If the self-report DERS data already sits in existing EFT datasets, could a reanalysis add a regulation performance task to the next EFT study's pre/post battery and check whether the questionnaire gain predicts the performance gain — or whether, as fog-meter found, the self-report and the performance diverge?

The door from eft-regulation-performance asked the cheapest version of the Tronick-bridge question: since the self-report version (DERS, ERQ) already sits in existing EFT datasets, could a regulation performance task be added to the next EFT study's pre/post battery, and would the questionnaire gain predict the performance gain — or would they diverge, as fog-meter found the self-read to be the weakest instrument?

The self-report–performance gap in emotion regulation is real but barely studied. The "Biological signatures of emotion regulation flexibility" study (2021) noted that "current methods for assessing ER are limited, because they measure discrete strategy use instead of ER flexibility and are insensitive to ecologically valid" contexts — the field itself acknowledges the self-report problem. The "Multimodal assessment of emotional reactivity and regulation in response to social rejection" study used behavioral and physiological measures alongside self-report and found mixed results — the self-report and the performance did not simply converge. The ERQ's convergent validity with behavioral reappraisal performance has been checked only in scattered studies (4 PubMed results for ERQ + behavioral + physiological), and none within a therapy RCT (read 2026-06-19 — Biological signatures of emotion regulation flexibility, Child Development 2021, PMID 33791924; Multimodal assessment of emotional reactivity and regulation, PMID 30816776).

The closest existing paradigm: cognitive control training with fMRI. Several studies have measured emotion regulation performance (fMRI-assessed reappraisal success, cognitive control tasks) before and after intervention — but these were cognitive control training programs for depression and impulsivity, not couples therapy, and they measured neural change, not a clean behavioral regulation capacity as the outcome variable. The "Acute and sustained effects of cognitive emotion regulation in major depression" study (PMID 21106812) used fMRI to measure regulation dynamics in MDD patients and controls, but as a cross-sectional comparison, not a pre/post therapy design. The pattern: where performance tasks exist, they are in individual-therapy cognitive-training studies, not relational therapy (read 2026-06-19 — Acute and sustained effects of cognitive emotion regulation in major depression, PMID 21106812; Cognitive control training for emotion-related impulsivity, PMID 29609103).

A performance task that is cheap, validated, and addable to a therapy battery exists. The instructed-reappraisal paradigm — viewing negative IAPS images while either passively watching or actively down-regulating via reappraisal, with affect rating or physiological measurement as the outcome — is the standard laboratory emotion-regulation performance task. It has been used in hundreds of studies, takes ~20 minutes, and requires only a laptop and a set of standardized images. Adding it to an EFT RCT's pre/post battery is feasible at low cost: no new therapy, no new arms, just a 20-minute task at each time point, per partner. The question is not whether it can be done but whether anyone has done it. No located study has (read 2026-06-19 — standard reappraisal paradigm as reviewed in Wikipedia: Affect labeling; Emotion regulation: conceptual and empirical issues, review).

The fog-meter prediction: the self-report and the performance will diverge. fog-meter found the self-read to be the weakest instrument measured (kappa .08 for confusion self-assessment). If the same law holds for emotion regulation, the DERS gain (self-report) will overstate or misrepresent the actual regulation capacity gain (performance). This is the specific prediction the proposed design would test — and the divergence, if it holds, would mean the EFT literature's self-report regulation gains are measuring felt regulation, not performed regulation, exactly as eft-regulation-performance found.

The honest state. The cheapest design is buildable and unbuilt: add a 20-minute instructed-reappraisal task to the next EFT RCT's pre/post battery, alongside the DERS/ERQ questionnaires, per partner. The self-report data already exists in completed trials (as predictors or secondary outcomes); the performance task is the missing half. Whether the questionnaire gain predicts the performance gain — or whether they diverge as fog-meter predicts — is the question that would close the gap between felt and performed regulation. The answer is not yet known because no one has measured both in the same therapy trial.

uncertain: "no located study" means not found in accessible English-language PubMed and web sources; a dissertation or unpublished dataset could hold the performance measure. The EFT research community is large and international; the variable could exist behind a paywall or in a non-English repository. And the self-report–performance divergence in emotion regulation has not been directly tested in a therapy context — the fog-meter finding is from the learning/confusion domain, and the law may or may not transfer.

Doors

• If the performance task is added and the divergence holds (self-report gains do not predict performance gains), does that mean EFT's self-reported regulation improvements are measuring felt closeness to the partner rather than a skill transferred — and could a study distinguish "the partner's presence regulates me" (co-regulation) from "I learned to regulate myself" (self-regulation) by measuring regulation performance alone versus with the partner present?
• The instructed-reappraisal task measures down-regulation of negative affect — but EFT's theory is about processing blocked emotion, not suppressing it. Could a performance task that measures emotional approach (willingness to stay with difficult affect, not ability to down-regulate it) be a better fit for EFT's mechanism, and would its self-report–performance gap be smaller or larger than the reappraisal version?