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Peer-reviewed article · Nutrition in Clinical Practice · 2025American Society for Parenteral and Enteral Nutrition logo
Peer-reviewed article

Bowling Green State University triangulated dietitian interviews with AI thematic analysis

A 2025 study led from Bowling Green State University with the Academy of Nutrition and Dietetics, published open access in Nutrition in Clinical Practice (Wiley, on behalf of ASPEN), used Evidano to triangulate its reflexive thematic analysis of interview data.

The study used Evidano, then published as AILYZE.

10
dietitians interviewed
5
clinical sites
6
themes from 28 manually refined codes
2
independent Evidano analyses: AI coding plus the researchers’ codebook
The study

Implementation of clinical practice guidelines using the Plan-Do-Study-Act framework

The multisite hybrid implementation study, part of the Academy’s Health Informatics Infrastructure Registry Study on gestational diabetes, ran from 2020 to 2023. Ten registered dietitians at five clinical sites completed every activity, and each gave a semi-structured closing interview conducted by the principal investigator. Authors are affiliated with Bowling Green State University, the Academy of Nutrition and Dietetics, and the University of New Mexico.

The article is open access under a CC BY licence, was approved by the Bowling Green State University Institutional Review Board, and follows the Standards for Reporting Qualitative Research.

How Evidano was used

The team analysed the interview transcripts using a constructivist approach and reflexive thematic analysis (Braun and Clarke), with three rounds of manual coding that consolidated 52 initial codes into 28 codes under six themes. To support triangulation, Evidano then generated two independent thematic analyses: one from AI-generated coding, and one using the researchers’ own codebook. Both were compared against the team’s manual coding.

The AI-coded run produced a coarser structure of three themes and 12 subthemes. When the researchers’ codebook was applied, the tool demonstrated continuity with the manual coding and, in the authors’ words, augmented their analysis and analytic reflexivity. The final themes were then mapped onto Normalization Process Theory and the Consolidated Framework for Implementation Research.

How Evidano fit the workflow

  1. 1
    Interview transcripts from 10 dietitians
  2. 2
    Three rounds of manual reflexive coding: 52 codes refined to 28 under 6 themes
  3. 3
    Evidano generates two independent analyses: AI coding plus the researchers’ codebook
  4. 4
    AI output compared with the team’s manual coding
  5. 5
    Triangulated, researcher-validated themes mapped to implementation frameworks
“To support analytic triangulation, AILYZE, an artificial intelligence (AI)–powered qualitative analysis tool was used to generate two independent thematic analyses: one based on AI‐generated coding and another using the researcher‐developed codebook.”
— From the publication, Methods (AILYZE is now Evidano)
“When our codebook was applied, the AI tool demonstrated continuity with manual coding and augmented our analysis and analytic reflexivity.”
— From the publication, Results
“...an independent lens to complement but not replace the researcher's analysis.”
— From the publication, Discussion
Analytic triangulation

An independent lens to cross-check and strengthen your coding.

Use your own codebook

Apply your codebook or an AI-suggested one, as in the study.

Transparent and citable

Disclose and cite AI use, keeping the workflow auditable.

You stay in control

AI supports the analysis; the researcher makes the call.

About Evidano (previously AILYZE)

Evidano is AI-assisted qualitative data analysis software for interviews, focus groups, open-ended survey responses, and documents. It supports AI-assisted thematic analysis with your own or an AI-suggested codebook, transcription and translation in 100+ languages, clickable quotes and citations, and exportable visual reports. End-to-end encryption, no third-party data sharing, and your data is not used to train AI. From USD 50/month for unlimited analysis.

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