IR-TI: Assessing READING of the line, between the lines, & BEYOND THE LINES
Should you be interested in a way to get a handle on student abilities to read at higher levels of literacy and thinking you might wish to acquire a copy of the IR-TI (Informal Reading-Thinking Inventory). It took 6 years of research to develop this simple innovation on the widely known Informal Reading Inventory (IRI).
The best thing about it is that it will help you to identify weak thinkers among some of your seemingly best readers and very solid thinking among some of your weaker readers.
Once you learn how to assess these aspects of reading and cognitive development, you will be able easily adjust your teaching so that your informal questions and post reading discussions spur growth in both groups.
If you go to Google Books look for a text called Literacy Disorders (Manzo & Manzo, 1995), then look up IR-TI. This will tell you all you need to know. I think that you will find it wonderfully revealing of our Different Minds.