11.07.2015 Views

Verteporfin photodynamic therapy for neovascular age-related ...

Verteporfin photodynamic therapy for neovascular age-related ...

Verteporfin photodynamic therapy for neovascular age-related ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

DOI: 10.3310/hta16060Health Technology Assessment 2012; Vol. 16: No. 6171respondent asks what something means, do not try to explain what the question means,but suggest that the respondent use his or her own interpretation of the question. Allrespondents should answer the questions based on what they think the questionsmean.If the respondent has trouble with the response choices , it is important to guide him/her torespond in one of the pre-set categories by saying something like: “I know that it may behard <strong>for</strong> you to think this way, but which of these categories most closely expresses whatyou are thinking or feeling?”If the respondent doesn’t like a question, or thinks it is unnecessary or inappropriate,emphasize that all questions are in the survey <strong>for</strong> a reason that is very important to thestudy. They should try to answer all of the questions.If the respondent has repeated difficulties filling out the questionnaire which you cannotaddress with the above direction, take back the questionnaire, record the difficulty, and thankthe respondent.What should I do if a respondent wants to know what his/her answers mean?If a respondent asks <strong>for</strong> interpretation of their responses or asks <strong>for</strong> their score on thequestionnaire, tell respondents that you are not trained to score or interpret thequestionnaire. Emphasize that their answers are to be kept confidential.What should I do if the respondent is concerned someone will see the answers?Emphasize that all respondents’ responses to the SF-36 are to be kept confidential. Youare not allowed to read the responses other than to check that all questions are answered.What should I do if a respondent asks why the SF-36 must be filled out more thanonce?Explain that respondents must fill out the same questionnaire at additional visits in order tosee if their answers change over time.Visual Independent Living Questionnaire:This questionnaire can be introduced with these words:“Now I would like you to answer some questions about your living circumstances, and someadditional questions about problems which involve your vision. Please choose the responsethat best describes your situation”.Please take as much time as you need to answer each question. All your answers areconfidential. In order <strong>for</strong> this survey to improve our knowledge about vision problems andhow they affect your quality of life, your answers must be as accurate as possible.© Queen’s Printer and Controller of HMSO 2012. This work was produced by Reeves et al. under the terms of a commissioning contract issued by theSecretary of State <strong>for</strong> Health.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!