In my study I used the questionnaire "Physical Self Perception Profile 25" (Fox and Corbin) on alcoholic patients. I would like to know wether the socres are similar to healthy adults and/or people with alcohol problems; Any references? What values are considered high/low/normal?
Research does not need cut off scores. You have to compare your results with a control group of non-alcoholics. If you are not able to come up with a control group you can compute the mean for your group and then you can study those below your mean (e.g. - 2 SD) and above (+ 2 SD) your mean. To make it simple, you can divide your groups in 3 part (33% of your participants in ecah group) and compute the difference between the highest and lowest thirds. To get the idea you can read my papers abour hysterectomy and vasectomy where depression, anxiety and so on are assessed.
Dear Alexandra, these are considerations you should have done before you started your study. One possibility would be to look for a control group and to examine them with the questionnaire. Or you will look for papers in which the PSPP was used and the results for certain patient groups are reported.
Find attached a pdf with a short cv of Professor Ken Fox the author of the PSPP. You find his email in the cv and you can directly ask him whether he would provide you with some infomation/ data you are looking for. Good look fur your further work.
http://www.bristol.ac.uk/sps/people/ken-r-fox/index.html
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