We've used our data to identify the topics that students collectively find the hardest, and the questions within them that pose the most problems (e.g. mole calculations in Chemistry, experiment analysis in Biology etc).

If your school has Seneca Premium, you can set Hardest Questions alongside standard Seneca content within the create assignment flow (the orange dumbbell icon shows the Hardest Questions sections):

These can be set alongside the standard adaptive Seneca topic, or independently of them, for an assignment targeted at the most challenging topics only.