Delphi method and nominal group technique in family planning and reproductive health research

The Delphi Technique and Nominal Group Technique are two well-recognized consensus-formation methodologies specifically designed to combine judgments from a group of experts. The Delphi Technique utilizes a series of well-defined questionnaire-based surveys, whereas Nominal Group Technique is a structured face-to-face meeting designed to facilitate consensus. Consensus-formation techniques require that each step build on the results of the previous steps. In this review, we describe these techniques, how they work, and their practical application in pediatric rheumatology, where they have been widely used to develop the outcome measures of several chronic rheumatic diseases, including juvenile idiopathic arthritis, rheumatoid arthritis, systemic lupus erythematosus, and idiopathic inflammatory myopathies, as well as the classification criteria for juvenile systemic sclerosis and juvenile vasculitides.

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“…The DT has been used widely in pediatric rheumatology (as discussed in later examples) and other medical specialties [6][7][8].…”

Section: The Delphi Techniquementioning

confidence: 99%

Consensus procedures and their role in pediatric rheumatology

Ruperto

Meiorin²,

Iusan³

et al. 2008

Curr Rheumatol Rep

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“…However, it may be temping for expert facilitators to interject their own opinions, which would bias the findings. The validity (Van Teijlengen et al, 2006) and reliably (Vella et al, 2000) of NGT has been demonstrated. NGT is an effective technique for an exploratory study.…”

Section: Advantages and Limitations Of Ngtmentioning

confidence: 99%

Psychographic segmentation of the self-employed: An exploratory study

Kenney¹,

Weinstein²

2010

New England Journal of Entrepreneurship

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Although it is well established in the academic literature that entrepreneurs share common traits, there has been limited research dedicated to evaluating psychographic profiles of the self-employed. Using the Nominal Group Technique, the authors gleaned insight from a panel of experts in an effort to segment the self-employed based on personality traits and the benefits they receive from an entrepreneurial career. The findings show that self-employed individuals can be classified into four distinct segments: Exemplars, Generals, Moms and Dads, and Altruists. Each group derives different benefits from self-employment. Understanding these benefits can greatly assist entrepreneurship educators and marketers of small business oriented products and services.

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“…As in focus groups, the results of the NGT cannot be generalized to a wider population due to the limited number of participants. Notwithstanding the possibility to test the results of a NGT by using a survey with a representative sample, the initial selection of the NG participants is a key factor and is open to bias due to the specific characteristics of the participants, both in terms of who is selected to attend (a possible selection bias), and who agrees to participate (a potential response bias) (van Teijlingen et al, 2006). In research with professionals aimed at consensus, the level of expertise is crucial to its success and the validity of the data it generates (Harvey & Holmes, 2012).…”

Section: Weaknesses Of Ngtmentioning

confidence: 99%

“…The starting question in itself is a critical and potentially weak element. NGT's discussion stages do not guarantee anonymity, which may limit participants' willingness to express their views, especially on more controversial issues (Fein et al 1997;Van Teijlingen et al 2006). Even structured group processes may be influenced by powerful social dynamics, especially in adolescent populations (Ramirez et al, 2000).…”

Section: Weaknesses Of Ngtmentioning

confidence: 99%