Do not test for baseline imbalances unless they are known to be present? Vance W. Berger Commentary 25 February 2009 Pages: 399 - 399
In reply to Berger “don’t test for baseline imbalances unless they are known to be present?” P. M. FayersM. T. King OriginalPaper 01 March 2009 Pages: 401 - 402
Normative data of the SF-12 health survey with validation using postmyocardial infarction patients in the Dutch population Floortje MolsAline J. PelleNina Kupper OriginalPaper Open access 26 February 2009 Pages: 403 - 414
Association of insomnia with quality of life, work productivity, and activity impairment Susan C. BolgeJustin F. DoanRobert W. Baran OriginalPaper 14 March 2009 Pages: 415 - 422
Continence specialists use of quality of life information in routine practice: a national survey of practitioners Kirstie L. HaywoodAndrew M. GarrattSuzanne M. Skevington OriginalPaper 07 March 2009 Pages: 423 - 433
Quality of life of patients with irritable bowel syndrome in Korea Jae Myung ParkMyung-Gyu ChoiIn Kyung Sung OriginalPaper 27 February 2009 Pages: 435 - 446
Having a fit: impact of number of items and distribution of data on traditional criteria for assessing IRT’s unidimensionality assumption Karon F. CookMichael A. KallenDagmar Amtmann OriginalPaper 18 March 2009 Pages: 447 - 460
Replenishing a computerized adaptive test of patient-reported daily activity functioning Stephen M. HaleyPengsheng NiLarry H. Ludlow OriginalPaper 14 March 2009 Pages: 461 - 471
Rasch analysis of 24-, 18- and 11-item versions of the Roland-Morris Disability Questionnaire Megan Davidson OriginalPaper 24 February 2009 Pages: 473 - 481
Establishing construct validity for the thyroid-specific patient reported outcome measure (ThyPRO): an initial examination Torquil WattJakob Bue BjornerUlla Feldt-Rasmussen OriginalPaper 14 March 2009 Pages: 483 - 496
Design of a questionnaire for evaluating the quality of life of postpartum women (PQOL) in China Sui-Zan ZhouXiao-Li WangYan Wang OriginalPaper Open access 25 March 2009 Pages: 497 - 508
The precision of health state valuation by members of the general public using the standard gamble Ken SteinMatthew DyerJohn Brazier OriginalPaper 03 March 2009 Pages: 509 - 518
The construct validity of the Health Utilities Index Mark 3 in assessing mental health in population health surveys David FeenyNathalie HuguetMark S. Kaplan OriginalPaper 10 March 2009 Pages: 519 - 526