Figure 4
A horizontal bar graph titled Levels of grounds quality displays 6 bars representing student comment counts across different levels of textual evidence. The vertical axis on the left lists six categories from top to bottom colon textual evidence plus reasoning G hyphen 5, Textual evidence G hyphen 4, text based inferences or references G hyphen 3, general references to text G hyphen 2, non text based grounds G hyphen 1, and No grounds G hyphen 0. The horizontal axis at the bottom is labeled number of student comments and ranges from 0 to 60 in increments of 10. The bar for G hyphen 3 is the longest, reaching just past 50. G hyphen 4 extends to approximately 35. G hyphen 5 reaches about 30. G hyphen 1 extends to around 25. G hyphen 0 and G hyphen 2 are the shortest, each slightly above 10. All bars are evenly spaced, shaded uniformly, and aligned with their respective category labels. Tick marks and axis labels are clearly visible.Frequency of Comments at Each Level of Grounds