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.
If you have joint pain from rheumatoid arthritis (RA), eat more fish. Fatty cold-water types like salmon and mackerel are good sources of omega-3 fatty acids. Omega-3s may help keep joints healthy, as well as lower inflammation, a cause of joint pain and tenderness in people with RA.