The validity of Fry's Readability Graph for determining grade level readability scores was compared with the Spache Formula, the cloze technique, and oral reading in the case of seven primary-level books. Descriptions of these four indicated that to determine grade level, Fry's Readability Graph plots the total number of syllables with the total number of sentences for a 100-word passage. The materials used for comparative analysis were selected cloze passages read aloud by 30 primary grade children. Percent of errors was recorded for reading of the words not deleted, and grade level readability scores were computed by the Readability Graph and the Spache Formula. Rank order correlations showed highly consistent correlations for all four methods. The Readability Graph yielded about the same level scores as the Spache Formula. The cloze method was judged to be the most accurate and the most capable of making fine distinctions; however its use is limited because it requires a group of subjects to read the selections for evaluation at a given time. Tables and references are included. This research was funded under Title III of ESEA. (CM)