Did I see "Online Analysis" for this study?
For many popular ICPSR studies you have the option of using the ICPSR's SDA, or Survey Documentation and Analysis feature. Some studies also have NESSTAR online analysis.
This may be useful if you only need a few calcuations from the dataset
For any study, you will still need the documentation for the study, either opened in a window on your computer or downloaded to your file space, where you can view it as needed.
Choose "Extra codebook window" to get acquainted with this feature.
Browse the codebook to find variables that will be helpful for your analysis.
Enter the variable names online and run your calculation.