Causality Lab - Exercises
	Exercises Causality Lab exercises are just text files. To open an exercise, first open the lab and then, from the file menu : select 'Open exercise' : and then browse to find the exercise file you wish to open. To sample the exercises below, right-click on them, and click "Save Target as..." to download them to your computer, and then open them with the lab. The lab has an authoring feature, which allows you to make and edit exercises. From the lab File menu, select, 'Make new exercise' and then follow the wizard which steps you through the authoring process. Download Exercises here: The Symmetry of Prediction in Observational Studies earrings1 opera1 tv1_new The Asymmetry of Prediction in Experimental Studies earrings2 tv2_new Bias from ommitted variables The Problem lead1_new lead2_new Strategy 1: Experimental Control lead1a_new lead2a_new Strategy 2: Statistical Control lead1b_new lead2b_new The Causality Lab was developed with the generous support of the James S. McDonnell Foundation and the Andrew W. Mellon Foundation.