Very rarely can a researcher fulﬁll all the requirements of a questionnaire in just one attempt. It is assumed that many initial drafts will be produced and modiﬁed based on the researcher’s judgment. Even after a researcher’s self-evaluation of the questionnaire, it may have some problems or errors. A pretest allows the researcher to try out the questionnaire with an external group to isolate problem areas. Pretests involve administering a questionnaire to a limited number of potential respondents to identify inherent problems and point out design ﬂaws. Pretests, if conducted scientiﬁcally, should identify ambiguity in questions, problems of redundancy, question-sequencing issues, use of incorrect or difﬁcult words, unanswerable questions, problems in skip patterns, and an estimate of the time it takes to complete a questionnaire. In international research, where the chances of making errors are greater, pretesting is of utmost importance.