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WMS-IV

Definition

Wechsler Memory Scale, Fourth Edition; standardised memory battery providing five Memory Index scores; core of forensic neuropsychological memory assessment.

Full name
Wechsler Memory Scale, Fourth Edition
Type
Standardised memory battery
Output
Five Memory Index scores
Use
Core tool in forensic neuropsychological memory assessment

Common questions

Why is a standardised battery like WMS-IV preferred over informal memory testing in forensic evaluations?+

Standardisation means the examinee's scores are compared against a normed reference population using a fixed administration procedure, which supports the reliability and reproducibility that courts expect and reduces the risk that results reflect testing conditions rather than the person's actual memory function.

What does WMS-IV assess that a general cognitive test does not capture in depth?+

It breaks memory function into multiple indices, typically covering both immediate and delayed recall across auditory and visual material, giving a more granular picture of specific memory domains than a broad intelligence or screening test would provide.

Related terms

Atkins V. Virginia
US Supreme Court 2002 decision holding that executing intellectually disabled defendants violates the Eighth Amendment; requires DSM-standard intellectual disability determination including Flynn-corrected...
BNSS § 367
Provision of India's Bharatiya Nagarik Suraksha Sanhita 2023 governing court procedure when an accused person appears to be of unsound mind; cognitive...
Dual-Deficit Requirement
DSM-5 requirement for intellectual disability diagnosis: deficits in both measured intellectual functioning and adaptive behaviour, both present before age 18.
Flynn Effect
Documented approximately 3-point-per-decade rise in population mean IQ scores; requires correction when IQ scores obtained with older norms are used in legal...
FSIQ
Full-Scale IQ; derived from 10 core WAIS-IV subtests; primary score used in intellectual disability determinations and Atkins proceedings.
Hall V. Florida
US Supreme Court 2014 decision requiring courts to account for IQ measurement error and the Flynn effect before enforcing rigid IQ cutoffs...
MacCAT-CA
MacArthur Competence Assessment Tool for Criminal Adjudication; a 22-item standardised instrument measuring Understanding, Reasoning, and Appreciation of the trial process, grounded in...
NIMHANS Neuropsychological Battery
Normative neuropsychological battery published by NIMHANS Bangalore with Indian-population norms; primary reference for forensic cognitive assessment in India.
Performance Validity Test (PVT)
Any test designed to detect inadequate effort or deliberate underperformance in cognitive assessment; TOMM is the leading example for memory; embedded PVTs...
Vineland-3
Vineland Adaptive Behavior Scales, Third Edition; standardised semi-structured interview measuring adaptive functioning; required for DSM-5 intellectual disability determination alongside IQ testing.
WAIS-IV
Wechsler Adult Intelligence Scale, Fourth Edition; 15-subtest, 4-index IQ battery; gold standard for forensic intellectual functioning assessment.

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