The most satisfactory method of collecting data concerning speech habits demands that a trained fieldworker conduct personal interviews with representative informants. Since, however, the time and money required for carrying out such interviews are seldom available, the investigator must often turn to less satisfactory but more practicable methods; one of these is the multiple-choice questionnaire of the type used to gather the information for this limited survey of Ontario speech habits. The fundamental weakness of the circulated questionnaire is self-evident: the informant must substitute for the trained field worker and observe his own usage. His success in making reliable observations will depend on his native intelligence and level of education, his understanding of the significance of the survey, and his conscientiousness with regard to answering the questions.
Use of a multiple choice questionnaire to assess UK prescribing channels’ knowledge of helminthology and best practice surrounding anthelmintic use in livestock and horses