Technical Analysis of the Slosson Phonics and Structural Analysis Test  

Oleh:

Erford, Bradley T. ; Dutton, Jessica L.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 65 no. 06 (Dec. 2005), page 1011-1025.
Topik: reading; phonics; assessment; structural analysis
Fulltext: 1011.pdf (88.28KB)

Isi artikel

(PKPM) Technical characteristics of Slosson Phonics and Structural Analysis Test (SP-SAT) scores were studied using three independent samples of boys and girls aged 6 years, 6 months, through 9 years, 11 months. A decision efficiency study (n = 100) resulted in a total predictive value of .86 (sensitivity = .95, specificity = .77, positive predictive power = .80, negative predictive power = .94). Item difficultywas .65 (median), and item discrimination was .52 (median). Interitem consistency was r = .93, .93, and .96 for scores on the Phonics Index, Structural Analysis Index, and SP-SAT total standard score, respectively (n = 375), whereas 2-week test-retest reliability was r = .90, .88, and .90 for scores on the same scales, respectively (n = 165). The SP-SAT yielded moderate to high concurrent validity coefficients when compared with the Wide-Range AchievementTest–Third Edition Reading subtest; Woodcock-Johnson: Tests of Achievement–ThirdEdition Letter-Word Identification,Word Attack, Passage Comprehension, and Writing Samples subtests; and Woodcock-Johnson: Tests of Achievement–Revised Dictationsubtest. Practice and research implications are discussed.

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