Minimally Invasive Surgery General surgery: biliary surgery
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چکیده
draw the interviewers' attention to the problems. If you cannot identify any, look again: you have simply missed them. At least one of the questions will tum out to be hopeless despite steps 1 to 8; this is par for the course and not worth losing sleep over. Take pains to achieve a high response rate, especially in postal surveys. If the response rate is poor and you are confident that your questionnaire is not to blame send out a reminder along with a second and even a third copy of the form. Avoid haranguing non-respondents but emphasise to them how important their cooperation is to the success of your extraordinarily important study. Flattery works. (10) Start again-Good research is usually the result of learning from mistakes. If time and resources (as well as personal motivation) permit replicate your study at least once. This will allow you to perform validation, to increase the sample size, and to fine tune your questionnaire to the point where you can be proud of it. You now know about as much theory as you need to get you started on your survey. For those with the time and inclination, more detailed advice on questionnaire design can be found in good medical libraries.67 Some aspects of the subject may appear highly technical and complicated to the point where you may be deterred from going further. As there is no substitute for experience, however, take a deep breath and jump. The landing will not be as hard as you fear.
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