Example: biology
Selection Bias - UNC Gillings School of Global Public Health
Selection Bias E R I C N O T E B O O K S E R I E S Selection bias is a distortion in a measure of association (such as a risk ratio) due to a sample selection that does not accurately reflect the target population. Selection bias can occur when investigators use improper procedures for selecting a sample population, but it can also
Tags:
Information
Domain:
Source:
Link to this page:
Documents from same domain
Curriculum Vitae Nigel Stuart, MBA, BS(Civ Eng)
sph.unc.eduPage Teaching Experience Project Management Software – Oracle Primavera Unifier and P6: Administrator, User and Developer training provided to multiple clients. Training sessions conducted on monthly basis over 15 year timeframe.
National Strategy and Action Plan
sph.unc.eduNational Strategy and Action Plan for Environmental Health United ArAb emirAtes 2010. H.E. Majid Al Mansouri, Secretary General, Environment Agency—Abu Dhabi ... component of the larger National Environ-ment Health Project, which aims to identify and prevent environment-related threats to
NUTRITION 642: Medical Nutrition Therapy: Acute Care FALL ...
sph.unc.eduNUTRITION 642: Medical Nutrition Therapy: Acute Care FALL 2014 ... CLINICAL NUTRITION PRACTICE DURING SUMMER, MUST RECEIVE A GRADE OF P OR BETTER IN NUTR 642 IN ORDER TO ENROLL. VII. ... 3. Simmons and Assell Acid-Base Basics, Support Line, 23(1), pg. 6-11, 2001 4. Whitmire SJ: Nutrition-Focused Evaluation and Management of Dynatremias ...
Randomized Controlled Trials (Experimental Studies)
sph.unc.eduA placebo-controlled randomized trial might compare the effect of vitamin E supplement in one group of schizophrenia patients (the treatment group) against the effects of a placebo on a separate group of schizophrenia patients (the control group). An active-controlled randomized trial might compare diabetic patients with
Confounding Bias, Part II and Effect Measure Modification
sph.unc.edu-control studies or the exposed group for cohort studies). Matching can be viewed as imposing a "partial restriction" on the values of the confounding variables, since only the control or unexposed group is restricted. Analysis of matched data requires special consideration, because the control, or unexposed, group is not a random
How would you define diversity?
sph.unc.edu-gender -race -religious + political ideologies Participation of persons/interaction between people who are different according to social constructs (such as race, ethnicity, religion, sexuality, gender, education level, etc.). Diversity should encompass various backgrounds and perspectives including: ethnicity, race, geography,
Activity: Food Labels and Serving Sizes
sph.unc.eduIn this activity, participants will learn about recommended serving sizes and nutritional benefits for some of their favorite foods. Learning Objectives . By the end of the activity, participants will be able to: • Read Nutrition Facts labels to understand the properties of that food. • Determine the recommended serving of a food item.
Case Control Studies - UNC Gillings School of Global ...
sph.unc.eduCase-Control Studies E R I C N O T E B O O K S E R I E S Case-control studies are used to determine if there is an association between an exposure and a specific health outcome. These studies proceed from effect (e.g. health outcome, condition, disease) to cause (exposure). Case-control studies assess whether exposure is
Cross sectional Studies - UNC Gillings School of Global ...
sph.unc.eduThe denominators for both ratios are fixed populations – fixed at the start of the study in the case of a cohort study, and fixed at the point or period of ... time (unlike cohort studies or clinical trials). Antecedent-consequent bias does not affect cohort studies because
Incident vs. Prevalent Cases and Measures of Occurrence
sph.unc.eduhealth outcome in a population. However, unlike prevalence, risk is the proportion of an at-risk population that develops a specific health outcome within a specified amount of time. The numerator for risk is incident cases, and the denominator includes only those at-risk of developing the outcome of interest at the beginning of study follow-up.
Related documents
Engineering Economics - MIT OpenCourseWare
ocw.mit.edu•If the investor’s discount rate is 8%, what is the max they should pay today? Engineering Economic Analysis: Slide 19 3.080 Econ & Enviro Issues In Materials Selection Massachusetts Institute of Technology Randolph Kirchain Department of Materials Science & Engineering Massachusetts Institute of Technology
THE DEFINITION AND SELECTION OF KEY COMPETENCIES
www.oecd.orgstretch well beyond an individual’s local or national community. Common values as an anchor Insofar as competencies are needed to help accomplish collective goals, the selection of key competencies needs to some extent to be informed by an understanding of shared values. The competency framework is thus anchored in such values at a general level.
Construction Contractor Selection Criteria
www.mccormickpcs.comConstruction Contractor Selection Criteria Prepared by: Michael McCormick, Management Consultant – October 2010 Page 1 www.mccormickpcs.com This is easier to say than to do. Every client needing to build or renovate is faced with trying to assemble the best design and construction team. They usually hire the design team first and do
Pump Selection Guide
brownbros.com.auPump Selection Guide. Residential & Commercial Water. Lowara. Renowned innovative hydraulic design. Lowara is focused on producing high quality, reliable, cost-effective pumping . systems, maximizing efficiency in order to satisfy customers’ needs at best. Lowara pumps are made in fabricated stainless steel, which keeps the water . from ...
The Selection of a Research Approach
www.sagepub.comThe selection of a research approach is also based on the nature of the research problem or issue being addressed, the researchers’ personal experiences, and the audiences for the study. Thus, in this book, research approaches, research designs, and research
Strut Length Selection
www.strutspecialists.com.auStrut Length Selection Some of Our Standard Sizes Stroke Length (mm) 60 195 Extended Length (mm) 160 405 210 500 260 605 300 700 360 795 We produce Gas Struts in four different diameters Shaft size Tube size 6mm 8mm 10mm 14mm 15mm 18mm 21mm 28mm To calculate the size and the force of the Gas Strut you require for your application use the ...
The Applicant’s Manual
careers.un.orgUnited Nations April 2012 (Release 2.2) 2012 The Applicant’s Manual Manual for the Applicant on the Staff Selection System (inspira) careersUnited Nations
Selection Guide Fuse Characteristics, Terms and ...
www.littelfuse.comfuse’s nominal melting I2t rating must also meet the inrush current requirements created by the input capacitor of the power supply’s smoothing filter. The procedure for converting various waveforms into I2t circuit demand is given in the FUSE SELECTION CHECKLIST. …
Reference Checking Guide - OPM.gov
www.opm.govcandidate(s). For purposes of this guide, a “reference” is a person (e.g., supervisor, coworker, professor) whom the hiring manager or human resources (HR) specialist can talk with regarding the candidate’s past performance. 1 For additional information, please see Reference Checking in Federal Hiring: Making the Call, U.S. Merit Systems