These measures were chosen since they are both derived from theory and relatively short and are thus suitable for questionnaire-based population surveys [ 13].
This method is particularly suitable for ordinal questionnaire data as in the present study, and theoretically superior to several of the methods commonly used.
After the removal of similar items, 13 were considered suitable for the questionnaire pool.
We also use the term 'statements' to refer to the ideas generated by participants in the concept mapping groups, and use the term 'items' when we have begun to redraft these statements into a form that is suitable for a questionnaire.
However, because of a large number of questions, most scales were not suitable for epidemiological questionnaires.
Due to inadequate number of patients suitable for QLQ LMC21 questionnaire and the Tamil version of all three questionnaires, we decided to remove them from our study.
An item was judged suitable for the MSF questionnaire if at least 60percentt of the raters (peers, co-workers or patients) responded to the item.
The study objectives were to develop and validate two novel instruments for self-reported knee malalignment and foot rotation suitable for use in questionnaire studies of knee pain and osteoarthritis.
However, simple line-drawings, suitable for self-reported questionnaires, have been used successfully for self-reporting of bodily pain location [ 10] and for self-reported assessment of physical characteristics such as hallux valgus [ 11] and self-reported Heberden's and Bouchard's nodes [ 12].
The present study is a part of a project aiming to develop and validate a disease-specific questionnaire suitable for different forms of arrhythmias, the Arrhythmia-Specific questionnaire in Tachycardia and Arrhythmias (ASTA).
The short time required makes the questionnaire suitable for everyday clinical use, being no greater than that of other questionnaires in common use, such as the SF-36 Health Survey.
