EVALUATION SCALE - Renormed
by Stephen B. McCarney, Ed.D.
Tamara J. Arthaud, Ph.D.
Copyright © 2007
The Learning Disability Evaluation Scale - Renormed Second Edition (LDES-R2) was developed to enable instructional personnel to document those performance behaviors most characteristic of learning disabilities in children and youth. The LDES-R2 avoids the nature of a testing situation by relying on the performance observations of the classroom teacher or other instructional personnel. The instrument is designed to provide a profile based on the most commonly accepted definition of learning disabilities (IDEA, 2004). This profile classifies whether the student’s difficulties are in the areas of Listening, Thinking, Speaking, Reading, Writing, Spelling, or Mathematical Calculations. This feature makes the LDES-R2 particularly appropriate for initial referral and screening procedures in which decisions for more thorough educational assessment must be made.
The LDES-R2 standardization included 25 states, represented the major geographic regions of the United States, and approximated the demographic characteristics of the nation as reported in the 2000 Statistical Abstract of the United States.
The technical manual includes data on internal consistency, test-retest, and inter-rater reliability; item and factor analysis; and content, criterion-related, diagnostic, and construct validity.