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NCT Number: NCT07433764

Test-Retest Reliability of the WB6Dim Digital Well-Being Tool: A 3-Day Interval Study

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.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Primary outcomes

  1. Test-Retest Reliability (ICC) of the WB6Dim Internal Tension Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  2. Test-Retest Reliability (ICC) of the WB6Dim Sleep and Recovery Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  3. Test-Retest Reliability (ICC) of the WB6Dim Energy Reservoir Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  4. Test-Retest Reliability (ICC) of the WB6Dim Self-Esteem Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  5. Test-Retest Reliability (ICC) of the WB6Dim Emotional Climate Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  6. Test-Retest Reliability (ICC) of the WB6Dim Cognitive Saturation Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

  7. Test-Retest Reliability (ICC) of the WB6Dim Hyperconnection Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1.Higher values indicate greater temporal stability.

  8. Test-Retest Reliability (ICC) of the WB6Dim Perceived Autonomy Dimension

    Time frame: Day 0 to Day 3

    ICC(1,1) on contamination-free T1/T2 pairs. Score range: 0 to 1. Higher values indicate greater temporal stability.

Secondary outcomes

  1. Contamination Rate at T2

    Time frame: Day 3

    Proportion of T1/T2 pairs excluded due to a significant life event reported at T2 contamination control question. Reported as percentage.

  2. ICC Comparison Between Contamination-Free and Contaminated Pairs

    Time frame: Day 0 to Day 3

    Exploratory comparison of ICC(1,1) estimates across all 8 WB6Dim dimensions between contamination-free and contaminated pairs, to assess direction and magnitude of contamination effects.

Other outcomes

  1. Exploratory Sensitivity to Change - Sleep and Recovery

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Sleep and Recovery dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  2. Exploratory Sensitivity to Change - Internal Tension

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Internal Tension dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  3. Exploratory Sensitivity to Change - Energy Reservoir

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Energy Reservoir dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  4. Exploratory Sensitivity to Change - Self-Esteem

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Self-Esteem dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  5. Exploratory Sensitivity to Change - Emotional Climate

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Emotional Climate dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  6. Exploratory Sensitivity to Change - Cognitive Saturation

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Cognitive Saturation dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  7. Exploratory Sensitivity to Change - Hyperconnection

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Hyperconnection dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

  8. Exploratory Sensitivity to Change - Perceived Autonomy

    Time frame: Day 0 to Week 9

    Pre-post change score (T1 to T3) and Cohen's d for the Perceived Autonomy dimension, among participants who completed the 9-week follow-up. Reported descriptively if N≥30.

Study contacts

Contact information is provided by the study sponsor or research team.

quentin ALITTA

CONTACT

[email protected]

+33686505361

Sponsors and collaborators

Lead sponsor

Clover Link

Industry

Registry information

Official study 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

Acronym: WB6Dim-TRT

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Feb 25, 2026
Registry last updated
Feb 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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