The following points are considered while framing a schedule/questionnaire.

• Questions should be simple and easy to understand to get spontaneous answers. 
• Questions should not confuse the reader and they should give one and only one meaning 
• The number of questions should be kept minimum 
• If possible the questions should be capable of getting a definite answers, with either yes or no, a number , a place or a date etc.,
•  Questions should be capable of tabulating 
• The questions should be such that the least intelligent and a educated can answer them with least trouble 
• The questions should be arranged in logical order 
• The questions which hurt the feelings of the informant and which are of personal and confidential nature should be avoided 
• A far as possible the questions put should be corroborator at least on the point of importance 0 The questions should pretested in a small group of individuals before it is used 
• Questionnaire should look attractive.
• If possible a covering letter is attached along with the questionnaire.