'Information bias' presentation slideshows

651 views • 65 slides

Epidemiologic Data Analysis and Validity

Epidemiologic Data Analysis and Validity. Joel Mefford meffordj@humgen.ucsf.edu. 01/27/2012. Data Analysis and Validity. Validity in Epidemiologic Studies Validity of Estimation Confounding Selection Bias Information Bias Generalizability Data Analysis Data Editing

707 views • 55 slides

Biases

Biases. Presenter: Dr Himani Moderator: Dr P.R.Deshmukh. Framework. Introduction Terms to understand Types of bias Selection bias and types of selection bias Information bias and types of information bias How to control bias Biases specific for case control study

598 views • 48 slides

Analysis and presentation of Case-control study data

Analysis and presentation of Case-control study data. Chihaya Koriyama February 14 (Lecture 1). Study design in epidemiology. Why case-control study?.

889 views • 47 slides

Bias can get by us

Bias can get by us. November 2 2004 Epidemiology 511 W. A. Kukull. Bias. Systematic error that leads to incorrect estimate of an association anticipate and eliminate or minimize in the study design phase may be impossible to account for in analysis

454 views • 42 slides

Cognitive Biases

Cognitive Biases . Sunil Gupta January 2011. Cognitive Bias. A cognitive bias is a pattern of poor judgment, often triggered by a particular situation. The existence of most of the particular cognitive biases listed has been verified in psychology experiments. . Why they exist.

527 views • 35 slides

Sources of error: Information bias

Principles of Epidemiology for Public Health (EPID600). Sources of error: Information bias. Victor J. Schoenbach, PhD home page Department of Epidemiology Gillings School of Global Public Health University of North Carolina at Chapel Hill www.unc.edu/epid600/. Abort, Retry, Fail.

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Lecture 7

Lecture 7. Objective 18. Describe the elements of design of observational studies: case?control studies (retrospective studies). Discuss the advantages and disadvantages of this design. Retrospective Case Control Studies.

529 views • 30 slides

Potential Errors In Epidemiologic Studies

Potential Errors In Epidemiologic Studies. Bias. III. Dr. Sherine Shawky. Learning Objectives. Understand the concept of bias Recognize the methods to prevent bias Know the methods to evaluate the impact of bias. Performance Objectives. Prevent bias Evaluate bias Improve validity.

307 views • 29 slides

Experimental Studies

Experimental Studies. Dr Amna Rehana Siddiqui Dr Abdul Aziz Bin Saeed. Objectives. At the end of session students will be able to 1. Explain the design of a Randomized Trial. 2. Justify the methodological issues for, Randomization of intervention & comparison group

297 views • 28 slides

BIAS AND CONFOUNDING

1.16k views • 27 slides

Case-control study

Case-control study. Chihaya Koriyama August 17 (Lecture 1). Study design in epidemiology. Why case-control study?. In a cohort study , you need a large number of the subjects to obtain a sufficient number of case, especially if you are interested in a rare disease.

571 views • 26 slides

Epidemiology Kept Simple

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Epidemiology Kept Simple

363 views • 25 slides

Case-control study

626 views • 22 slides

KINE 4565: The epidemiology of injury prevention

KINE 4565: The epidemiology of injury prevention. Randomized controlled trials. Overview. Guidelines for student presentations Study design: randomized controlled trials Two examples from the literature. Student presentations.

373 views • 22 slides

Bias, Confounding and the Role of Chance

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Ch 15 Bias, Confounding, and Interaction

406 views • 14 slides

Two General Approaches to Finding Value

Two General Approaches to Finding Value. Technical Analysis Price and volume only Fundamental Analysis Financial statements P/E ratios, cash on hand, dividends. Efficient Markets Hypothesis: 3 Versions. Weak: Prices reflect all past publicly available information .

109 views • 5 slides