An Investigation of the Learning Disability Construct by the JAN Technique
W. Scott Mabee · The Journal of Experimental Education · 1978
Profiles of 25 possible learning disabilities (LD) cases were constructed. Thirty-four North Dakota LD specialists served as raters making a diagnostic decision. A judgment analysis was performed on the decisions of the 34 raters, and one major judgmental policy and one minor policy were found to be operating among the raters. These judgmental policies, it was argued, represented the construct of learning disabilities for the respective groups.