2. test the questionnaire to a sample of the 80 series. From December 19 to December 25 58 58 included all 7-day period.3. the revised questionnaire. From December 26 to December 29 58 59 total duration of 4 days.Step 3: data collection
2. The sample test questionnaire with 80 series from 58 to 19 December 25 December 58 Total duration of 7 days 3. revised questionnaire from 58 to 26 December 29 December 59 Total duration of 4 days, 3 steps. Data Collection