Validation of a French Version of the Nondual Awareness Dimensional Assessment-Trait
Andréa Oddos, Guy Gimenez, S. Khalfa
SAGE Open October 1, 2025 Peer reviewed DOI: 10.1177/21582440251403827 via OpenAlex
Summary
The French version of the Nondual Awareness Dimensional Assessment-Trait (NADA-T) scale, designed to measure predisposition to nondual awareness achieved through mindfulness meditation, was validated using data from 294 French-speaking students. The study found that the scale demonstrated good construct validity, internal consistency, and both convergent and discriminant validity. While the psychometric properties are acceptable, further studies are necessary to confirm the factor structure and test temporal stability in diverse populations.
Study at a glance
| Sample size | 294 |
|---|---|
| Population | French-speaking students |
| Key finding | The French version of the NADA-T scale shows acceptable psychometric properties for measuring predisposition to nondual awareness. |
Abstract
Nondual awareness (NDA), a unified, unchanging state of consciousness devoid of other phenomenal contents, can be achieved by various means such as contemplative practices. NDA seems to have a beneficial effect on well-being. This study aimed to validate a French version of the Nondual Awareness Dimensional Assessment-Trait (NADA-T) scale used to measure predisposition to NDA in the context of mindfulness meditation, during experiences with reduced phenomenal content, referring to a marked decrease in usual mental activity. To do this, 294 French-speaking students anonymously completed an online survey to allow us to examine the construct validity, internal consistency, and convergent and discriminant validity of the French version of the NADA-T. They also provided information about their meditation practice or other experiences that led them to experience this state of non-duality. The original structure, with one global factor (NDA) and two specific factors (self-transcendence and bliss), showed very good statistical indicators. In addition, the results showed good convergent and discriminant validity. Recommendations to address some of the study’s limitations included reformulating 2 items. However, although this preliminary French version of the NADA-T shows acceptable psychometric properties in a student population, further studies are needed to confirm the factor structure, test temporal stability, and extend these results to other populations.