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DIFFERENTIAL DIFFERENTIAL ABILITY SCALES ABILITY SCALES Author Colin D. Elliott, Ph.D. Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales A differential measurement A differential measurement of distinctive abilities that of distinctive abilities that yields a profile of strengths yields a profile of strengths and weaknesses. and weaknesses. Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales Sattler (2001) Review of the DAS Sattler (2001) Review of the DAS 1. Good validity 1. Good validity 2. High reliabilities 2. High reliabilities 3. Excellent standardization 3. Excellent standardization 4. Good administration procedures 4. Good administration procedures 5. Good administrative guidelines and test 5. Good administrative guidelines and test materials materials 6. Helpful scoring criteria 6. Helpful scoring criteria Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales 7. GCA based on high gloadings 7. GCA based on high gloadings 8. Special Nonverbal Composite 8. Special Nonverbal Composite 9. Efficiency 9. Efficiency 10. Good Handbook 10. Good Handbook 11. Co-normed with achievement tests (link to 11. Co-normed with achievement tests (link to WIAT II is coming soon) WIAT II is coming soon) Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales Age Range: 2:6 to 17:11 years Age Range: 2:6 to 17:11 years (cid:131) Preschool Cognitive Battery (cid:131) Preschool Cognitive Battery (cid:131) School-Age Cognitive Battery (cid:131) School-Age Cognitive Battery (cid:131) Achievement Battery (cid:131) Achievement Battery Copyright © by The Psychological Corporation. All rights reserved. Structure of the DAS Structure of the DAS Cognitive Battery Cognitive Battery Ages 2:6 – 3:5 General Conceptual GCA Only Ability Ages 3:6 – 5:11 Verbal Nonverbal Ability Ability GCA and 2 Clusters Ages 6:0 – 17:11 Verbal Nonverbal Spatial GCA and 3 Clusters Ability Reasoning Ability Ability Copyright © by The Psychological Corporation. All rights reserved. Average Administration Average Administration Times Times Ages 2:6 to 3:6 All Cognitive Subtests 35 minutes General Conceptual Ability 25 minutes Ages 3:6 - 5:11 All Cognitive Subtests 65 minutes General Conceptual Ability 40 minutes Ages 6:0 - 17:11 All Cognitive Subtests 65 minutes General Conceptual Ability 50 minutes Achievement Subtests 15-20 minutes Copyright © by The Psychological Corporation. All rights reserved. Special Nonverbal Special Nonverbal Composite Composite Ages 2:6 – 3:6 Block Building Picture Similarities Ages 3:6 – 5:11 Copying Pattern Construction Picture Similarities Ages 6:00 – 17:11 Pattern Construction Recall of Designs Matrices Sequential and Quantitative Reasoning Copyright © by The Psychological Corporation. All rights reserved. Preschool Preschool Ages 2:6-3:5 Subtests Ages 2:6-3:5 Subtests Core Cognitive Tests Diagnostic Tests Core Cognitive Tests Diagnostic Tests (cid:137)Block Building (cid:137) Recall of Digits (cid:137)Block Building (cid:137) Recall of Digits (cid:137)Verbal Comprehension (cid:137) Recognition of (cid:137)Verbal Comprehension (cid:137) Recognition of Pictures (cid:137)Picture Similarities Pictures (cid:137)Picture Similarities (cid:137)Naming Vocabulary (cid:137)Naming Vocabulary Copyright © by The Psychological Corporation. All rights reserved. Preschool Preschool Ages 3:6-5:11 Subtests Ages 3:6-5:11 Subtests Core Cognitive Tests Diagnostic Tests Core Cognitive Tests Diagnostic Tests (cid:137)Verbal Comprehension (cid:137) Recall of Digits (cid:137)Verbal Comprehension (cid:137) Recall of Digits (cid:137)Picture Similarities (cid:137) Recognition of (cid:137)Picture Similarities (cid:137) Recognition of Pictures (cid:137)Naming Vocabulary Pictures (cid:137)Naming Vocabulary (cid:137) Block Building (cid:137)Pattern Construction (cid:137) Block Building (cid:137)Pattern Construction (cid:137) Matching Letter-Like (cid:137)Copying (cid:137) Matching Letter-Like (cid:137)Copying Forms* Forms* (cid:137)Early Number (cid:137)Early Number (cid:137) Recall of Objects** Concepts (cid:137) Recall of Objects** Concepts Copyright © by The Psychological Corporation. All rights reserved.

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Ability. Verbal. Ability. Nonverbal. Ability. Verbal. Ability. Nonverbal. Reasoning. Ability. Spatial .. Task: Reproduce 2- or 3-dimensional block designs using 4 or 8 wooden Leave model for examinee, except on Item 1.
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DIFFERENTIAL DIFFERENTIAL ABILITY SCALES ABILITY SCALES Author Colin D. Elliott, Ph.D. Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales A differential measurement A differential measurement of distinctive abilities that of distinctive abilities that yields a profile of strengths yields a profile of strengths and weaknesses. and weaknesses. Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales Sattler (2001) Review of the DAS Sattler (2001) Review of the DAS 1. Good validity 1. Good validity 2. High reliabilities 2. High reliabilities 3. Excellent standardization 3. Excellent standardization 4. Good administration procedures 4. Good administration procedures 5. Good administrative guidelines and test 5. Good administrative guidelines and test materials materials 6. Helpful scoring criteria 6. Helpful scoring criteria Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales 7. GCA based on high gloadings 7. GCA based on high gloadings 8. Special Nonverbal Composite 8. Special Nonverbal Composite 9. Efficiency 9. Efficiency 10. Good Handbook 10. Good Handbook 11. Co-normed with achievement tests (link to 11. Co-normed with achievement tests (link to WIAT II is coming soon) WIAT II is coming soon) Copyright © by The Psychological Corporation. All rights reserved. Differential Differential Ability Scales Ability Scales Age Range: 2:6 to 17:11 years Age Range: 2:6 to 17:11 years (cid:131) Preschool Cognitive Battery (cid:131) Preschool Cognitive Battery (cid:131) School-Age Cognitive Battery (cid:131) School-Age Cognitive Battery (cid:131) Achievement Battery (cid:131) Achievement Battery Copyright © by The Psychological Corporation. All rights reserved. Structure of the DAS Structure of the DAS Cognitive Battery Cognitive Battery Ages 2:6 – 3:5 General Conceptual GCA Only Ability Ages 3:6 – 5:11 Verbal Nonverbal Ability Ability GCA and 2 Clusters Ages 6:0 – 17:11 Verbal Nonverbal Spatial GCA and 3 Clusters Ability Reasoning Ability Ability Copyright © by The Psychological Corporation. All rights reserved. Average Administration Average Administration Times Times Ages 2:6 to 3:6 All Cognitive Subtests 35 minutes General Conceptual Ability 25 minutes Ages 3:6 - 5:11 All Cognitive Subtests 65 minutes General Conceptual Ability 40 minutes Ages 6:0 - 17:11 All Cognitive Subtests 65 minutes General Conceptual Ability 50 minutes Achievement Subtests 15-20 minutes Copyright © by The Psychological Corporation. All rights reserved. Special Nonverbal Special Nonverbal Composite Composite Ages 2:6 – 3:6 Block Building Picture Similarities Ages 3:6 – 5:11 Copying Pattern Construction Picture Similarities Ages 6:00 – 17:11 Pattern Construction Recall of Designs Matrices Sequential and Quantitative Reasoning Copyright © by The Psychological Corporation. All rights reserved. Preschool Preschool Ages 2:6-3:5 Subtests Ages 2:6-3:5 Subtests Core Cognitive Tests Diagnostic Tests Core Cognitive Tests Diagnostic Tests (cid:137)Block Building (cid:137) Recall of Digits (cid:137)Block Building (cid:137) Recall of Digits (cid:137)Verbal Comprehension (cid:137) Recognition of (cid:137)Verbal Comprehension (cid:137) Recognition of Pictures (cid:137)Picture Similarities Pictures (cid:137)Picture Similarities (cid:137)Naming Vocabulary (cid:137)Naming Vocabulary Copyright © by The Psychological Corporation. All rights reserved. Preschool Preschool Ages 3:6-5:11 Subtests Ages 3:6-5:11 Subtests Core Cognitive Tests Diagnostic Tests Core Cognitive Tests Diagnostic Tests (cid:137)Verbal Comprehension (cid:137) Recall of Digits (cid:137)Verbal Comprehension (cid:137) Recall of Digits (cid:137)Picture Similarities (cid:137) Recognition of (cid:137)Picture Similarities (cid:137) Recognition of Pictures (cid:137)Naming Vocabulary Pictures (cid:137)Naming Vocabulary (cid:137) Block Building (cid:137)Pattern Construction (cid:137) Block Building (cid:137)Pattern Construction (cid:137) Matching Letter-Like (cid:137)Copying (cid:137) Matching Letter-Like (cid:137)Copying Forms* Forms* (cid:137)Early Number (cid:137)Early Number (cid:137) Recall of Objects** Concepts (cid:137) Recall of Objects** Concepts Copyright © by The Psychological Corporation. All rights reserved.

Description:
Ability. Verbal. Ability. Nonverbal. Ability. Verbal. Ability. Nonverbal. Reasoning. Ability. Spatial .. Task: Reproduce 2- or 3-dimensional block designs using 4 or 8 wooden Leave model for examinee, except on Item 1.
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