This report (a continuation of the Indiana University vocabulary study) identifies words children frequently misspell and analyzes the representative spelling patterns at different grade levels. The report is in three sections and addresses seven questions. Section 1 reports on the analysis of the high frequency words across grades, asking: (1) What are the high frequency words and are they usually spelled correctly?; and (2) How many words make up the majority of the running words? Section 2 reports on the analysis of commonly misspelled words across four grade levels, asking: (3) What words or categories are problematic across the grades?; and (4) What is the relationship between the number of different words and the number of running words in each category? Section 3 reports on the analysis of misspellings problematic at specific grade levels, asking: (5) How consistent are the categories developed in Section 2 when looking at grade levels separately?; (6) Are the patterns of misspellings at each grade level different from those identified in Section 2?; and (7) What categories are most problematic at each grade level, and does this change from grade to grade? Twenty-five tables of data are included, and nine appendixes contain high-frequency word lists at each grade, most often misspelled words, and commonly misspelled wordlists for grades 2-8. (SR)