1) No predetermined questions–questions arise spontaneously as the conversation unfolds
2) Writing an IDI report is quite different from a quantitative report
D. Using the Delphi Method
The Delphi Method is used to inject creativity into new product development. The Greek city of
Delphi was home to the Oracle of Pythia, a woman believed to offer great insight into the future.
The Delphi Method relies on people who are experts in some area (e.g., product development
researchers, marketing managers, MDs, engineers, magazine editors, executives, priests). In the
classical Delphi procedure, the first round is unstructured, in order to allow individual experts
relative freedom to identify and elaborate the pertinent issues from their point of view. These
issues are then consolidated into a structured questionnaire.
This questionnaire is subsequently used to elicit the opinions and judgments of the panel of
The key characteristics of Delphi are anonymity, iteration, feedback, and aggregation of group
responses. The purpose of anonymity is to exclude group interaction, which can cause a number
of problems, such as group conflict and individual dominance. Controlled feedback is presented
back to the panel of experts at the start of the next round. The form of the feedback varies
depending on the topic and, may involve quantitative summaries or the creation of scenarios,
e.g., “How can we create a better customer relationship management (CRM) software that will
enable us to take market share from the two market leaders?”
II. Projective Tests
A. Projective Tests–used to delve below surface response to obtain true feelings, meanings, and
motivations by penetrating a person’s defense mechanisms. They are easy to administer and
often used with open- and closed-ended questions
1) Word association tests–interviewer says a word and the respondent must mention the first