Jacob A Fiala, Joshua H Owens, Kelsey R Thomas, Brad P Taylor, Lindsay J Rotblatt, Michael M Marsiske
{"title":"Demographically adjusted normative study of everyday cognition in the ACTIVE sample.","authors":"Jacob A Fiala, Joshua H Owens, Kelsey R Thomas, Brad P Taylor, Lindsay J Rotblatt, Michael M Marsiske","doi":"10.1080/13854046.2025.2470495","DOIUrl":"https://doi.org/10.1080/13854046.2025.2470495","url":null,"abstract":"<p><p><b>Objective:</b> The goals of this project were to (1) provide demographically adjusted normative data for three performance-based tests of everyday cognition: The Everyday Problems Test, Observed Tasks of Daily Living-Revised, and Timed Instrumental Activities of Daily Living and (2) examine the relationships between test performance and traditional cognitive test scores and relevant self-report measures. <b>Method:</b> A sample of 2,767 Black (<i>n</i> = 726) and White (<i>n</i> = 2,041) older adults (aged 65-94) in the ACTIVE baseline sample were included in this study. Normed scores adjusting for age, education, gender, and race were created using multivariable fractional polynomial regressions. Adjusted scores were unrelated to age, education, gender, and race. A Poisson regression was performed to predict participants' number of demographically adjusted low (<16<sup>th</sup> percentile) test scores. <b>Results:</b> Higher intellectual self-efficacy (coef = -0.20), immediate memory (-0.21), reasoning (-0.25), recognition vocabulary (-0.04), and digit-symbol substitution (-0.01) significantly predicted <i>fewer</i> low test scores while higher physical health related QOL (0.21) and daily activity limitations (0.10) significantly predicted <i>more</i> low test scores (<i>p</i> < .01). <b>Conclusions:</b> Generally, persons with more widespread impairment on the tests evinced more cognitive, emotional, and functional problems. The three demographically adjusted scores fit excellently on a single factor, which uniquely accounted for 19%-36% of variance in the three test scores, in excess of what was already explained by the covariates, indicating the presence of reliable shared variance among the three tests that was not attributable to demographics nor any of the other covariates.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-23"},"PeriodicalIF":3.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Annual report of the presidents of the AACN, ABCN, and AACNF.","authors":"Dominic A Carone, Douglas Bodin, Joseph F Kulas","doi":"10.1080/13854046.2025.2479009","DOIUrl":"https://doi.org/10.1080/13854046.2025.2479009","url":null,"abstract":"","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-18"},"PeriodicalIF":3.0,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A Andrew Dimmick, Charlie C Su, Hanan S Rafiuddin, David C Cicero
{"title":"Evaluating ChatGPT for neurocognitive disorder diagnosis: a multicenter study.","authors":"A Andrew Dimmick, Charlie C Su, Hanan S Rafiuddin, David C Cicero","doi":"10.1080/13854046.2025.2475567","DOIUrl":"https://doi.org/10.1080/13854046.2025.2475567","url":null,"abstract":"<p><p><b>Objective</b>: To evaluate the accuracy and reliability of ChatGPT 4 Omni in diagnosing neurocognitive disorders using comprehensive clinical data and compare its performance to previous versions of ChatGPT. <b>Method</b>: This project utilized a two-part design: Study 1 examined diagnostic agreement between ChatGPT 4 Omni and clinicians using a few-shot prompt approach, and Study 2 compared the diagnostic performance of ChatGPT models using a zero-shot prompt approach using data from the National Alzheimer's Coordinating Center (NACC) Uniform Data Set 3. Study 1 included 12,922 older adults (<i>M<sub>age</sub></i> = 69.13, <i>SD</i> = 9.87), predominantly female (57%) and White (80%). Study 2 involved 537 older adults (<i>M<sub>age</sub></i> = 67.88, <i>SD</i> = 9.52), majority female (57%) and White (81%). Diagnoses included no cognitive impairment, amnestic mild cognitive impairment (MCI), nonamnestic MCI, and dementia. <b>Results</b>: In Study 1, ChatGPT 4 Omni showed fair association with clinician diagnoses (χ2 (9) = 6021.96, <i>p</i> < .001; κ = .33). Notable predictive measures of agreement included the MoCA and memory recall tests. ChatGPT 4 Omni demonstrated high internal reliability (α = .96). In Study 2, no significant diagnostic agreement was found between ChatGPT versions and clinicians. <b>Conclusions</b>: Although ChatGPT 4 Omni shows potential in aligning with clinician diagnoses, its diagnostic accuracy is insufficient for clinical application without human oversight. Continued refinement and comprehensive training of AI models are essential to enhance their utility in neuropsychological assessment. With rapidly developing technological innovations, integrating AI tools in clinical practice could soon improve diagnostic efficiency and accessibility to neuropsychological services.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-16"},"PeriodicalIF":3.0,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nikki H Stricker, Ryan D Frank, Elizabeth A Boots, Winnie Z Fan, Teresa J Christianson, Walter K Kremers, John L Stricker, Mary M Machulda, Julie A Fields, John A Lucas, Jason Hassenstab, Paula A Aduen, Gregory S Day, Neill R Graff-Radford, Clifford R Jack, Jonathan Graff-Radford, Ronald C Petersen
{"title":"Mayo Normative Studies: regression-based normative data for remote self-administration of the Stricker Learning Span, Symbols Test, and Mayo Test Drive Screening Battery Composite and validation in individuals with mild cognitive impairment and dementia.","authors":"Nikki H Stricker, Ryan D Frank, Elizabeth A Boots, Winnie Z Fan, Teresa J Christianson, Walter K Kremers, John L Stricker, Mary M Machulda, Julie A Fields, John A Lucas, Jason Hassenstab, Paula A Aduen, Gregory S Day, Neill R Graff-Radford, Clifford R Jack, Jonathan Graff-Radford, Ronald C Petersen","doi":"10.1080/13854046.2025.2469340","DOIUrl":"10.1080/13854046.2025.2469340","url":null,"abstract":"<p><p><b>Objective:</b> Few normative data for unsupervised, remotely-administered computerized cognitive measures are available. We examined variables to include in normative models for Mayo Test Drive (MTD, a multi-device remote cognitive assessment platform) measures, developed normative data, and validated the norms. <b>Method:</b> 1240 Cognitively Unimpaired (CU) adults ages 32-100 years (96% White) from the Mayo Clinic Study of Aging and Mayo Alzheimer's Disease Research Center with Clinical Dementia Rating<sup>®</sup> of 0 were included. We converted raw scores to normalized scaled scores and derived regression-based normative data adjusting for age, age<sup>2</sup>, sex, and education (base model); alternative norms are also provided (age + age<sup>2</sup> + sex; age + age<sup>2</sup>). We assessed additional terms using an <i>a priori</i> cut-off of 1% variance improvement above the base model. We examined low test performance rates (< -1 <i>SD</i>) in independent validation samples (<i>n</i> = 167 CU, <i>n</i> = 64 mild cognitive impairment (MCI), <i>n</i> = 14 dementia). Rates were significantly different when 95% confidence intervals (CI) did not include the expected 14.7% base rate. <b>Results:</b> No model terms met the <i>a priori</i> cut-off beyond the base model, including device type, response input source (e.g. mouse, etc.), or session interference. Norms showed expected low performance rates in CU and greater rates of low performance in MCI and dementia in independent validation samples. <b>Conclusion:</b> Typical normative models appear appropriate for remote self-administered MTD measures and are sensitive to cognitive impairment. Device type and response input source did not explain enough variance for inclusion in normative models but are important for individual-level interpretation. Future work will increase the inclusion of individuals from under-represented groups.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-30"},"PeriodicalIF":3.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143607267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Greta N Minor, Olivia R Kessler, Laura Fry, Brooke Huizenga, Sara Johnson, Savana M Naini, Chen Shen, Sophie J Wiitala, Michael R Basso, Courtney L Eskridge, Erin Holker, Allison M Logemann, Eric J Waldron, Douglas M Whiteside
{"title":"The relationship between performance validity Test failure, fatigue, and psychological functioning in Long COVID.","authors":"Greta N Minor, Olivia R Kessler, Laura Fry, Brooke Huizenga, Sara Johnson, Savana M Naini, Chen Shen, Sophie J Wiitala, Michael R Basso, Courtney L Eskridge, Erin Holker, Allison M Logemann, Eric J Waldron, Douglas M Whiteside","doi":"10.1080/13854046.2025.2476798","DOIUrl":"https://doi.org/10.1080/13854046.2025.2476798","url":null,"abstract":"<p><p><b>Objective:</b> At times, patients with Long COVID fail performance validity tests (PVTs) for cognitive measures and symptom validity tests (SVTs) embedded in formal personality measures. This is the first study, to our knowledge, to examine whether self-reported symptoms on the Personality Assessment Inventory (PAI) and the Modified Fatigue Impact Scale (MFIS) were related to performance validity in Long COVID patients. <b>Method:</b> Participants were 175 individuals diagnosed with Long COVID who completed four PVTs, the MFIS, and the PAI. There was evidence for nots based on medical records review for 25.71% of the patients. Based on PVT performances, patients were assigned to one of three groups: Pass group (no PVT failures), Intermediate group (1 PVT failure), or Fail group (2+ PVT failures). <b>Results:</b> 84.57% of participants were in the Pass group, 9.14% in the Intermediate group, and 6.29% in the Fail group. There was a not a significant difference in external incentive frequency between groups. Only one significant group difference on the PAI scales and subscales was found, with slightly greater somatization symptoms (SOM-S) reported in the Fail group relative to the Pass group (<i>η<sup>2</sup></i> = .03). The MFIS was not significantly different between groups. <b>Conclusions:</b> These findings suggest that PVT failure is not associated with fatigue or PAI responses, except on the somatization subscale.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-16"},"PeriodicalIF":3.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143588327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jesús Cacho-Gutiérrez, Rosalía García García-Patino, Ricardo García-García, Yinet Cuevas-Pérez, Valentina Ladera-Fernández, María Victoria Perea-Bartolomé, Laura Vicente-González, Julián Benito-León
{"title":"Adapting the Hopkins Verbal Learning Test-Revised with Semantic Cues: Assessing diagnostic utility in a Spanish clinical population.","authors":"Jesús Cacho-Gutiérrez, Rosalía García García-Patino, Ricardo García-García, Yinet Cuevas-Pérez, Valentina Ladera-Fernández, María Victoria Perea-Bartolomé, Laura Vicente-González, Julián Benito-León","doi":"10.1080/13854046.2025.2472443","DOIUrl":"https://doi.org/10.1080/13854046.2025.2472443","url":null,"abstract":"<p><p><b>Background:</b> The Hopkins Verbal Learning Test-Revised (HVLT-R) is widely used for assessing episodic memory. In this study, we evaluated the HVLT-R with Semantic Cues (HVLT-R-SC), an adapted version incorporating semantic cues to improve diagnostic utility. The assessment was conducted in a Spanish cohort comprising cognitively unimpaired controls, individuals with multi-domain amnestic mild cognitive impairment (md-aMCI), and early Alzheimer's disease (AD). <b>Methods:</b> 684 participants (333 controls, 141 md-aMCI, and 210 early AD) completed the HVLT-R-SC. Effect sizes were calculated to quantify group differences, while Cronbach's alpha was used to assess the test's reliability. Receiver Operating Characteristic curve analysis was performed to assess discriminatory power, with the Area Under the Curve (AUC) summarizing classification accuracy. Sensitivity, specificity, and efficacy percentages were reported, with optimized cutoff points determined. Odds ratios quantified the association between HVLT-R-SC performance and diagnostic group classifications. <b>Results:</b> Significant differences were observed across all HVLT-R-SC indices among the groups. Total Delayed Recall with and without Semantic Cues exhibited the largest effect size (η<sup>2</sup> = 0.69), with Total Delayed Recall with Semantic Cues demonstrating the highest diagnostic accuracy (AUC = 0.90 for differentiating md-aMCI from controls and 0.99 for distinguishing early AD from controls). Optimal cutoffs for Total Delayed Recall with Semantic Cues were 5 words for md-aMCI (sensitivity = 74%, specificity = 90%, efficacy = 85.44%) and 4 words for early AD (sensitivity = 93%, specificity = 97%, efficacy = 95.21%). Significant associations were observed between HVLT-R-SC performance and diagnostic classification, with an odds ratio of 26.04 for md-aMCI and 362.50 for early AD. Internal consistency was excellent (Cronbach's alpha = 0.95), indicating strong reliability of the HVLT-R-SC. <b>Conclusions:</b> The HVLT-R-SC demonstrated strong reliability and excellent diagnostic performance in identifying memory impairments. The inclusion of semantic cues improved diagnostic accuracy, provided clinically actionable cutoff points, and enhanced the test's utility, particularly for detecting md-aMCI and early AD.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-20"},"PeriodicalIF":3.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143558881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Therese Händel Waggestad, Bjørn-Eivind Kirsebom, Carsten Strobel, Linda Gjøra, Geir Selbæk, Peter Bekkhus-Wetterberg, Olav Aga, Jens Egeland
{"title":"New regression-based norms for the Trail Making Test on Norwegian older adults: Understanding the effect of education.","authors":"Therese Händel Waggestad, Bjørn-Eivind Kirsebom, Carsten Strobel, Linda Gjøra, Geir Selbæk, Peter Bekkhus-Wetterberg, Olav Aga, Jens Egeland","doi":"10.1080/13854046.2025.2469940","DOIUrl":"https://doi.org/10.1080/13854046.2025.2469940","url":null,"abstract":"<p><p><b>Objective:</b> To produce regression-based norms for older adults on the revised Trail Making Test with alphabet support (TMT-NR3). By examining the potential modulating effects and putative interaction effects of age, education, and sex, we aim to gain insights into cognitive aging and the effects of education. <b>Method:</b> Altogether, 440 healthy participants with an age-span from 70 to 92 years from the NorFAST (<i>n</i> = 249) and the HUNT (<i>n</i> = 191) studies were included. Regression-based norms for TMT-A, TMT-B, and derived measures TMT B-A, TMT B/A, and TMT-β were produced. Models were assessed for pertinent linear, curvilinear, or interaction effects of age, education, and sex. We evaluated and compared our norms to published North American TMT norms. <b>Results:</b> Higher age was linearly associated with lower performance on all measures. No sex differences were found. We found a reduced positive association with education on test performance at higher age. However, this interaction effect was found to be driven by participants with low education. Our validated proposed norms showed a better fit to observed data than the existing norms. <b>Conclusion:</b> The norms were adjusted for age on all measures. Norms without age adjustment are made available for TMT B/A due to a slightly better fit of this model. The results indicate (i) that only processing speed and not set-shifting declines with age and (ii) that the selection process for education might be more important than actual education for older-age performance.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-24"},"PeriodicalIF":3.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143525347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ability of the D-KEFS Color-Word Interference Test as an embedded measure to identify noncredible neurocognitive performance in personal injury litigants.","authors":"George K Henry","doi":"10.1080/13854046.2025.2473143","DOIUrl":"https://doi.org/10.1080/13854046.2025.2473143","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the ability of the Color-Word Interference Test (CWIT) from the Delis-Kaplan Executive Function System (D-KEFS) to predict noncredible neurocognitive dysfunction in a large mixed sample of personal injury litigants. <b>Methods:</b> Participants included 100 adults who underwent a comprehensive neuropsychological examination. Criterion groups were formed based upon their performance on stand-alone measures of cognitive performance validity (PVT). <b>Results:</b> Participants failing the Word Memory Test and trial one of the Test of Memory Malingering performed significantly worse across all four CWIT trials compared to participants who passed both. Receiver operating curve characteristic analysis revealed that a Total ACSS ≤ 34 (sum total of age-corrected scaled scores across all four trials) was the best predictor of PVT status at .90 specificity and .65 sensitivity. Multivariate logistic regression did not add to classification accuracy. <b>Conclusions:</b> Noncredible executive functioning should be a consideration in personal injury litigants who score ≤ 34 across all four trials of the CWIT.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-14"},"PeriodicalIF":3.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Esteban Puente-López, David Pina, Robert D Shura, Reyes Lopez-López, Thomas Merten, Begoña Martínez-Jarreta
{"title":"The risk of bias - symptom and performance validity (RoB-spv): a risk of bias checklist for systematic review and meta-analysis.","authors":"Esteban Puente-López, David Pina, Robert D Shura, Reyes Lopez-López, Thomas Merten, Begoña Martínez-Jarreta","doi":"10.1080/13854046.2025.2469354","DOIUrl":"https://doi.org/10.1080/13854046.2025.2469354","url":null,"abstract":"<p><p><b>Objective:</b> The analysis of risk of bias in systematic reviews (SR) and meta-analyses (MA) is a fundamental task to ensure the correct synthesis of results. To carry out this task, specific tools must be used for each research design of the studies analyzed. The choice of an appropriate tool is currently a challenge for researchers developing SR and MA in the area of symptom and performance validity because the research designs used have been created specifically for this field. Although these designs can be integrated within the classic classifications, they present a number of particular characteristics that are not reflected in any of the current risk of bias analysis tools. The aim of this study is to design a checklist specifically for systematic review/meta-analysis focused on validity tests. <b>Methods:</b> The checklist was developed through objective review of the existing evidence, development of checklist items, and refinement by external feedback and performance analysis. <b>Results:</b> The checklist is composed of four sections: Clinical comparison group selection, sources of bias in either simulation or criterion group designs, and overall assessment of the study. Inter-rater reliability was assessed with a sample of 20 studies, resulting in good to excellent intraclass correlation coefficients for most items. <b>Conclusions:</b> The checklist seeks to fill an important gap in the literature by serving as an assessment tool that improves the reliability of evidence synthesis in symptom and performance validity studies. This instrument facilitates the development of SR and MA that meet international standards, improving methodological rigor and reliability in the forensic setting.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-25"},"PeriodicalIF":3.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143525350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Demographically-adjusted norms for Rey-Osterrieth Complex Figure Test (RCFT) for Sri Lankan adults.","authors":"Tharaka Lagath Dassanayake, Dewasmika Indrapali Ariyasinghe, Anuradha Baminiwatta","doi":"10.1080/13854046.2025.2471116","DOIUrl":"https://doi.org/10.1080/13854046.2025.2471116","url":null,"abstract":"<p><p><b>Objective:</b> The aim of this study was to create demographically-adjusted norms for Rey-Osterrieth Complex Figure Test (RCFT) for Sri Lankan adults. <b>Method:</b> Four-hundred and twenty-two healthy, adult participants (age: 19-83 years, education: 5-23 years, 202 men) underwent the RCFT copy, 3-min and 30-minute-recall trials. Age- and education-stratified percentile-based norms and demographically-adjusted regression-based norms were created for copy-trial scores and recall trial scores, respectively. <b>Results:</b> There was a ceiling effect of the copy scores where the maximum possible score (i.e. 36) reached between 25th and 90th percentile depending of the age and the education band. Age, years of education and sex accounted for 25.0% of the variance of the RCFT 3-min-recall scores (adjusted <i>R<sup>2</sup></i> = 0.25, <i>p</i> < .0001). The age and years of education explained 25.1% of the variance of the 30-minute recall score (adjusted <i>R<sup>2</sup></i> = 0.251, <i>p</i> < .0001). Age accounted for 7%-8% and years of education accounted for 10%-11% of the variances of the recall trial scores. Sex only affected the 3-min recall scores and accounted for only about 1% of the variance. No significant differences in RCFT scores were observed among different ethnic groups. <b>Conclusions:</b> These RCFT norms for Sri Lankan adults fill a hiatus in neuropsychological assessment of visuospatial construction and visual memory. The percentile tables and accompanying software-based calculator with embedded regression equations help clinicians more readily interpret individual test results and account for the RCFT performance variability introduced by demographic variables.</p>","PeriodicalId":55250,"journal":{"name":"Clinical Neuropsychologist","volume":" ","pages":"1-14"},"PeriodicalIF":3.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143525344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}