Which of the following group creativity techniques allows large numbers of ideas to be classified into groups for review and analysis?

The affinity diagram is a powerful group creativity technique specifically designed for organizing a large number of ideas into meaningful groups. This method is particularly beneficial in situations where a team has generated an extensive list of ideas or feedback, making it challenging to analyze them effectively.

By using the affinity diagram, participants can work collaboratively to sort and categorize ideas based on their relationships and similarities, which facilitates a clearer understanding and analysis of the concepts at hand. This grouping process helps highlight trends and common themes, paving the way for deeper insights and more strategic decision-making.

In contrast, other techniques, such as brainstorming, focus on generating a large quantity of ideas without necessarily organizing them into structured groups. The nominal group technique, while useful for prioritizing ideas, does not specifically emphasize classification of large numbers of ideas. Mind mapping allows for visual representation of ideas and their connections but does not provide the structured grouping aspect that the affinity diagram does. This makes the affinity diagram the best fit for the described scenario of classifying ideas for review and analysis.