PIRSConcurrent

The core hypothesis was that the insomnia severity spectrum was unidimensional and potentially separable from fatigue, depression, anxiety, excessive dozing, but implicated with disability and poor quality of life. The main instrument used for modeling the insomnia spectrum was the Pittsburgh Insomnia Rating Scale(PIRS65), having 65 items, attached. The study was of research-grade, rather pure insomnia patients, compared to healthy controls. Attached main dataset presents concurrently obtained measures. Other datasets are of processed data for the comparison between sleep logs and the corresponding item's values on the PIRS65. A separate file contains the test:retest data. The descriptive file contains lists of questionnaires and variables. Other pertinent utility files are attached. A Powerpoint file presents output from the Multilog Item Response Theory (IRT) Software as models of all the PIRS65 IRT item characteristics.