Mastering analytical writing involves the proficient use of varied later-acquired grammatical, lexical and discourse forms and functions. Developmental studies have identified specific linguistic features as diagnostic of increasing proficiency. This study examines how these features change throughout educational levels and before and after the…

This paper considers whether the sources of linguistic complexity presented within texts targeted at 1st-grade readers have increased, decreased, or held steady over the 52-year period from 1962 to 2013. A collection of more than 450 texts is examined. All texts were selected from Grade 1 textbooks published by Scott Foresman during the targeted…