The combo of tests used in CA with which you're familiar may or may not be what she's referring to. There is a different group of STAR assessments that are widely used, including one which the company describes as the "leading computer-based diagnostic assessment of early literacy skills developed for Pre-K–3 students."

If you think that may be what she took, you can find more info here: http://www.renlearn.com/training/search/default.aspx?q=STAR%20%22Parent's%20Guide%22