ERRATUM

2002 ◽  
Vol 8 (3) ◽  
pp. 481-481
Author(s):  
WILLIAM B. BARR ◽  
MICHAEL McCREA
Keyword(s):  
Confidence Interval ◽  
Sensitivity And Specificity ◽  
Neurocognitive Testing ◽  
Reliable Change ◽  
Retest Reliability ◽  
Sports Concussion ◽  
The Third ◽  
Test Retest Reliability

The following is a correction for an error that occurred in the Journal of the International Neuropsychological Society, Vol. 7, No. 6. The error occurred in the article titled “Sensitivity and specificity of standardized neurocognitive testing immediately following sports concussion,” pp. 693–702, by Barr and McCrea. On page 696, under the subheading “Test-Retest Reliability and Reliable Change Cut-off Scores”, the confidence interval in the third sentence should read “−2.21, +2.59”, rather than “±2.59”.

scholarly journals European Portuguese Version of the Clinical Frailty Scale: Translation, Cultural Adaptation and Validation Study

2021 ◽  
Vol 34 (13) ◽  
Author(s):  
Mário Pereira Pinto ◽  
Sónia Martins ◽  
Edgar Mesquita ◽  
Lia Fernandes
Keyword(s):  
Sensitivity And Specificity ◽  
Validation Study ◽  
Convergent Validity ◽  
Outpatient Clinics ◽  
Clinical Frailty Scale ◽  
Retest Reliability ◽  
European Portuguese ◽  
Tilburg Frailty Indicator ◽  
Test Retest Reliability ◽  
Frailty Indicator

Introduction: This study aims to describe the translation and adaptation of the European Portuguese Clinical Frailty Scale and assess its convergent validity and test-retest reliability.Material and Methods: This validation study included a sample of elderly people admitted in two convalescence units from the National Network of Integrated Continuous Care in Northern Portugal and followed in two outpatient clinics of social solidarity institutions. Convergent validity of the scale was evaluated, against Tilburg Frailty Indicator. Test-retest reliability, sensitivity and specificity were assessed.Results: Overall, 51 patients were included (mean age = 78 years old). The Clinical Frailty Scale identified 43.1% patients with frailty. Kappa values for test-retest reliability (non-frail/frail) was 1.00. The intraclass correlation coefficient for the 9-point total scale was 0.999. A correlation between Clinical Frailty Scale and Tilburg Frailty Indicator was also found (rs = 0.683; p < 0.001). The Cohen’s kappa coefficient was 0.423 in the agreement analysis between these scales. The results for sensitivity and specificity defined that 62.0% of patients were true positives and 81.8% true negatives. The scale accuracy determined by the receiver operating characteristics curve analysis was 0.782.Discussion: This scale showed an excellent test-retest reliability. Robust results on convergent validity were also achieved, with a moderate correlation and agreement with the Tilburg Frailty Indicator, showing good sensitivity and accuracy, as well as high specificity.Conclusion: This version has an excellent test-retest reliability and good convergent validity, and is both a reliable and valid test for application in clinical practice for assessing Portuguese elderly population admitted in convalescence units and outpatient clinics.

scholarly journals Examining Test-Retest Reliability and Reliable Change for Cognition Endpoints for the CENTER-TBI Neuropsychological Test Battery

2020 ◽  
Vol 11 ◽  
Author(s):  
Jonas Stenberg ◽  
Justin E. Karr ◽  
Rune H. Karlsen ◽  
Toril Skandsen ◽  
Noah D. Silverberg ◽  
...  
Keyword(s):  
Neuropsychological Test ◽  
Test Battery ◽  
Reliable Change ◽  
Retest Reliability ◽  
Neuropsychological Test Battery ◽  
Test Retest Reliability

Establishing Test–Retest Reliability and Reliable Change for the King–Devick Test in High School Athletes

2019 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
R. J. Elbin ◽  
Philip Schatz ◽  
Samantha Mohler ◽  
Tracey Covassin ◽  
Jesse Herrington ◽  
...  
Keyword(s):  
High School ◽  
High School Athletes ◽  
Reliable Change ◽  
Retest Reliability ◽  
Test Retest Reliability

Feasibility and Reliability of a Repeated Sprint Test in Children Age 6 to 8 Years

2011 ◽  
Vol 23 (4) ◽  
pp. 549-559 ◽  
Author(s):  
Abdou Temfemo ◽  
Thierry Lelard ◽  
Christopher Carling ◽  
Samuel Honoré Mandengue ◽  
Mehdi Chlif ◽  
...  
Keyword(s):  
Young Children ◽  
Anaerobic Power ◽  
Age And Gender ◽  
Retest Reliability ◽  
Sprint Time ◽  
The Third ◽  
Repeated Sprint ◽  
And Gender ◽  
Test Retest Reliability ◽  
High Test

This study investigated the feasibility and reliability of a 12 × 25-m repeated sprint test with sprints starting every 25-s in children aged 6–8 years (36 boys, 41 girls). In all subjects, total sprint time (TST) demonstrated high test-retest reliability (ICC: r = .98; CV: 0.7% (95% CI: 0.6–0.9)). While sprint time varied over the 12 sprints in all subjects (p < .001) with a significant increase in time for the third effort onwards compared with the first sprint (p < .001), there was no difference in performance between genders. In all subjects, TST decreased with age (p < .001) and was accompanied by an increase in estimated anaerobic power (p < .001) but also in sprint time decrement percentage (p < .001). Gender did not effect these changes. The present study demonstrates the practicability and reliability of a repeated sprint test with respect to age and gender in young children.

scholarly journals RELIABILITY AND VALIDITY OF HYPOTHETICAL SCENARIOS FOR ESTIMATING WILLINGNESS TO PAY (WTP) PER QUALITY ADJUSTED LIFE YEAR (QALY) IN INDONESIA SETTING

2017 ◽  
Vol 9 (12) ◽  
pp. 288
Author(s):  
Susi Ari Kristina ◽  
Dwi Endarti ◽  
Tri Murti Andayani ◽  
M. Rifqi Rokhman
Keyword(s):  
Sensitivity And Specificity ◽  
Convergent Validity ◽  
Terminal Illness ◽  
Validity And Reliability ◽  
Treatment Scenario ◽  
Predictive Values ◽  
Retest Reliability ◽  
Group Validity ◽  
Significant Difference ◽  
Test Retest Reliability

Objective: To estimate validity and reliability of WTP questionnaire which WTP value can be taken as an indication of the monetary value of health gains, which may carry information regarding the appropriate height of the cost-effectiveness threshold.Methods: Three hundred respondents, in Yogyakarta province, Indonesia, were interviewed during June 2017. We examine a value of WTP associated with the following scenarios: 1) improving moderate condition; 2) extending life during terminal illness, and 3) lifesaving. The interview ascertained maximum hypothetical WTP for one QALY using a dichotomous bidding format with an open-ended final question, along with questions about the socio-economic factors. Concerning validity, the WTP of the 3 versions of hypothetical scenarios were compared as known-group validity and analysis of the sensitivity and specificity was performed. Test-retest reliability and alpha Cronbach were employed to measure internal consistency.Results: Analysis generally confirmed the validity and reliability of the WTP hypothetical scenarios. In terms of known group validity, there was significant difference across two scenarios (treatment v. s lifesaving), but no significant difference between mean WTP for treatment and terminal illness was found. Mean WTP for terminal illness (38 Million IDR) and lifesaving scenario (16 Million IDR) was significantly higher than that of treatment scenario (14 Million IDR). The WTP instrument showed good convergent validity (r=0.784), when comparing correlation between WTP value and utility score. Estimation of scenario’s sensitivity and specificity in deriving expected WTP were 70.33 % and 38.98 %, respectively. The positive and negative predictive values were 64 % and 46 %. The test-retest reliability of WTP values indices excellent stability and reliability of the instrument with Spearman’s rank correlation coefficient of 0.816 (p<0.001)Conclusion: This study demonstrated that the WTP instrument is feasible and relatively reliable for measuring the WTP values in Indonesia. For wider application of the instrument, its validity should be investigated further. Meanwhile, adoption of WTP as an empirical evidence of societal values is encouraged. 

scholarly journals Test–Retest Reliability of Computerized Neurocognitive Testing in Youth Ice Hockey Players

2016 ◽  
Vol 31 (4) ◽  
pp. 305-312 ◽  
Author(s):  
Melissa N. Womble ◽  
Erin Reynolds ◽  
Philip Schatz ◽  
Kishan M. Shah ◽  
Anthony P. Kontos
Keyword(s):  
Ice Hockey ◽  
Neurocognitive Testing ◽  
Retest Reliability ◽  
Hockey Players ◽  
Test Retest Reliability

German validation of the Conners Adult ADHD Rating Scales (CAARS) II: Reliability, validity, diagnostic sensitivity and specificity

2012 ◽  
Vol 27 (5) ◽  
pp. 321-328 ◽  
Author(s):  
H. Christiansen ◽  
B. Kis ◽  
O. Hirsch ◽  
S. Matthies ◽  
J. Hebebrand ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Adult Adhd ◽  
Rating Scales ◽  
Self Report ◽  
Self Concept ◽  
Operating Characteristics ◽  
Retest Reliability ◽  
Healthy Control ◽  
Test Retest Reliability ◽  
Adhd Rating Scales

AbstractBackgroundThe German version of the Conners Adult ADHD Rating Scales (CAARS) has proven to show very high model fit in confirmative factor analyses with the established factors inattention/memory problems, hyperactivity/restlessness, impulsivity/emotional lability, and problems with self-concept in both large healthy control and ADHD patient samples. This study now presents data on the psychometric properties of the German CAARS-self-report (CAARS-S) and observer-report (CAARS-O) questionnaires.MethodsCAARS-S/O and questions on sociodemographic variables were filled out by 466 patients with ADHD, 847 healthy control subjects that already participated in two prior studies, and a total of 896 observer data sets were available. Cronbach's-alpha was calculated to obtain internal reliability coefficients. Pearson correlations were performed to assess test-retest reliability, and concurrent, criterion, and discriminant validity. Receiver Operating Characteristics (ROC-analyses) were used to establish sensitivity and specificity for all subscales.ResultsCoefficient alphas ranged from .74 to .95, and test-retest reliability from .85 to .92 for the CAARS-S, and from .65 to .85 for the CAARS-O. All CAARS subscales, except problems with self-concept correlated significantly with the Barrett Impulsiveness Scale (BIS), but not with the Wender Utah Rating Scale (WURS). Criterion validity was established with ADHD subtype and diagnosis based on DSM-IV criteria. Sensitivity and specificity were high for all four subscales.ConclusionThe reported results confirm our previous study and show that the German CAARS-S/O do indeed represent a reliable and cross-culturally valid measure of current ADHD symptoms in adults.

Validation of the German Version of the Brief Assessment of Cognition in Schizophrenia (BACS) – Preliminary Results

2010 ◽  
Vol 26 (2) ◽  
pp. 74-77 ◽  
Author(s):  
G. Sachs ◽  
B. Winklbaur ◽  
R. Jagsch ◽  
R.S.E. Keefe
Keyword(s):  
Cognitive Functioning ◽  
Sensitivity And Specificity ◽  
German Version ◽  
Retest Reliability ◽  
Preliminary Results ◽  
Brief Assessment ◽  
Good Ability ◽  
Reliability Sensitivity ◽  
Test Retest Reliability ◽  
High Test

AbstractThe German version of the BACS showed high test-retest reliability. Sensitivity and specificity scores demonstrated good ability to differentiate between patients and controls. The study suggests that the German Version of the BACS is a useful scale to evaluate cognitive functioning.

scholarly journals Test–Retest Reliability and Reliable Change Estimates for Four Mobile Cognitive Tests Administered Virtually in Community-Dwelling Adults

2021 ◽  
Vol 12 ◽  
Author(s):  
Ryan Van Patten ◽  
Grant L. Iverson ◽  
Mélissa A. Muzeau ◽  
Heidi A. VanRavenhorst-Bell
Keyword(s):  
Working Memory ◽  
Reaction Time ◽  
Impulse Control ◽  
Community Dwelling ◽  
Cognitive Test ◽  
Inspection Time ◽  
Reliable Change ◽  
Retest Reliability ◽  
Intraclass Correlations ◽  
Test Retest Reliability

Objective: Remote mobile cognitive testing (MCT) is an expanding area of research, but psychometric data supporting these measures are limited. We provide preliminary data on test–retest reliability and reliable change estimates in four MCTs from SWAY Medical, Inc.Methods: Fifty-five adults from the U.S. Midwest completed the MCTs remotely on their personal mobile devices once per week for 3 consecutive weeks, while being supervised with a video-based virtual connection. The cognitive assessment measured simple reaction time (“Reaction Time”), go/no-go response inhibition (“Impulse Control”), timed visual processing (“Inspection Time”), and working memory (“Working Memory”). For each cognitive test except Working Memory, we analyzed both millisecond (ms) responses and an overall SWAY composite score.Results: The mean age of the sample was 26.69years (SD=9.89; range=18–58). Of the 55 adults, 38 (69.1%) were women and 49 (89.1%) used an iPhone. Friedman’s ANOVAs examining differences across testing sessions were nonsignificant (ps&gt;0.31). Intraclass correlations for Weeks 1–3 were: Reaction Time (ms): 0.83, Reaction Time (SWAY): 0.83, Impulse Control (ms): 0.68, Impulse Control (SWAY): 0.80, Inspection Time (ms): 0.75, Inspection Time (SWAY): 0.75, and Working Memory (SWAY): 0.88. Intraclass correlations for Weeks 1–2 were: Reaction Time (ms): 0.75, Reaction Time (SWAY): 0.74, Impulse Control (ms): 0.60, Impulse Control (SWAY): 0.76, Inspection Time (ms): 0.79, Inspection Time (SWAY): 0.79, and Working Memory (SWAY): 0.83. Natural distributions of difference scores were calculated and reliable change estimates are presented for 70, 80, and 90% CIs.Conclusion: Test–retest reliability was adequate or better for the MCTs in this virtual remote testing study. Reliable change estimates allow for the determination of whether a particular level of improvement or decline in performance is within the range of probable measurement error. Additional reliability and validity data are needed in other age groups.

scholarly journals Enabling people with communication and cognitive impairments to provide feedback on service satisfaction: development and reliability testing of an adapted pictorial questionnaire

2020 ◽  
Vol 27 (7) ◽  
pp. 1-15
Author(s):  
Katrina Clarkson ◽  
Lynne Turner Stokes ◽  
Carol Sacchett ◽  
Stephen Ashford
Keyword(s):  
Patient Satisfaction ◽  
Brain Injury ◽  
Confidence Interval ◽  
Service Satisfaction ◽  
Retest Reliability ◽  
Communication Difficulties ◽  
Specialist Rehabilitation ◽  
Communication Impairments ◽  
The Uk ◽  
Test Retest Reliability

Introduction/aims Evaluation of patient satisfaction with health services is mandatory within the UK, but patients with communication difficulties are often excluded by their inability to complete written questionnaires. This study examines the test–retest reliability and agreement of an adapted, pictorial patient satisfaction questionnaire, based on the Talking Mats technique. Methods A total of 26 participants, who had a range of communication impairments resulting from brain injury, completed two questionnaires while in specialist rehabilitation: a standard written and adapted pictorial questionnaire, at two time points to evaluate test–retest reliability. Agreement between the two questionnaire formats was also examined. Results Test–retest reliability in overall scores between Time 1 and 2 was substantial for both the adapted pictorial questionnaire (k=0.72 [95% confidence interval 0.388, 0.76]) and the standard written questionnaire (ϰ=0.78 [95% confidence interval 0.74, 0.82]). Overall agreement between the two techniques was ϰ=0.76 (95% confidence interval 0.73, 0.79). Eighty-six per cent of questions for patients with aphasia showed at least ‘moderate’ agreement between the two questionnaire types compared with only 67% in participants with cognitive communication disorder. Conclusions The adapted pictorial questionnaire is a reliable tool for people with brain injury who have aphasia, enabling some patients to provide service satisfaction feedback who would have otherwise been excluded using a written questionnaire.

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