การศึกษาความจริงใจในการตอบแบบสอบถามที่ส่งทางไปรษณีย์โดยใช้มาตรวัดความเท็จ / เกื้อ กระแสโสม = A study of sincerity of responses in mailed questionnaires using Lie scale / Guah Grasaresom
The purpose of this study was to study the sincerity of responses in mailed questionnaires using Lie Scale. The samples were 817 teachers from public secondary schools under the jurisdiction of the Department of General Education, Ministry of Education in Bangkok Metropolis. Four hundred and four teachers were pre-deadline respondent group and the rest of 413 were post-deadline respondent group. Self-Esteem inventory with parallel items and Lie Scale was used as the instrument. The obtained data were analyzed by means of percentage, arithmatic mean, standard deviation, Pearson product moment correlation coefficient and t-test. The major findings were as follows: 1. The samples had the sincerity of responses in mailed questionnaires using Lie Scale with the moderate mean score of sincerity, 60.57 percents of total score. A little variation of sincerity scores was found. 2. The sincerity scores using Lie scale had positive correlation with the sincerity scores using parallel items. 3. There were no differences of sincerity mean scores using Lie Scale between pre-deadline respondent group and post-deadline respondent group.
