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ERIC Number: ED051975
Record Type: RIE
Publication Date: 1971-Apr
Pages: 12
Abstractor: N/A
Reference Count: 0
Cloze Readability versus the Dale-Chall Formula.
Froese, Victor
The validity of the Dale-Chall Readability ratings for sixth-grade science textbooks when compared to an independent criterion of language difficulty expressed in cloze units was examined. The Canadian Lorge-Thorndike IQ Test and the Canadian Test of Basic Skills, Vocabulary and Comprehension subtests, were administered to 366 sixth graders. Mean IQ score was 102, while mean scores for vocabulary and comprehension were 6.19 and 6.15, respectively. Passages from 12 science textbooks were subjected to the cloze technique and administered to the subjects. Findings revealed that (1) the 12 cloze passages yielded a reliability coefficient of .79; (2) cloze scores correlated from .55 to .85 with the intelligence measure; (3) cloze scores correlated from .64 to .86 with vocabulary, and from .52 to .85 with comprehension; (4) the cross-validation coefficient of .90 obtained by Dale and Chall and the cross-validation coefficient of -.29 obtained in this study are significantly different beyond the .01 level of confidence. Major conclusions were (1) that the cloze tests are reliable measures of language difficulty and (2) that the Dale-Chall Readability Formula is not a valid measure of sixth-grade science textbook materials when the cloze procedure is used as a criterion. References are included. (VJ)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Note: Paper presented at the meeting of the International Reading Association, Atlantic City, N.J., Apr. 19-23, 1971