
Psychological Assessment Consultant
Intelligence, Personality, and Neuropsychology
Lawrence G. Weiss, PhD
Test Development Services
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All issues related to construction of cognitive, personality and neuropsychological tests.
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Process reviews and efficiencies of test construction procedures
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Stratifying standardization samples
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Designing reliability, validity, and clinical studies
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Writing or reviewing technical, admin, and scoring manuals
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Best practices in constructing norms
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Evaluating quality of norms
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Evaluating and correcting problems reported by test users
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All issues related to theories of intelligence, and the structure of intelligence tests.
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Dr. Weiss does not personally conduct data analyses.
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Expert Witness Services
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All criminal and civil cases in which psychological or neuropsychological test results are at issue, especially the WAIS & WISC
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Adjusting IQ's for old tests (i.e., Flynn effect)
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Determining the validity of a test administration
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Impact of variant or non-standardized testing conditions on scores,
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Ethical and copyright issues related to third party observers or recording of test sessions.
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Reasons for score differences across different tests and test versions.
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Professional qualifications for test use.
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Measurement error & confidence intervals
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Psychometric and applied measurement issues related to interpretation of test scores
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Best practices in administration, scoring, and interpretation of any Wechsler test
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Practice effects due to repeat administrations
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Psychometric and conceptual basis of intelligence and neurological tests
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Dr. Weiss does not personally test plaintiffs or inmates.
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