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Nominal Group Technique (NGT)

Nominal Group Technique (NGT). Developed by Delbecq and Van de Ven in the early 1970s Useful to define the dimensions of a decision

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Nominal Group Technique (NGT)

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  1. Nominal Group Technique (NGT) • Developed by Delbecq and Van de Ven in the early 1970s • Useful to define the dimensions of a decision • Based on research that indicates that small groups that do not interact are the most creative idea generators, while groups that do interact perform the best evaluation. • Incorporates evaluation as well as idea generation. Dr. Camille DeYong

  2. Output • Rich list of ideas. • Preliminary rating of those the group feels are most important. Dr. Camille DeYong

  3. Steps in NGT • Silent Generation • Round Robin • Discuss/Clarify • Vote/Rank • Discussion Dr. Camille DeYong

  4. Silent Generation • Task statement • 5-10 minutes (or until people run out of ideas….) • Imperative to obtain individual responses. Dr. Camille DeYong

  5. Round Robin • List responses on flip charts or board. • Each respondent offers one idea from their list and the facilitator moves on. • The ideas should be numbered as they are listed. Dr. Camille DeYong

  6. Discuss/Clarify • Go through the list one by one. • Make sure all participants understand each idea. Dr. Camille DeYong

  7. Vote/Rank • Depending on how many ideas are on the list, give each participant a set number of index cards. • Rule of thumb is 15-25% (If you have 28 ideas, give them 7 cards) • Instructions • From the list of ideas, pick your top x and write one idea on each card. Put the idea number in the top left corner. Dr. Camille DeYong

  8. Rank • Spread your cards out in front of you. • From this list, which is your top choice? • Give this a 7 – write a 7 in the top right hand corner of your card. Turn this card over. • From the cards that are remaining, which is your least favorite. • Give this a 1 – write a 1 in the top right hand corner of your card. Turn this card over. Dr. Camille DeYong

  9. Rank (cont’d) • Continue with this process – until there are no more cards left. • Everyone should have 7 cards with ideas, idea numbers, and ranking numbers. Dr. Camille DeYong

  10. Record votes • This is a good time for a break! • Collect cards; List votes by each idea. • Tally • Record using a/b where a = Number of people who voted for an idea; b = Sum of votes. Dr. Camille DeYong

  11. Interpretation • You can order the ideas according to the numerator or the denominator. • Usually 1-2 ideas dominate. • Provides powerful information about the subject of interest. • Consensus? • Divergence? • Strong opinions? Dr. Camille DeYong

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