IBM test

IBM
#1

Does anyone know where I can find examples of ‘data matrix’ tests for IBM online? I have heard that in their IPATO screening test they use a mixture data matrices, maths reasoning questions and number series. I have never done a data matrix test before and can’t seem to find any practise examples.

It would also be helpful if someone just explained what they are (lol!) too! Are they some kind of graph or diagrammatic test?

Thanks : )