作者: Paula Cardinal , Maria Clara Zamora , Edgar Chambers , Ángel Carbonell Barrachina , Guillermo Hough
DOI: 10.1111/JOSS.12158
关键词: Geography 、 Food science 、 Agricultural science 、 Sampling (statistics)
摘要: … questionnaire will normally include several usage frequency categories, in order to eliminate those consumers that only use the product so rarely that they are really not in the target …