The Deluxe and District Editions include a second type of reading comprehension measure: CCSS (Common Core State Standard) Reading. The CCSS Reading passages are quite a bit shorter, and more simplistically written, to make them easier and more accessible than the MCRC (multiple choice) reading comprehension measures. These tests start at grade 3 and are offered through 8th grade.
One item to note, while grade 2 is where the MCRC measures start, there are no grade 2 CCSS reading measures. That is because the MCRC measures at grade 2 are already much simpler than the comprehension measures at the other grades (the passages are approximately 700 words long rather than 1500 to 1800, there are only 12 questions rather than 20, and there are only literal and inferential questions rather than literal, inferential, and evaluative).
The CCSS Reading measures are designed for students who are persistently struggling with reading comprehension and are consistently low-performing on the MCRC relative to their peers.
The CCSS Reading measures include three subtests, Read to Perform a Task, Informational Text, and Short Literary Text, organized together into a comprehensive Reading Comprehension Assessment.