it is widely believed that pain has a profound effect on health related quality of life. this study was conducted to assess quality of life in patients suffering from different density of chronic low back pain. the sample consisted of 101 patients with chronic low back pain attending to the rheumatology research center of tehran university of medical sciences between july and september 2003. al...

Editorial V.15N.36

Generalizability (G) theory is a statistical theory for evaluating the dependability (or reliability) of behavioral measurements (Cronbach, Gleser, Nanda, & Rajaratnam, 1972; see also Brennan, 2001; Shavelson & Webb, 1991). G theory permits the researcher to address such questions as: Is the sampling of tasks or judges the major source of measurement error? Can I improve the reliability of the ...

Ogilvie syndrome, or acute colonic pseudo-obstruction, is a severe distension of the colon caused by decreased large bowel motility in the absence of a mechanical obstruction. It can be a consequence of medical treatment such as with clozapine. An 82-year-old male with Alzheimer disease under treatment with antipsychotics (clozapine) was admitted with abdominal distension and constipation. On e...