Ryan W Schroeder

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This study examines the effectiveness of symptom validity measures to detect suspect effort in cognitive testing and invalid completion of ADHD behavior rating scales in 268 adults referred for ADHD assessment. Patients were diagnosed with ADHD based on cognitive testing, behavior rating scales, and clinical interview. Suspect effort was diagnosed by at(More)
Reliable Digit Span (RDS) is a heavily researched symptom validity test with a recent literature review yielding more than 20 studies ranging in dates from 1994 to 2011. Unfortunately, limitations within some of the research minimize clinical generalizability. This systematic review and cross-validation study was conducted to address these limitations, thus(More)
OBJECTIVE The current study investigated changes in neuropsychologists' validity testing beliefs and practices since publication of the last North American survey targeting these issues in 2007 and explored emerging issues in validity testing that had not been previously addressed in the professional survey literature. METHODS Licensed North American(More)
Although it is recognized that significant cognitive deficits are inherent in many psychiatric disorders, there is minimal research on whether the deficits can cause a failing score on symptom validity tests (SVTs). The performances of 104 and 178 patients with psychotic disorders and non-psychotic psychiatric disorders, respectively, on seven SVTs were(More)
The Test of Memory Malingering is one of the most popular and heavily researched validity tests available for use in neuropsychological evaluations. Recent research has suggested, however, that the original indices and cutoffs may require modifications to increase sensitivity rates. Some of these modifications lack cross-validation and no study has examined(More)
It has been suggested that the Sentence Repetition Test (SRT) could serve as an adequate embedded symptom validity measure identifying suspect effort during neuropsychological testing. However, very little research has examined sensitivity and specificity rates when using this measure in a variety of clinical settings. The SRT was administered to 1031(More)
This study utilized multiple criterion group neuropsychological samples to evaluate the "over-reporting" and "under-reporting" MMPI-2-RF validity scales. The five criterion groups included in this study were (1) litigating traumatic brain injury patients who failed Slick et al. criteria for probable malingering, (2) litigating traumatic brain injury(More)
Frontotemporal dementia is a cause of behavioral disturbance that usually appears in individuals between 45 and 65 years of age. The authors present the case of a 65-year-old patient that illustrates how frontotemporal dementia can be misdiagnosed based on a behavioral pattern that suggests the presence of a primary mood disorder. Early accurate diagnosis(More)
OBJECTIVE Normative sample composition can vary notably as a function of exclusionary criteria in older adult samples given that typical medical conditions of exclusion become more prevalent with age. Older adult norms may consist of typically aging or healthy aging individuals according to the stringency of the exclusion criteria, a difference illustrated(More)
OBJECTIVE The current study investigated expert beliefs and practices as they relate to neuropsychological validity testing. METHODS North American neuropsychologists with expertise in neuropsychological validity testing (n = 24) were surveyed on numerous items related to validity testing. Results were analyzed and compared to findings from a prior expert(More)