1 / 34

Before-After Studies Part I

Types of studiesNa

ping
Download Presentation

Before-After Studies Part I

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Before-After Studies Part I Fall 2010

    2. Types of studies Naďve before-after studies Before-after studies with control group Empirical Bayes approach (control group) Full Bayes Important Issues Selection bias Regression-to-the-mean Non-linear relationship between crashes and traffic flow BEFORE-AFTER STUDIES

More Related