PPT-Assessing Laboratory Quality – Systematic Bias

Robert O Miller Colorado State University Fort Collins CO Miller 2013 Method Performance Bias accuracy and precision is best depicted by the target bulls eye Soil Analysis Bias and Precision . So sampling bias is consistent error that arises due to the sample selection For example a survey of high school students to measure teenage use of illegal drugs will be a biased sample because it does not include home schooled students or dropouts Osamu Tajima (KEK). The QUIET Collaboration. 1. B-modes have . NOT. been observed . yet. ! . Direct limits : . r. < 0.7. (ground experiment). Indirect limits: . r. < . 0.2. Contribution from. Dr Sharon Mickan. Centre for Evidence-based Medicine . University of Oxford. Learning Objectives - overview. Review purpose of a Systematic Review. Types of systematic review. Best question for each study type. GRADE. Approach . Committee on Standards for . Systematic Reviews of Clinical Effectiveness Research. Institute of Medicine of the National Academics. October 26, 2009. Yngve Falck-Ytter, M.D.. Assistant Professor of Medicine. Overview. 1. What is laboratory certification?. “Laboratory certification is a process that provides formal recognition to the managerial and technical competence of a laboratory performing specific analyses defined by a certifying body (or environmental program)”. Why do laboratory errors occur?. Quality. Control &. Assessment. Poor. Workload . Management. Understaffed. Non-validated. Tests. Inadequate. Attention. To Detail. Time . Pressures. Poor Results . Why do laboratory errors occur?. Quality. Control &. Assessment. Poor. Workload . Management. Understaffed. Non-validated. Tests. Inadequate. Attention. To Detail. Time . Pressures. Poor Results . Dr. . A. lice H. Hall, Dr. John G. . Peden. , and Dr. Trent W. Maurer. Georgia Southern University Statesboro, GA . The Goal of This Presentation Is…. To share the findings from a three year longitudinal study designed to assess the effectiveness of training and educating . Why do laboratory errors occur?. Quality. Control &. Assessment. Poor. Workload . Management. Understaffed. Non-validated. Tests. Inadequate. Attention. To Detail. Time . Pressures. Poor Results . Critical. . appraisal of medical literature . 2010. 9. 고려대학교 의과대학. 안 형 식. What is bias?. Systematic error or deviation from the truth. may overestimate or underestimate. biased studies lead to misleading results. introduction. _. Laboratory testing can be performed on many types of fluids from the body other than blood. . Some body fluid analyses include:. Urinalysis. . Semen Analysis. . Sweat Chloride. . Fetal . Centre for Evidence-based Medicine . University of Oxford. Learning Objectives - overview. Review purpose of a Systematic Review. Types of systematic review. Best question for each study type. Process of designing a systematic review. 1. The laboratory has a Class II Biological Safety Cabinet designed with inward air flow at a velocity to protect personnel (75-100 linear feet/minute), HEPA-filtered downward vertical laminar airflow . . What do we mean by confidence in a systematic review and in an estimate of effect?. How should we assess how much confidence to place in a systematic review of health systems research?. What do we mean by confidence in a systematic review?.