PPT-Laboratory v. field experiments

The tradeoff between internal and external validity Natural sciences In natural sciences most experiments have been undertaken in carefully controlled laboratory conditions Seeking laws of physics etc. Gary Simpson. University of the West of Scotland. Fast-timing from below isomers ion-. g-g. Use selectivity of spectrometer + isomer decay. Know what isomer is. . 1. . 2. T. 1/2. . start. stop. Listening . to the Customers, not to the . HiPPO. Ronny Kohavi, . General Manager. Experimentation Platform, Microsoft. ronnyk@microsoft.com. . The Analytics . Revolution, Apr 2010. , . SDForum. 2. Amazon . . True Experiments. Characteristics. Threats to validity controlled by experiments. Threats not controlled by experiments. Obstacles to true experiments in the field. . Quasi-experiments. The logic of quasi-experiments . Department of Sociology. Indiana University. Laboratory Experiments in the Social Sciences:. An Introduction. A sample question. What is an experiment?. Basics of experimental design. What can we learn from experiments?. Unconscious Behavior. Criteria: . Real problem. Relevant to food (health). Actionable. Best method. Best journal. Method: . Pediatrician office flu/cold patients. 2x2: . teasp. vs. . tblsp. ; kid vs. no kid. Research Objective. Show direct cause & effect. Study relationships among variables for existing groups. Explain outcomes after the fact. Type of Design. True Experiment. Quasi-Experiment. Cross-Sectional. Ronny Kohavi, . GM, Experimentation Platform, Microsoft. Slides available at . http://exp-platform.com. Part 1. 2. Amazon . Shopping Cart . Recs. Add an item to your shopping cart at a website. Most sites show the cart. PPAP Meeting. Birmingham. 15 July 2009. Elisabeth Falk. University of Sussex. Def. current: running or under construction. Outline. Neutrino-oscillation experiments:. what to measure, and how. Accelerator-based experiments. By. Ajinkya. . Thorve. Introduction. Advancement of tracking technologies has lead to increased data collection.. Collected data used, sold and resold for serving targeted advertisements.. Serious privacy concern!. RELATED TO NUCLEAR DATA. FOR FAST REACTOR APLICATIONS. DEN/CAD/DER/SPRC/. LEPh. . |. . Pierre Leconte. , David Bernard. , Cyrille de Saint Jean. DEN/. CAD/. DER/. SPEx. /LPE . |. Patrick Blaise, Benoit . 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)”. Overview. Causal effects. Debates to be considered. Experimental vs. non-experimental. Field vs. laboratory experiments. Structural vs. reduced form. Key dimensions of the debate. Generalizability. Control and feasibility. . OF THE EVIDENCE-BASED MEDICINE.. THE BIOETHICAL COMITTEES.. Ethical. . e. xperiments . on . humans. . are absolutely necessary . for the progress of medicine. . Definitions. Research . . Xiaomei. Zhang. IHEP Computing . Center. Outline. Overview of IHEP experiments. General Challenges . Challenges and practice of software. JUNO Neutrino experiment . Status and challenges of computing.