Campus Location

Dallas Campus (Online)

Date of Award

10-2025

ORCID

https://orcid.org/0009-0007-1005-7974

Document Type

Dissertation

Department

Organizational Leadership

Degree Name

Doctor of Education

Committee Chair or Primary Advisor

Lawrence Santiago

Second Committee Member or Secondary Advisor

Raquel Ellis

Third Committee Member or Committee Reader

Joseph Cardot

Abstract

This dissertation examined how a U.S. national lifestyle medicine residency curriculum influenced resident learning and practice using a program evaluation paradigm with a convergent mixed methods design guided by Kirkpatrick’s four-level evaluation model. The problem addressed was the persistent gap between evidence for lifestyle interventions and the limited preparation residents receive to deliver lifestyle counseling in routine care. The purpose of the study was to evaluate changes in residents’ reactions, learning, and clinical behaviors and to identify early patient-level signals and the implementation conditions that enabled or constrained behavior change. Quantitative methods analyzed archived pre- and posttraining surveys from 148 residents across multiple specialties and sites. Data collection included item-level reaction, knowledge, confidence, and behavior ratings; procedures included data cleaning, descriptive statistics, paired nonparametric tests appropriate for ordinal outcomes, and effect size estimation, with valid denominators reported per item. Qualitative methods included semistructured interviews with 15 residents, conducted via videoconference, transcribed verbatim, member checked, and analyzed using reflexive thematic analysis. Integration used joint displays to connect quantitative movement with qualitative explanations of mechanisms. Quantitative results indicated statistically significant, practically meaningful improvements in knowledge, confidence, and frequency of lifestyle counseling behaviors. Qualitative findings showed that residents incorporated lifestyle practices into daily visits by using brief openers, specific and time-bound goal setting, simple prescriptions, and quick referrals, supported by microworkflows, electronic health record tools, and one-page patient handouts. Reported early patient-level signals included medication reduction, improved clinical measures, and enhanced patient engagement; these signals were self-reported and noncausal. Barriers included time pressure, documentation burden, variable faculty modeling, and inconsistent local resources. Conclusions were that the curriculum was associated with positive movement across Levels 1 to 3 and with plausible early indicators at Level 4 when key drivers were present, such as faculty exemplars, embedded tools, and streamlined workflows. Recommendations included institutionalizing these drivers, expanding faculty development, and conducting follow-on studies that link resident behaviors to electronic health record outcomes using stronger comparative designs.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

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