Development of the Cognitive Test for Severe Dementia

2015 ◽  
Vol 40 (1-2) ◽  
pp. 94-106 ◽  
Author(s):  
Hiroyuki Tanaka ◽  
Yuma Nagata ◽  
Masayasu Uematsu ◽  
Takashi Takebayashi ◽  
Keisuke Hanada ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Rating Scale ◽  
Reliability And Validity ◽  
Cognitive Test ◽  
Cognitive Measures ◽  
Severe Dementia ◽  
Cognitive Domains ◽  
Dementia Patients ◽  
Floor Effects ◽  
Test Retest Reliability

Background/Aims: Existing cognitive measures for moderate-to-severe dementia have shown floor effects and an inability to assess the remaining cognitive function, especially for profound dementia. Methods: We constructed the Cognitive Test for Severe Dementia (CTSD), which consists of 13 items covering 7 cognitive domains, and examined its reliability and validity. Results: Cronbach's α in severe dementia participants was 0.896. Interrater and test-retest reliability were 0.961 and 0.969, respectively. The CTSD showed a significant correlation with 3 other measures of cognitive function (Mini-Mental State Examination, Severe Cognitive Impairment Rating Scale, and Hasegawa Dementia Scale-Revised: r values = 0.870-0.922, p values <0.001). While the other measures showed floor effects, the CTSD did not. Conclusion: The CTSD was able to sensitively capture the remaining cognitive function in severe dementia patients when compared with other cognitive tests.

scholarly journals A Study of the Effectiveness Verification of Computer-Based Dementia Assessment Contents (Co-Wis): Non-Randomized Study

2020 ◽  
Vol 10 (5) ◽  
pp. 1579
Author(s):  
Seung Il Song ◽  
Hyun Seok Jeong ◽  
Jung Pil Park ◽  
Ji Yean Kim ◽  
Dai Seg Bai ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Concurrent Validity ◽  
Rating Scale ◽  
High Reliability ◽  
Reliability And Validity ◽  
Cognitive Test ◽  
Retest Reliability ◽  
Computer Based ◽  
Neuropsychological Assessments ◽  
Test Retest Reliability

Computer-based neuropsychological assessments have many advantages over traditional neuropsychological assessments. However, limited data are available on the validity and reliability of computer-based assessments. The purpose of this study was to examine the reliability and validity of computer-based dementia assessment contents (Co-Wis). This study recruited 113 participants from Yeungnam University Medical Center in Daegu from June 2019 to December 2019 and received ethical approval. Participants were evaluated using standard and objective dementia cognitive test tools such as the Korean version of the Mini-Mental State Examination (K-MMSE), the Clinical Dementia Rating Scale (CDR), and the Standardized Seoul Neuropsychological Screening Battery-II (SNSB-II). To verify the effectiveness of Co-Wis, the concurrent validity, test–retest reliability (Pearson’s correlation coefficients), construct validity (Factor analysis), and signal detection analysis (ROC curve) were used. In most of the Co-Wis subtests, the concurrent validity and test–retest reliability showed statistically significant correlations (p < 0.05, p < 0.01). The factor analysis showed that Co-Wis assessed the most major cognitive areas (Tucker–Lewis Index (TLI) = 0.876, Comparative Fit Index (CFI) = 0.897, RMSEA = 0.88). Thus, Co-Wis appears clinically applicable and with high reliability and validity. In the future, we should develop tests to evaluate both standard data and big data-based machine learning.

Reliability and Validity of the Hierarchic Dementia Scale

1994 ◽  
Vol 6 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Lisa Rönnberg ◽  
Kjerstin Ericsson
Keyword(s):  
Cognitive Deficits ◽  
Concurrent Validity ◽  
Interrater Reliability ◽  
Mixed Type ◽  
Reliability And Validity ◽  
Kappa Coefficient ◽  
Severe Dementia ◽  
Valid Instrument ◽  
Test Retest Reliability

The aim of the study was to apply a method for measuring cognitive functioning in severely demented patients. Reliability and validity of the Hierarchic Dementia Scale (HDS) were tested. Fifty patients with dementia of the Alzheimer's type (DAT), multi-infarct dementia (MID), and dementia of mixed type (MIX) were studied. The interrater reliability was satisfactory as estimated by means of a kappa coefficient. The test retest reliability was rs = .96. The concurrent validity of the HDS, as measured by the correlation between the HDS and the MMSE, was rs = .86, and between the HDS and the CDR was rs = −.71. The results indicate that HDS is a useful and valid instrument for determination of the heterogeneous cognitive deficits in severe dementia.

The Mathematics Anxiety Rating Scale, a Brief Version: Psychometric Data

2003 ◽  
Vol 92 (1) ◽  
pp. 167-173 ◽  
Author(s):  
Richard M. Suinn ◽  
Elizabeth H. Winston
Keyword(s):  
Mathematics Anxiety ◽  
Rating Scale ◽  
Reliability And Validity ◽  
Validity Data ◽  
Psychometric Data ◽  
Major Scale ◽  
Administration Time ◽  
High Internal Consistency ◽  
Test Retest Reliability ◽  
Item Scale

As a measure of mathematics anxiety, the Mathematics Anxiety Rating Scale (MARS) has been a major scale used for research and clinical studies since 1972. Despite the usefulness of the original scale, researchers have sought a shorter version of the scale partly to reduce the administration time of the original 98-item scale. This study created a shorter version of the MARS and provides reliability and validity information for the new version. The Cronbach alpha of .96 indicated high internal consistency, while the test-retest reliability for the MARS 30-item was .90 ( p < .001). The validity data confirm that the MARS 30-item test is comparable to the original MARS 98-irem scale.

scholarly journals Reliability and Validity of the Dyskinesia Impairment Scale in Children and Young Adults with Inherited or Idiopathic Dystonia

2020 ◽  
Vol 9 (8) ◽  
pp. 2597
Author(s):  
Annika Danielsson ◽  
Inti Vanmechelen ◽  
Cecilia Lidbeck ◽  
Lena Krumlinde-Sundholm ◽  
Els Ortibus ◽  
...  
Keyword(s):  
Young Adults ◽  
Rating Scale ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Children And Youth ◽  
Rater Reliability ◽  
Retest Reliability ◽  
Children And Young Adults ◽  
Test Retest Reliability ◽  
Idiopathic Dystonia

Background: The Dyskinesia Impairment Scale (DIS) is a new assessment scale for dystonia and choreoathetosis in children and youth with dyskinetic cerebral palsy. Today, the Burke–Fahn–Marsden Dystonia Rating Scale (BFM) is mostly used to assess dystonia in children with inherited dystonia. The aim of this study was to assess reliability and validity of the DIS in children and youth with inherited or idiopathic dystonia. Methods: Reliability was measured by (1) the intraclass correlation coefficients (ICCs) for inter-rater and test-retest reliability, as well as (2) standard error of measurement (SEM) and minimal detectable difference (MDD). For concurrent validity of the DIS-dystonia subscale, the BFM was administered. Results: In total, 11 males and 9 females (median age 16 years and 7 months, range 6 to 24 years) were included. For inter-rater reliability, the ICCs for the DIS total score and the dystonia and choreoathetosis subscale scores were 0.83, 0.87, and 0.71, respectively. For test-retest reliability, the ICCs for the DIS total score and the dystonia and choreoathetosis subscale scores were 0.95, 0.88, and 0.93, respectively. The SEM and MDD for the total DIS were 3.98% and 11.04%, respectively. The Spearman correlation coefficient between the dystonia subscale and the BFM was 0.88 (p < 0.01). Conclusions: Good to excellent inter-rater, test-retest reliability, and validity were found for the total DIS and the dystonia subscale. The choreoathetosis subscale showed moderate inter-rater reliability and excellent test-retest reliability. The DIS may be a promising tool to assess dystonia and choreoathetosis in children and young adults with inherited or idiopathic dystonia.

scholarly journals Validation of the Korean Version of the Anosognosia Questionnaire for Dementia

2021 ◽  
Vol 18 (4) ◽  
pp. 324-331
Author(s):  
Gi Hwan Byeon ◽  
Woo Jin Kim ◽  
Min Soo Byun ◽  
Jun Ho Lee ◽  
So Yeon Jeon ◽  
...  
Keyword(s):  
Daily Living ◽  
Rating Scale ◽  
Depression Scale ◽  
Reliability And Validity ◽  
Epidemiological Studies ◽  
Activity Of Daily Living ◽  
Retest Reliability ◽  
Korean Version ◽  
Basic Activity ◽  
Test Retest Reliability

Objective Anosognosia is a common phenomenon in individuals with dementia. Anosognosia Questionnaire for dementia (AQ-D) is a well-known scale for evaluating anosognosia. This study aimed to establish a Korean version of the AQ-D (AQ-D-K) and to evaluate the reliability and validity of the AQ-D-K in patients with Alzheimer’s disease (AD) dementia.Methods We translated the original English version of AQ-D into Korean (AQ-D-K). Eighty-four subjects with very mild or mild AD dementia and their caregivers participated. Reliability of AQ-D-K was assessed by internal consistency and one-month test-retest reliability. Construct validity and concurrent validity were also evaluated.Results Internal consistencies of the AQ-D-K patient form and caregiver form were high (Cronbach alpha 0.95 and 0.93, respectively). The test-retest reliability of AQ-D-K measured by intra-class correlation coefficient was 0.84. Three factors were identified: 1) anosognosia of instrumental activity of daily living; 2) anosognosia basic activity of daily living; and 3) anosognosia of depression and disinhibition. AQ-D-K score was significantly correlated with the clinician-rated anosognosia rating scale (ARS), center for epidemiological studies-depression scale (CES-D) and state-trait anxiety inventory (STAI).Conclusion The findings suggest that the AQ-D-K is a reliable and valid scale for evaluating anosognosia for AD dementia patients using Korean language.

scholarly journals Physical Activity in Severe Dementia Is Associated With Agitation Rather Than Cognitive Function

2019 ◽  
Vol 35 ◽  
pp. 153331751987139 ◽  
Author(s):  
Daiki Ishimaru ◽  
Hiroyuki Tanaka ◽  
Yuma Nagata ◽  
Shinichi Takabatake ◽  
Takashi Nishikawa
Keyword(s):  
Physical Activity ◽  
Cognitive Function ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Cross Sectional Study ◽  
Cognitive Test ◽  
Clinical Dementia Rating ◽  
Severe Dementia ◽  
Cross Sectional ◽  
Moderate Dementia

Background: The authors examined associations between physical activity, cognitive function, activities of daily living, and behavioral and psychological dementia symptoms (BPSD) in severe and moderate dementia. Methods: A cross-sectional study was conducted to assess severe and moderate dementia groups according to the Clinical Dementia Rating. An actigraphy measured physical activity. Other measures included Mini-Mental State Examination, Cognitive Test for Severe Dementia, Hyogo Activities of Daily Living Scale, and Neuropsychiatric Inventory-Nursing Home. Results: Sixty-three participants were assessed (mean age = 89.3 ± 6.4). Physical activity was not associated with cognitive function among participants with severe dementia, although there was a trend-level association with cognitive function among those with moderate dementia. Physical activity was significantly associated with BPSD, specifically agitation/aggression symptoms, for participants with severe dementia, and there was a trend-level association with anxiety for participants with moderate dementia. Conclusions: Physical activity appears to be associated with BPSD among individuals in the advanced stages of dementia.

scholarly journals The Reliability and Validity of the Norwegian Version of the Quality of Life in Late-Stage Dementia Scale

2015 ◽  
Vol 40 (3-4) ◽  
pp. 233-242 ◽  
Author(s):  
Irene Røen ◽  
Geir Selbæk ◽  
Øyvind Kirkevold ◽  
Knut Engedal ◽  
Anners Lerdal ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Late Stage ◽  
Rating Scale ◽  
Strong Association ◽  
Nursing Home Residents ◽  
Reliability And Validity ◽  
Clinical Dementia Rating ◽  
Norwegian Version ◽  
Test Retest Reliability

Aim: To translate the Quality of Life in Late-Stage Dementia (QUALID) Scale into Norwegian, and to evaluate the test-retest reliability and validity of the scale. Method: QUALID was translated according to standardised procedures. Residents with dementia living in nursing homes were included in the study and assessed using QUALID, Cornell Scale for Depression in Dementia, Neuropsychiatric Inventory, Physical Self-Maintenance Scale and Clinical Dementia Rating Scale. Results: Cronbach's α of QUALID was 0.79. In the reliability study, the intra-class correlation was 0.83. The validity study showed a strong association between depressive symptoms and QUALID, and a moderate association between QUALID and assessments of level of functioning and agitation. Conclusions: The Norwegian version of QUALID is a reliable and valid scale for assessing quality of life in nursing home residents with dementia.

Delirium in older adults: assessment scales review

2011 ◽  
Vol 26 (S2) ◽  
pp. 486-486
Author(s):  
S. Martins ◽  
M.R. Simões ◽  
L. Fernandes
Keyword(s):  
Rating Scale ◽  
Reliability And Validity ◽  
Rapid Onset ◽  
Assessment Method ◽  
Screening Tests ◽  
Cognitive Test ◽  
Cognitive Screening ◽  
Delirium Assessment ◽  
Altered Level ◽  
Assessment Scales

IntroductionDelirium is characterized by the rapid onset of symptoms which fluctuate, with an altered level of consciousness, global disturbance of cognition, perceptual abnormalities and evidence of a physical cause (DSM-IV-R, 2002).AimTo review the characteristics and psychometric properties of thirteen Delirium scales available in research and clinical practice.MethodsMEDLINE database was used to identify the delirium scales in use (1990–2010), using the keywords: delirium, confusion, questionnaires, scales, severity and screening. Only validation studies were included. Exclusion criteria were children and alcohol/drug delirium assessment scales. This study included seven screening scales: Confusion Assessment Method, Intensive Care Delirium Screening Checklist, Delirium Symptom Interview, NEECHAM Confusion Scale, Cognitive Test for Delirium, Delirium Observation Screening, Nursing Delirium Screening Scale and seven severity scales: Delirium Rating Scale, Memorial Delirium Assessment Scale, Confusional State Evaluation, Delirium Severity Scale, Delirium Index and Delirium-O-Meter.ResultsThe majority of scales were based on the Diagnosis Statistical Manual Criteria as well as on a review of selected symptoms of Delirium informed by systematic clinical observation and formal brief assessment of mental status. In most of the studies, for psychometric analysis, the inter-rater reliability and validity with severity of Delirium assessment and cognitive screening tests were used.ConclusionBearing in mind the recent review studies included, we can conclude that CAM is the most widely used instrument for delirium assessment.

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