Test-Retest Reliability of the WB6Dim Digital Well-Being Tool: A 3-Day Interval Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Psychological Well Being. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- France
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Psychometric Validation of Test-Retest Reliability of the WB6Dim Digital Self-Assessment Tool for Well-Being Using a 3-Day Interval Protocol and Contamination Control
Overview
This study aims to establish the test-retest reliability of the WB6Dim digital self-assessment tool across its eight well-being dimensions, using a 3-day interval protocol designed to minimize the probability of genuine well-being changes between assessments. Participants complete the 28-item WB6Dim questionnaire at baseline (T1) and again 3 days later (T2). A single contamination control question at T2 identifies participants who experienced a significant life event during the interval; these pairs are excluded from primary ICC analyses and retained for exploratory analyses. An optional third assessment at 9 weeks (T3) provides preliminary exploratory data on sensitivity to change following access to a well-being program. T3 is not part of the primary design.
Detailed description
The first validation study of the WB6Dim instrument (NCT07301879) established strong internal consistency and convergent validity across N=295 participants. Test-retest reliability was assessed over a 14-day interval on N=92 usable pairs, yielding preliminary ICC estimates ranging from .49 to .77. However, the 14-day interval is methodologically suboptimal for a dynamic monitoring tool: real-life events occurring during two weeks cannot be distinguished from instrument instability, and confidence intervals were wide due to the limited number of pairs.
The present study addresses these limitations through three improvements. First, the interval is reduced to 3 days, substantially reducing contamination risk while avoiding memory-based response bias. Second, a contamination control question is administered at T2 to identify and exclude pairs where a significant life event occurred. Third, the target of N=220 usable pairs produces 95% confidence intervals with maximum width of .20 across all dimensions, meeting the precision threshold for definitive psychometric publication.
Only the 28 WB6Dim items are administered, with no additional gold-standard scales, reducing response burden to approximately 3 minutes per session. Participant matching is performed via email address.
Primary outcome measures
- Test-Retest Reliability (ICC) of the WB6Dim Internal Tension Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Sleep and Recovery Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Energy Reservoir Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Self-Esteem Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Emotional Climate Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Cognitive Saturation Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Hyperconnection Dimension [Time frame: Day 0 to Day 3]
- Test-Retest Reliability (ICC) of the WB6Dim Perceived Autonomy Dimension [Time frame: Day 0 to Day 3]
Secondary outcome measures (2)
- Contamination Rate at T2 [Time frame: Day 3]
- ICC Comparison Between Contamination-Free and Contaminated Pairs [Time frame: Day 0 to Day 3]
Eligibility criteria
Inclusion criteria
- Adults aged 18 years or older
- Able to read and understand French
- Access to an internet-connected device
- Willing to complete the WB6Dim questionnaire at T1 and T2
- Consent to anonymous data collection for research purposes
Exclusion criteria
- Under 18 years of age
- Unable to read or understand French
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Cohort
Study locations
France · 1 center
- Clover Link — Bandol
Publications
- Alitta Q. Validation Study of the WB6Dim Digital Self-Assessment Tool for Well-Being Using Gold-Standard Psychometric Scales. ClinicalTrials.gov NCT07301879. First posted 2025-12-24.
Identifiers
NCT: NCT07433764 · WB6Dim-C-2026