This document may give you more info:
http://doc.renlearn.com/KMNet/R003957507GG2170.pdfYou'll have to dig a bit, but I'll summarize some of the relevant highlights:
STAR is computer-adaptive multiple-choice testing intended for use for screening, diagnostic, or progress monitoring functions. Only 24 or 25 items are administered to each child in each subject. Item selection changes from item to item based on performance on the previous items. In reading, in grades 3-12, there are 20 short comprehension questions, and 5 extended comprehension questions, both cloze tasks. In math, there are 8 each of numeration, computation, and problem solving. Each test takes about 10-15 minutes to administer.
Cut sheet for parents:
http://doc.renlearn.com/KMNet/R0054872491706A8.pdfThe parent report is quite sketchy, including only the SS, which you would need the developmental chart to interpret, the grade equivalent (of which anathema I think I need not say more than I have in the past!), the grade-based percentile and range, and the normal curve equivalent (another representation of rank order in the norm population). p. 38-41 of the above document include some interpretive information; the paragraphs on the scaled score are probably the most useful.
The big picture thought to keep in mind is that the instrument is intended for screening and progress monitoring, with an eye to identifying and monitoring at-risk students, not in-depth assessment.
