured narrative form.

Ruohotie-Lyhty examined the professional identity of two newly qualified language teachers in Finland through contrasting biographical experiences.

You follow specific practice steps when conducting narrative research:

• Determine if the research problem is best examined using a narrative approach.
• Select one or more individuals, and gather their stories through multiple types of information.
• Consider how the data collection and recording can take different shapes.
• Embed information about the context of the stories into data collection, analysis, and writing.
• Analyze the participant stories by using the process of restorying.
• Embed a collaborative approach in the collection and telling of stories.
• Present the narrative in written form by adapting the general reporting structure as appropriate.

Comparative Procedures

Phenomenological research investigates the universal essence of a shared human experience through philosophical reflection, bracketing, and textural-structural descriptions. Rooted in philosophy, phenomenology rejects the subject-object dichotomy and uses epoche or bracketing to set aside researcher preconceptions. Analysis moves from significant statements to meaning units, culminating in textural and structural descriptions of what and how participants experienced the phenomenon.

Cordes used transcendental phenomenology in dissertation work to examine the experiences and perceptions of 13 developmental math students. Heterogeneous phenomenological sample sizes range from 3 to 4 individuals to 10 to 15. Psychological phenomenology requires systematic data collection and analysis steps to describe the common lived experiences of a phenomenon, typically interviewing 5 to 25 individuals.

You complete phenomenological studies by following these practice steps:

• Determine if the research problem is best examined by using a phenomenological approach.
• Identify a phenomenon of interest to study, and describe it.
• Distinguish and specify the broad philosophical assumptions of phenomenology.
• Collect data from the individuals who have experienced the phenomenon by using in-depth and multiple interviews.
• Generate themes from the analysis of significant statements.
• Develop textural and structural descriptions.
• Report the "essence" of the phenomenon by using a composite description.
• Present the understanding of the essence of the experience in written form.

Grounded theory is a qualitative design aimed at moving beyond simple description to generate or discover a unified theoretical explanation for a process or action.

Developed in 1967 in sociology by Barney Glaser and Anselm Strauss, the approach dictates that theories should be directly grounded in data collected from participants experiencing the process rather than relying on a priori theoretical orientations. Systematic grounded theory uses an iterative coding paradigm to connect causal conditions, strategies, context, and consequences into a substantive-level theory. Strauss and Corbin prescribe a rigorous coding structure involving open coding, axial coding around a core phenomenon, and selective coding, supported by continuous memoing and a zigzag data collection process until categories are fully saturated. Fully developing or saturating the model typically requires 20 to 60 interviews.

You apply these steps for grounded theory:

• Determine if grounded theory is best suited to study the research problem.
• Focus the interview questions on understanding how individuals experience the process and identify the steps in the process.
• Theory-building emerges through the simultaneous and iterative data collection, analysis, and memoing processes.
• Structure the various analysis procedures as open, axial, and selective coding.
• Articulate a substantive-level theory to explain the process (or action) that was the focus of the study.
• Present the theory as a discussion or model.

Ethnography focuses on describing and interpreting the shared and learned patterns of values, behaviors, beliefs, and language of an intact culture-sharing group. Ethnographers rely on extensive fieldwork and participant observation to understand how a group functions, filtering the participants' insider emic perspective through the researcher's etic scientific perspective to develop a holistic cultural interpretation.

You execute ethnography through structured practice:

• Determine if ethnography is the most appropriate design for studying the research problem.
• Identify and locate a culture-sharing group to study as well as access considerations.
• Select cultural themes, issues, or theories to study about the group.
• Determine which type of ethnography to use to study cultural concepts.
• Gather information in the context where the group works or lives through extensive fieldwork.
• Generate an overall cultural interpretation of the group from the analysis of many data sources.
• Disseminate the patterns of the culture-sharing group by using a holistic cultural portrait.
• Present the patterns of the culture-sharing group in written or performance formats.

Case study research involves the in-depth exploration of a real-time, contemporary bounded system over time using multiple sources of qualitative information. A case can be an individual, small group, organization, or process, and the intent may be intrinsic, instrumental, or collective.

Asmussen and Creswell used a single instrumental case study of one institution in 1995 to explore campus violence and reactions to a potentially violent incident, revealing five themes: denial, fear, safety, retriggering, and campus planning.

You follow standard case study procedures:

• Determine if the research problem is best examined using a case study approach.
• Identify the intent and case (or cases) for the study as well as case sampling procedures.
• Develop procedures for conducting the extensive data collection, drawing on multiple data sources.
• Specify the analysis approach for developing case description(s) based on themes and contextual information.
• Report the interpreted meaning of the case and lessons learned by using case assertions.

4. Collecting and Analyzing Data

You gather data through a structured circle of interviews and observations, then analyze them using an iterative spiral from coding to interpretation.

Data Collection Circle

The data collection process encompasses locating a site or individual, gaining access and building rapport, purposeful sampling, collecting data, recording information, handling field issues, and securely storing data, with ethics placed at the intersection of all activities. Creswell illustrates this process through a data collection circle where researchers continuously manage field issues and secure storage.

Unlike quantitative probability sampling, qualitative sampling uses strategies such as maximum variation, homogeneous, critical case, or theory-based sampling. Sample sizes vary widely depending on the chosen approach, ranging from single individuals in narratives to 20-30 individuals in grounded theory. Dukes recommends 3 to 10 participants for phenomenology, though ranges span 1 to 325, while Yin suggests no more than 4 or 5 case studies in a single study. Harley et al. utilized sorority contacts to access a homogeneous sample of African American women for grounded theory.

You follow specific steps when collecting qualitative data:

• Locate a site or individual.
• Gain access and develop rapport.
• Sample purposefully.
• Collect data using multiple forms.
• Record information using protocols.
• Minimize field issues.
• Store data securely.

Interviewing requires setting up open-ended questions, purposeful sampling, proper recording equipment, a pilot-tested interview protocol, a distraction-free location, consent, active listening, and predetermined transcription logistics. You can use an interview protocol containing approximately 5 to 7 open-ended questions.

Observing requires selecting a site, gaining access, determining the observer role on a participant-observer continuum, utilizing an observational protocol, building rapport, and recording thick narrative descriptions.

Data Analysis Spiral

Qualitative data analysis is an iterative process conceptualized as a spiral rather than a linear sequence. Rather than following a fixed linear path, researchers move in analytic circles starting from raw text or audiovisual materials and exiting with a final account, passing through management, reading, describing, interpreting, and visualizing loops.

Researchers should employ lean coding by starting with a small initial set of categories and refining them rather than creating massive code lists.

Beginning researchers often generate 100 to 200 codes, making it difficult to reduce the data into the final five to six themes required for publication. A lean approach begins with five or six shorthand codes and expands carefully up to a maximum of 25 to 30 categories.

Phenomenological research relies on structured analysis methods like Moustakas's modified Stevick-Colaizzi-Keen approach to extract the essential experience of a phenomenon. Riemen studied caring interactions by presenting significant statements and meaning statements in tables, followed by exhaustive descriptions of the essence.

Grounded theory builds a theoretical model of a process through three systematic phases of coding: open, axial, and selective. Harley et al. investigated physical activity participation among African American women, displaying their grounded theory model through three distinct phases in a figure.

You apply specific practices during analysis:

• Create and organize data files.
• Read through text, make margin notes, and form initial codes.
• Describe and classify codes into themes.
• Develop and assess interpretations.
• Represent and visualize the data.

Case study analysis requires a detailed description of the case context followed by categorical aggregation, direct interpretation, or cross-case synthesis. Frelin analyzed relational practices for students with school failure histories, while Asmussen and Creswell aggregated campus response data following a student gunman incident into 20 categories and five themes.

5. Writing and Evaluating Studies

You ensure the trustworthiness of your study by applying rigorous validation strategies and aligning your writing structures with your chosen approach.

Modern qualitative writing rejects the distanced narrator in favor of reflexivity. You must explicitly detail your past experiences with the phenomenon and discuss how those values shape your findings.

Writing Strategies

Ethical reporting requires careful adherence to publication standards adapted from the 2010 APA guidelines and 2016 Creswell recommendations. You must protect participant confidentiality and secure permissions before including any proprietary materials.

• Obtain permission for the use of unpublished proprietary instruments, procedures, or data.
• Properly cite all published work presented in portions of the manuscript.
• Prepare to answer questions about institutional review and informed consent procedures.
• Confirm that all authors reviewed the manuscript and agreed on content responsibility and authorship order.
• Protect the confidentiality of research participants, organizations, and third parties.
• Obtain permission for any copyrighted material included.

Anderson and Spencer utilized paragraph-long quotes from participants to convey the magic of not thinking theme regarding living with AIDS. You can incorporate quotations of varying lengths to provide concrete evidence within your report.

Standards of Validation

Lincoln and Guba use naturalistic equivalents like credibility, transferability, dependability, and confirmability to establish trustworthiness. You should engage in at least two validation strategies across the researcher, participant, and reader lenses.

Reliability can be assessed through intercoder agreement procedures among multiple researchers. Miles and Huberman recommend a minimum coding agreement of 80 percent on passages, while Miles, Huberman, and Saldaña suggest an agreement range of 85 to 90 percent depending on the coding scheme size.

• Establish a common platform for coding, and develop a preliminary code list.
• Define and share the initial codebook among coders.
• Apply the codebook to additional transcripts, and compare coding across multiple researchers.
• Assess and report the intercoder agreement among researchers.
• Revise and finalize the codebook to inform further coding.

10 Key Ideas

1. Qualitative researchers must navigate four core philosophical assumptions regarding reality, knowledge, values, and methodology that profoundly direct their study.
2. Ethical considerations in qualitative studies must be systematically anticipated and addressed across all phases of the research process.
3. Selecting the correct qualitative approach depends on the primary research focus, ranging from exploring an individual life to analyzing a culture or case.
4. Grounded theory is a qualitative design aimed at moving beyond simple description to generate or discover a unified theoretical explanation for a process or action.
5. Qualitative sampling uses strategies such as maximum variation, homogeneous, critical case, or theory-based sampling, with sample sizes varying widely depending on the chosen approach.
6. Interviewing requires setting up open-ended questions, purposeful sampling, proper recording equipment, a pilot-tested interview protocol, a distraction-free location, consent, active listening, and predetermined transcription logistics.
7. Observing requires selecting a site, gaining access, determining the observer role on a participant-observer continuum, utilizing an observational protocol, building rapport, and recording thick narrative descriptions.
8. Researchers should employ lean coding by starting with a small initial set of categories and refining them rather than creating massive code lists.
9. You ensure the trustworthiness of your study by applying rigorous validation strategies and aligning your writing structures with your chosen approach.
10. Reliability can be assessed through intercoder agreement procedures among multiple researchers.