Part 3 - the occasion of using dialects of English major students. The researchers have define question about the behavior of using dialects of English major students, which have 10 questions determined criteria (Rating Scale) five level of the voted.
The above questionnaire was constructed and developed gradually as follows:
3.2.1.1 The researchers studies theories from textbooks, documents, articles and related literature.
3.2.1.2 The researchers reviewed the literature on how to construct the attitudes questionnaire as defined by Likert’s method or five-point rating scales.
3.2.1.3 The researcher constructed the draft questionnaire in Thai version.
3.2.1.4 The researchers proposed the statements of questionnaire to the advisor to check the correctness and appropriateness. Then the researchers revised and edited the questionnaire statements according to the advisor’s suggestions and comments.
3.2.1.5 The revised questionnaire statements were examined by the three experts to check correctness and appropriateness, there were 5 scales as follows: (Srisa-ard.2002)