What Does an Investigative Specialist Do?

Expert survey method is also called "Delphi method". A survey method that seeks the opinions and opinions of an expert or authority on a topic or issue. The target of such surveys is limited to the expert level. The survey was conducted in multiple rounds. Usually 3-5 times. Each time, the respondents were asked to answer questionnaires that were basically the same, and asked them to briefly state the reasons and reasons for their views. The results of each round of surveys are collated and published to all respondents in the next round of surveys so that they can understand the opinions of other experts, and the similarities and differences between their own views and those of most experts. This survey method was first used in technology development forecasting, and has now been widely used in the study of many fields such as politics, economy, culture and social development. ^[1]

Expert survey

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Expert survey method is also called "Delphi method". A survey method that seeks the opinions and opinions of an expert or authority on a topic or issue. The target of such surveys is limited to the expert level. The survey was conducted in multiple rounds. Usually 3-5 times. Each time, the respondents were asked to answer questionnaires that were basically the same, and asked them to briefly state the reasons and reasons for their views. The results of each round of surveys are collated and published to all respondents in the next round of surveys so that they can understand the opinions of other experts, and the similarities and differences between their own views and those of most experts. This survey method was first used in technology development forecasting, and has now been widely used in the study of many fields such as politics, economy, culture and social development. ^[1]

Expert;

expert investigation method; expert investigation approach; the method of expert investigation; delphi method;

The expert survey method is divided into Delphi method and brainstorming method. Delphi method is also translated as Delphi method. Delphi is the seat of the Temple of Apollo in ancient Greek legends.The American Land Company first used the Delphi method in 1964.

Expert survey method is widely used. For many years, information research institutions have adopted expert personal survey method and conference survey to complete many information research reports.

Including: determine the host, organize a special group. Draw up a survey outline. Questions should be clear and specific, properly selected, not too many, and provide necessary background materials. Select

The characteristics of expert investigation method are: correspondence inquiry. Using communication methods to repeatedly seek expert opinions, investigators and

In the following three typical situations, the use of expert knowledge and experience is effective and the only survey method that can be used.

Lack of data: Data is the basis of various quantitative studies. However, sometimes the data is insufficient, or the data does not reflect the real situation, or the time taken to collect the data is too long, or the price paid is too high, so the quantitative method cannot be adopted.

New technology evaluation: For some brand-new science and technology, in the absence of or lack of data, expert judgment is often the only basis for evaluation.

Non-technical factors play a major role: When decision-making issues exceed the technical and economic scope and involve ecological environment, public opinion and even political factors, these non-technical factors often have more importance than the development factors of technology itself. Therefore, past data and Technical factors are of secondary importance, in which case only expert judgment can be used.

In addition, due to the huge amount of original information, the relevant factors involved in decision-making (technical, political, economic, environmental, psychological, cultural traditions, etc.) are too many, and the computer processes such a large amount of information at a high cost. At this time, considering the cost effect, an expert survey method should also be adopted.