Assessing Adaptive Functioning in Death Penalty Cases after Hall and DSM-5

Area of Science:

• Forensic Psychology
• Neuropsychology
• Legal Psychology

Background:

• Recent legal decisions (Hall v. Florida, 2014) have intensified scrutiny on adaptive functioning assessments in capital punishment cases.
• The Atkins v. Virginia (2002) ruling established intellectual disability as a basis for exemption from capital punishment, necessitating accurate adaptive functioning evaluations.

Purpose of the Study:

• To provide evidence-based strategies for assessing adaptive functioning in defendants seeking exemption from capital punishment.
• To guide legal professionals and clinicians in conducting thorough and legally sound evaluations of adaptive functioning.

Main Methods:

• Review of legal precedents and psychological assessment guidelines.
• Analysis of adaptive functioning domains relevant to capital cases.
• Emphasis on utilizing standardized measures according to test manual instructions.

Main Results:

• Recommended strategies include assessing both adaptive assets and deficits.
• Evaluations must consider evidence across the developmental period and lifespan.
• Distinguishing true incapacity from the mere absence of adaptive behavior is crucial.

Conclusions:

• Accurate assessment of adaptive functioning is critical for determining capital punishment eligibility.
• Adherence to standardized testing protocols and informant bias awareness are essential.
• The standard error of measurement (SEM) requires careful consideration in light of recent legal standards.