Percentage of correct responses. Desired range on exam 0.3-0.8 (30% to 80% correct) Mean p value translates to mean % score on exam. Very difficult items (less than 30% correct) or very easy items (more than 80% correct) contribute very little. to the overall exam reliability.
Omega-3s, commonly called fish oil because of their primary source, have been shown to lessen the intensity of joint pain and stiffness in rheumatoid arthritis and neck and back pain, as well as pain caused by inflammatory bowel disease and menstrual cramps.
Fish oil supplements are available as capsules or oils. 1  Clinical trials on RA have found that fish oil supplements may help to relieve tender joints and morning stiffness. 2  Studies have also found that fish oil may reduce the need for NSAIDs and other conventional RA medicines.