Questionnaire segmentation design method

The invention discloses a questionnaire segmentation design method, which comprises the steps of S1, calculating correlation coefficients of variables in a long questionnaire, and clustering the variables into different data items by clustering the correlation coefficients; S2, segmenting the questionnaire based on the questionnaire segmentation mode, the data items obtained by clustering and thequestionnaire duration to obtain each questionnaire mode; S3, calculating the optimal sample size of each questionnaire mode based on the constraint that the fixed cost precision is the highest or thefixed precision cost is the lowest; S4, randomly issuing questionnaires based on the optimal sample size, and collecting survey data; S5, processing the survey data to obtain processed data; and S6,performing data research based on the processed data, and writing a report. According to the questionnaire segmentation design method provided by the invention, the project answering rate and the dataquality can be improved. 本发