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Article Index Frequently Asked Questions Page 2 Page 3 Page 4 Page 5 Page 6 All Pages Page 1 of 6 " Can I modify a questionnaire to adapt it to my needs ? " " Has the translation been validated ? " " Is this questionnaire reliable and valid ? " " I would like to use a questionnaire in an international study, what should I do ?" " What  is the cost for using a questionnaire in my study"    Prev - Next >>