GORT-5 Examiner Record Booklet-Form A (25)
J. Lee Wiederholt • Brian R. Bryant
Reliability and Validity
For both forms, average internal consistency (content sampling) reliability coefficients exceed .90.
The alternate forms reliability coefficients for the Oral Reading Index exceed .90. The average test-retest (time sampling) coefficients for the ORI for the same form (e.g., Form A to A, Form B to B) exceed .85.
The average test-retest (time sampling) coefficient for the ORI for different forms (e.g., Form A to B and Form B to A) is .85.
Correlations of the GORT-5 scores with those of other well-known reading measures are large or very large in magnitude.
Binary classification studies indicate that the GORT-5 is able to accurately identify students with reading difficulties (i.e., sensitivity = .82, specificity = .86, ROC/AUC = .92, cut score = 90, low false positives).
Considerable other validity evidence is provided in the manual.
Package of 25, Gray Oral Reading Tests–Fifth Edition (GORT-5) Examiner Record Booklet–Form A
20 pages • 8.25" x 10.75
Grade level : Graduate - PostGrad- Professional
Item Weight : 2. lbs
Product dimensions : 17*8.5*1
Publisher : Pro-ED Publishing (August 6, 2012)
Language: : English