Month: July 2014

When it comes time to recruit participants, there are 2 main goals: That a representative sample is chosen That a sufficient sample size is selected Just because someone has been selected does not mean that he/she will be willing or able to participate. This is the problem of nonresponse. There is no problem if the people ...

A recent study investigated whether the presence vs. absence of a medical explanation for pain in another person would impact  observer estimates of pain, sympathy and their inclination to help. They also looked at whether behavior expressions of pain would influence the relationship between absence vs presence of medical evidence. Participants watched videos of 4 back ...

A recent study randomly assigned male and female chronic neck pain patients to receive either weekly 90-min  lyengar yoga classes or to a self-care/exercise program, for a period of 9 weeks. Lyengar yoga is notable for its use of supportive props (belts, blankets, chairs) and its precision regarding specific poses and therefore is can be ...

Using data collected from 20, 214 individuals aged 18 years of age and older, researchers at Johns Hopkins University found that 10% experienced moderate pain, 11% severe pain, 33% had joint pain, 25% had arthritis and 12% had functional disability. They found that the total costs ranged from $560 to $635 billion. The additional health ...