Especially encouraging are the new studies of the test's sensitivity, specificity, and ROC/AUC. Additional studies confirmed the TWS-5's content-description, criterion-prediction, and construct-identification validity. 90, which indicates the test's high reliability. Test reliability was studied in various ways: coefficient alphas, alternate form (immediate administration), test-retest, alternate form (delayed administration), and interscorer. The analyses show no gender or racial bias in the TWS-5 items. The TWS-5 was normed on a representative sample of 1,634 students from 23 U.S. The Answer and Record Form offers a convenient way to record and keep track of scores, summarize the results, and indicate any comments and recommendations. The TWS-5 provides percentiles, standard scores, age and grade equivalents. Each form contains 50 spelling words drawn from eight basal spelling series and graded word lists. It has two forms that can be administered in 20 minutes to either individually or in groups. The Test of Written Spelling- Fifth Edition (TWS-5) is an accurate and efficient instrument that uses a dictated-word format to assess spelling skills in school-age children and adolescents. You will receive an email after purchase indicating how to access the product. This is a digital product available on RedShelf after purchase.
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