. Author manuscript; available in PMC: 2022 Jan 1.

Published in final edited form as: Hippocampus. 2020 Sep 19;31(1):79–88. doi: 10.1002/hipo.23264

Table 1.

Diagnostic Criteria for Nonverbal Learning Disability

Criterion	Assessment Measure
Child must have:
Perceptual deficit OR a discrepancy between VIQ and PIQ (>15 points)	WISC or WASI: Block Design or Matrix Reasoning ≤16^th%ile
Intact single word reading abilities	WJ-III Letter Word Identification ≥16^th%ile
Absence of autistic traits	ADI-R Interests and Behaviors Module ≤4
Child must also have 2 of the following:
Fine motor difficulties	Perdue Pegboard ≤16^th%ile
Math calculation difficulties	WJ-III Calculation ≤16^th%ile
Visual executive functioning difficulties	Rey Osterrieth Complex Figure Test Copy ≤16^th%ile
Social difficulties	Vineland-II Socialization domain ≤16^th%ile or CBCL Social Problems ≥ 95^th%ile

ADI-R = Autism Diagnostic Interview – Revised; CBCL = Child Behavior Checklist; NVLD = Nonverbal Learning Disability; WJ = Woodcock Johnson; WASI = Wechsler Abbreviated Scale of Intelligence; WISC = Wechsler Intelligence Scale for Children