Mixed methods research offers established strategies for integrating qualitative and quantitative evidence, but less guidance for integrating two computational representations of the same qualitative corpus.
This methodological study introduces Parallel-Then-Integrated (PTI), a four-step procedure for explicit and traceable integration.
We present PTI using 1,203 interview paragraphs from 29 mothers in Nepal.
The two representations were ontology-guided Patient Voice (PV) coding with PVminer and data-driven themes generated through non-negative matrix factorization (NMF).
A theme-complete crosswalk documented convergence, divergence, and preprocessing-sensitive differences.
Depression status, based on Patient Health Questionnaire-9 (PHQ-9) scores, served as a secondary external anchor for exploratory association checks.
PTI provides a structured approach for integrating computational representations of qualitative text within mixed methods research.