As of 2015, some resources that offer free SSAT practice tests include SSATPrep.com and VarsityTutors.com. These websites offer a number of practice tests and instant results.
At SSATPrep.com, students find practice tests for the SSAT for middle level and upper level tests. Each of the practice tests needs to be downloaded before practicing. Students choose a section, see how long the test is and the number of questions in the section.
VarsityTutors.com offers a practice test for the upper level verbal test. These tests are broken down by subject within the verbal test. Before taking the test, the students see the number of questions in each section, difficulty level and average time spent on the test.