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Muir, Sharon – Reading Horizons, 1978
Discusses the accuracy of the Fog Index and the SMOG grade (two readability formulas) as predicators of readability. (MAI)
Descriptors: Intermediate Grades, Predictive Validity, Readability, Readability Formulas
FRY, EDWARD – 1967
A REVISION OF THE READABILITY GRAPH WITH DIRECTIONS FOR ITS USE AND VALIDTIY DATA ARE PRESENTED. THE USE OF THE GRAPH INVOLVES WORD SAMPLES, NUMBER OF SENTENCES, AND NUMBER OF SYLLABLES. THE LATTER TWO ARE PLOTTED ON A GRAPH TO ASCERTAIN GRADE LEVELS. THE CORRELATIONS OF THE READABILITY GRAPH WITH THE DALE-CHALL, FLESCH, AND SPACHE FORMULAS ARE…
Descriptors: Graphs, Predictive Validity, Readability, Readability Formulas

Davison, Alice; Kantor, Robert N. – Reading Research Quarterly, 1982
Argues against the implicit use of readability formulas as guides to writing graded texts and urges experimental research to define the real factors constituting readability. (AEA)
Descriptors: Case Studies, Predictive Validity, Readability Formulas, Reading Research