This section will describe the steps required to set up a Parameter Study. We will use the project closed_homogeneous__transient.ckprj from the samples<release_number> directory to illustrate the various options that are available for setting up a Parameter Study. These instructions assume that you are already familiar with the Pre-processing and Reactor Properties panels described in Open a Sample Project File in the Chemkin Getting Started Guide. The sub-sections Opening a Parameter Study Dialog for Chemistry Properties—Opening a Parameter Study Dialog for Species-specific Properties below describe how to get to the parameter-variation dialog from the interface for different types of input parameters. Setting up a Single Parameter Variation then describes how to fill in the parameter variation desired for the selected input, once in the parameter-study dialog.