Download the YVSP Strategy Lab Version 2.00

The YVSP Strategy Lab is an interactive computer simulation model that captures key interdependencies that underwrite violence among youth in Boston. It is driven by the interaction of five main components: slippery slope dynamics, high-risk interactions, community trauma, affinity for violence, and youth violence. The Model’s strength lies in the process by which it was created. In order to understand the dynamics of youth violence, we engaged those most affected by it: youth, community representatives, and former and active gang members. In the spring of 2010, YVSP began building a community of users by hosting trainings and distributing the Model.

Now, The Strategy Lab Version 2.00 has been released and is being offered as a FREE download here!
The Model is a powerful collaborative tool, but its usefulness depends upon the user’s familiarity with its underlying concepts, framework, and functions. We strongly recommend that everyone who uses the Model attend one of our training sessions. For information about upcoming sessions, email Jin Min Lee at You can learn more about the Model and the continuing development process by taking a look at the YVSP Special Edition Review or watching some of these videos.
Downloading the Model
To download the Model, there are three steps:
  1. Download the isee Player. The Model requires the isee player to run. It can be downloaded for free from isee Systems. You will be asked to enter your name and an email address. isee will immediately email you a password that can be used to sign in and download the software. Choose version 9.1.4.
  2. Download a copy of the Model itself by choosing the appropriate version in the right sidebar.  Choose "Save File," and select a location on your Hard Drive to store it.  If the YVSP Lab Installer does not open automatically, you may need to open it manually by going to the location in which you saved the file.  If you have difficulty with Norton's virus protection software, follow these steps: 1. When Norton alerts you that it stopped a potential threat, select "View Details." 2. From that menu, select "Options." 3. Next, select the YVSP Lab  Installer and choose "Restore Files."  4. Finally, re-open the YVSP Lab Installer, and follow directions.
  3. After the Model and the isee Player are on your computer, you should be able to run the Strategy Lab simply by opening "YVSP_Lap_2-0." If it asks you what program to use to open the file, select “Browse” and then select “iseeRuntime.exe,” which you just downloaded. 
Depending on your computer's security system, you may need to approve the YVSP Lab Installer.  If you have any questions about downloading and running the model, please email YVSP at

Download the Model

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