Steps in Developing a Questionnaire or  Interview  Schedule:

a)  Preliminary Decisions: 

• Decide  on  the form that the schedule will take  e.g. structured, unstructured,semi-structured. 
• Decide on  type of  information that needs  to be collected. 
• List and operationally define the variables. Develop pattern of  coding and  recording.

b)  Drafting the Schedule: 

• Wording of each question needs  to be carefully monitored. 
• Decide how  to sequence the questions. 

c)  Revising and Pretesting: 

• Draft of the  instrument should be critically discussed by  experts both who are  knowledgeable about the topic under study as well  as those who are capable of detecting technical difficulties to develop content validity. 
• A  pretest of an  instrument is a trial  run  to determine, in so far as possible, its  clarity, reaearch adequacy and freedom from bias. Pretest should be administered to individuals who are similar in  attributes to those who will participate  in  actual study. 
• A pretest does not  obtain information on  the  reliability of  the  responses of the questions asked.