Concurrent and discriminant validity of the Gordon Diagnostic System: A preliminary study

✍ Scribed by Jeffrey N. Wherry; Nick Paal; John B. Jolly; Balkozar Adam; Carol Holloway; Betty Everett; Lela Vaught

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 466 KB
• Volume: 30
• Category: Article
• ISSN: 0033-3085
• DOI: 10.1002/1520-6807(199301)30:1<29::aid-pits2310300105>3.0.co;2-x

✦ Synopsis

The discriminant and concurrent validity of the Gordon Diagnostic System (GDS) was investigated in 29 youngsters categorized into "normals" or "ADHDs" based on teacher ratings. The results failed to demonstrate the discriminant validity of any GDS score regardless of the behavior rating used. The Vigilance Correct and Vigilance Omission scores were significantly correlated with ADHD Rating Scale scores completed by teachers. The sample size in the study demands cautious interpretation of these results; however, the authors suggest the continued use of multiple behavior ratings by teachers as the "gold standard" for the classification of youngsters with a subpected Attention-deficit Hyperactivity Disorder.