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Open research questions in Delphi Technique in Research

99 gap statements mined from Delphi Technique in Research papers in our 4.5M-paper local library, which holds 470 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

What the literature leaves open

  • Up to now, no consensus exists on the appropriateness of PROs used across diseases, e.

    Standardizing patient-reported outcomes across diseases: development of a novel generic patient-reported outcome set · 2025 · DOI

  • Inconsistent reporting of clinical trial results hinders the comparison of findings. A core outcome set is needed to standardize the selection, reporting, and measurement of outcomes in clinical trials.

    Development of a core outcome set for traditional Chinese medicine for atrial fibrillation · 2026 · DOI

  • The absence of standardized and validated outcome measurement instruments limits consistent reporting in genital gender-affirming surgery. The lack of standardization in outcome measurement hinders comparability and evidence synthesis in genital gender-affirming surgery research.

    Outcome measurement instruments for the core outcome sets on genital gender-affirming surgery: the GenderCOS project · 2026 · DOI

  • Pregnancy complicated by rare conditions, such as vasa previa or twin-to-twin transfusion syndrome (TTTS), is characterized by a heterogeneous and context-dependent evidence base in which high-quality RCTs inform certain aspects of care, while substantial gaps in knowledge remain regarding diagnosis, patient selection, timing of intervention and real-world applicability.

    From evidence gaps to action: why Delphi consensus has become indispensable in perinatal medicine · 2026 · DOI

  • The development of a Core Outcome Set for a complex condition like oropharyngeal dysphagia. The need to engage stakeholders from diverse backgrounds and perspectives. The challenge of achieving consensus on key outcomes.

    Developing a Core Outcome Set for oropharyngeal dysphagia screening services in hospitals: a modified Delphi study · 2026 · DOI

  • The lack of a Core Outcome Set for oropharyngeal dysphagia screening services in hospitals. The need for consistent outcome measurement and evidence synthesis in OD research.

    Developing a Core Outcome Set for oropharyngeal dysphagia screening services in hospitals: a modified Delphi study · 2026 · DOI

  • The challenges include the impacts of climate change on diabetes risk and management pathways, the need for a climate-sensitive diabetes management model, and the requirement for implementation and evaluation in real-world practice. The study also faced challenges in terms of recruiting experts and achieving consensus on the model components.

    Delphi consensus validation of an integrated climate sensitive diabetes management model for climate vulnerable health systems in Iran · 2026 · DOI

  • The model requires implementation and evaluation in real-world practice, which can be a direction for future research. The study can be replicated in other climate-vulnerable settings to develop and validate similar models. The model can be refined and updated based on the results of implementation and evaluation studies.

    Delphi consensus validation of an integrated climate sensitive diabetes management model for climate vulnerable health systems in Iran · 2026 · DOI

  • Individuals with severe mental illness experience persistent and complex physical health needs. There is a lack of consensus among stakeholders regarding what constitutes best-practice organizational models for integrated care.

    Protocol for a Delphi consensus study to identify priority characteristics of integrated care for individuals with severe mental illness and comorbid physical disorders in Europe · 2026 · DOI

  • There is a lack of consensus among stakeholders regarding what constitutes best-practice organizational models for integrated care. There is a need to identify key characteristics of integrated care models that can support the sustainable implementation of these models across Europe.

    Protocol for a Delphi consensus study to identify priority characteristics of integrated care for individuals with severe mental illness and comorbid physical disorders in Europe · 2026 · DOI

  • Ensuring the standards remain current and responsive to emerging evidence. Achieving consensus among expert panel members. Addressing attrition across rounds.

    Revising the Canadian Standards of Critical Care Nursing Practice 6th Edition: Part 2 – A Modified Delphi Process · 2026 · DOI

  • Previous revisions lacked a standardized methodology. There is a need for a systematic and collaborative process to define national practice standards.

    Revising the Canadian Standards of Critical Care Nursing Practice 6th Edition: Part 2 – A Modified Delphi Process · 2026 · DOI

  • The challenges include the scarcity of high-quality clinical trial evidence and the limited experience of healthcare practitioners in Asia. The variation in healthcare policies and limited access to advanced diagnostic tools and restricted treatment options in Asia are significant challenges.

    Evidence- and opinion-based consensus from Delphi round 1 of the Asian aplastic anemia recommendation development · 2026 · DOI

  • The scarcity of high-quality clinical trial evidence limited the development of recommendations. The experts relied on their own practical clinical experiences due to the lack of evidence.

    Evidence- and opinion-based consensus from Delphi round 1 of the Asian aplastic anemia recommendation development · 2026 · DOI

  • Difficulty in establishing causality between early life exposures and respiratory morbidity, - Challenge of predicting those at highest risk of wheeze and respiratory morbidity, - Need for further research into clinical studies of pharmacological and non-pharmacological therapies

    Chronic respiratory morbidity and wheeze after preterm birth: a narrative review · 2026 · DOI

  • Lack of understanding of the pathophysiology of wheeze in preterm infants, - Inadequate diagnosis and treatment of wheeze in preterm infants, - Limited research into clinical studies of pharmacological and non-pharmacological therapies for preterm infants

    Chronic respiratory morbidity and wheeze after preterm birth: a narrative review · 2026 · DOI

  • Lack of guidance on optimal participant numbers for consensus meetings, - Limited to community-dwelling older people, - No research has specified 'how to measure' the outcomes

    Assessing Older Adults' Adherence to Appropriate Polypharmacy: Selection of Outcome Measures for Intervention Trials · 2026 · DOI

  • There is a lack of guidance on how to measure outcomes in clinical trials aiming to improve adherence to appropriate polypharmacy in older people. Previous clinical trials have shown heterogeneity in outcomes and outcome measurement instruments, leading to low-quality evidence. There is a need to specify how to measure outcomes in the core outcome set.

    Assessing Older Adults' Adherence to Appropriate Polypharmacy: Selection of Outcome Measures for Intervention Trials · 2026 · DOI

  • The additional time commitment may reduce feasibility - Technical issues with the online surveys timing-out and resulting in the work they contributed not being saved - Some steps were at times overwhelming - Small sample size (n = 21) - Limited to individuals with expertise in the mental health sector

    Supporting Staff To Address the Physical Health of Consumers in Mental Healthcare Settings: A Modified Nominal Group Technique · 2026 · DOI

  • Further research is needed to validate the findings - Investigation of the effectiveness of the modified NGT method in other contexts - Exploration of the feasibility of implementing the modified NGT method in real-world settings - Examination of the impact of the modified NGT method on physical health outcomes for mental health consumers

    Supporting Staff To Address the Physical Health of Consumers in Mental Healthcare Settings: A Modified Nominal Group Technique · 2026 · DOI

  • Logistical and systematic barriers to referral and diagnosis. The risk of misinterpretation if the intended clinical setting is not clearly specified. The need to overcome potential barriers to timely diagnosis, including increasing HCP education and institutional support.

    Assessing and investigating children with suspected soft tissue sarcomas: an e-Delphi consensus process · 2026 · DOI

  • The lack of clinical guidelines for suspected STS. The need for prompt recognition and referral of children with suspected STS. The existence of barriers to timely diagnosis, including logistical and systematic barriers.

    Assessing and investigating children with suspected soft tissue sarcomas: an e-Delphi consensus process · 2026 · DOI

  • identifying current and future trends and issues in technology education - ensuring professional development opportunities for technology educators - providing adequate resources for technology education

    Current and future trends and issues facing technology education - an international Delphi study · 2026 · DOI

  • examine the situation in different countries in more detail, - examine how different national curriculum models affect students' technological literacy, - examine how different national curriculum models affect teachers' professional identity, - examine the long-term status of technology education in schools

    Current and future trends and issues facing technology education - an international Delphi study · 2026 · DOI

  • Although qualitative methods have frequently been integrated with the Delphi technique in policy and sustainability research, its systematic application in user experience (UX) and service quality research remains underexplored.

    Applying the Delphi Method for Consensus in Service Quality User Experience Research: Lessons From a Two-phase Design Study · 2026 · DOI

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99 gap statements have been mined from Delphi Technique in Research papers in our 4.5M-paper local library, which holds 470 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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