Neuropsychological TestingNeuropsychological Testing

Joseph Cicchino

Colleen Clougherty

Jorge De La Torre

Raul Espinoza Jr.

Williams, Arthur (2001). Williams, Arthur (2001). Psychometric concerns in Psychometric concerns in

neuropsychological testing. neuropsychological testing. Neuro Neuro Rehabilitation 16.Rehabilitation 16.

Attempts to describe measurement and norming problems that both exist and are common among neuropsychological tests

Shows the need for further development in neuropsychological testing.

Problems with BatteriesProblems with Batteries

Few batteries to show the ability of the test to distinguish between two or more diagnostic groups of concern

Standardize flexible and fixed battery tests

Flexible Battery ProblemFlexible Battery Problem

Scores on flexible battery tests differentiate

No group for comparison can exist

No bell shaped curve

Tests lack accuracy

ReliabilityReliability

Minimum reliability is 0.80

Many do not give reliability

Collecting new evidence is necessary

Problem Comparing ScoresProblem Comparing Scores

Comparing scores to means and standard deviations of “normal samples”

Different scores from tests

No normative sample

Critical ReviewCritical Review

Tests should be used with extreme caution

Further research is needed

THE ENDTHE END

Thank you