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Diagnostic Achievement Battery - Fourth Edition
by Phyllis L. Newcomer
Ages: 6 - 14 years
Testing Time: 90 to 120 minutes
Complete DAB-4 Kit Includes: Manual, Student Booklet, 25 Profile/Examiner Record Booklets, 25 Student Response Booklets, Assessment Probes, and an audio CD, all in a sturdy storage box
The DAB-4 is a revision of one of the most popular individual achievement tests available. Its 8 subtests identify students’ strengths and weaknesses across important areas of school achievement. A supplemental manual shows how to probe student responses to obtain information about students’ thinking processes and problem-solving strategies.
Subtests of the DAB-4
*can be administered individually or in small groups
Standard scores (M=10, SD=3 for the subtests and M=100, SD=15 for the composites), percentile ranks, and age/grade equivalents are provided.
Reliability and Validity
Internal consistency (content sampling) reliability coefficients for all of the composites range from .89 to .97. The test-retest (time sampling) coefficient for the Total Basic Academic Skill composite is .94. Correlations of the DAB-4 composite scores with those of other well-known academic achievement measures range from .56 to .76. Diagnostic accuracy studies indicate that the DAB-4 is able to accurately identify students with poor academic achievement and students with a prior learning disability diagnosis (i.e., median sensitivity = .85, median specificity = .95, median ROC/AUC = .98). Considerable other validity evidence is provided in the manual.
Uses for the DAB-4
The DAB-4 has four primary uses. It can be used to