Consistency of Fundamental Frequency and Perturbation in Repeated Phonations of Sustained Vowels, Reading, and Connected Speech

1990 ◽  
Vol 55 (2) ◽  
pp. 360-363 ◽  
Author(s):  
James L. Fitch
Keyword(s):  
Young Adults ◽  
Correlation Coefficient ◽  
Fundamental Frequency ◽  
Spontaneous Speech ◽  
The Other ◽  
Acoustic Measurement ◽  
Vowel Production ◽  
Connected Speech ◽  
Retest Reliability ◽  
Test Retest Reliability

The purpose of this study was to determine consistency of the acoustic measurement of fundamental frequency (f 0 ) and f 0 perturbation using the Visi-Pitch. Samples of speech including a reading passage, vowels, and spontaneous speech were recorded for 12 normal young adults (6 men and 6 women). The results indicated that test-retest reliability was highest for the reading passage. The measurements of fundamental frequency for reading and spontaneous speech were very similar, but vowel production was, on average, higher in frequency than the other contexts. Test-retest measures of perturbation using the Visi-Pitch did not have a high correlation coefficient. Perturbation measures must be interpreted cautiously because of the influence of frequency.

Test-Retest-Reliability of Computer-Based Metamorphopsia Measurement in Macular Diseases

2020 ◽  
Author(s):  
Daniela Claessens ◽  
Alexander K. Schuster ◽  
Ronald V. Krüger ◽  
Marian Liegl ◽  
Laila Singh ◽  
...  
Keyword(s):  
Macular Edema ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Measuring Method ◽  
Repeated Measurements ◽  
Retest Reliability ◽  
Macular Diseases ◽  
Computer Based ◽  
Test Retest Reliability

AbstractIn this study, the test-retest-reliability as one aspect of reliability of metamorphopsia measurements using a computer-based measuring method was determined in patients with macular diseases. Metamorphopsia amplitude, position, and area were quantified using AMD – A Metamorphopsia Detector software (app4eyes GmbH & Co. KG, Germany) in patients with diabetic, myopic, or uveitic macular edema, intermediate or neovascular age-associated macular degeneration, epiretinal membrane, vitelliform maculopathy, Irvine-Gass syndrome, or macular edema due to venous retinal occlusion. The intraclass correlation coefficient (ICC) was calculated in order to determine the repeatability of two repeated measurements and was used as an indicator of the reliability of the measurements. In this study, metamorphopsia measurements were conducted on 36 eyes with macular diseases. Metamorphopsia measurements made using AMD – A Metamorphopsia Detector software were highly reliable and repeatable in patients with maculopathies. The intraclass correlation coefficient of all indices was excellent (0.95 – 0.97). For diseases of the vitreoretinal interface or macular diseases with intra- or subretinal edema, this metamorphopsia measurement represents a supplement for visual function testing in the clinic, as well as in clinical studies.

scholarly journals Translation, Cultural Adaptation and Validation of the Simple Shoulder Test to Spanish

2014 ◽  
Vol 2 (12_suppl4) ◽  
pp. 2325967114S0023
Author(s):  
Francisco Arcuri ◽  
Fernando Barclay ◽  
Ivan Nacul
Keyword(s):  
Correlation Coefficient ◽  
Internal Consistency ◽  
Cultural Adaptation ◽  
Reliability And Validity ◽  
Expert Committee ◽  
Internal Reliability ◽  
Simple Shoulder Test ◽  
Retest Reliability ◽  
Test Translation ◽  
Test Retest Reliability

Background: The validation of widely used scales facilitates the comparison across international patient samples. Objective: The objective was to translate, culturally adapt and validate the Simple Shoulder Test into Argentinian Spanish. Methods: The Simple Shoulder Test was translated from English into Argentinian Spanish by two independent translators, translated back into English and evaluated for accuracy by an expert committee to correct the possible discrepancies. It was then administered to 50 patients with different shoulder conditions.Psycometric properties were analyzed including internal consistency, measured with Cronbach´s Alpha, test-retest reliability at 15 days with the interclass correlation coefficient. Results: The internal consistency, validation, was an Alpha of 0,808, evaluated as good. The test-retest reliability index as measured by intra-class correlation coefficient (ICC) was 0.835, evaluated as excellent. Conclusion: The Simple Shoulder Test translation and it´s cultural adaptation to Argentinian-Spanish demonstrated adequate internal reliability and validity, ultimately allowing for its use in the comparison with international patient samples.

scholarly journals The Reliability and Validity of the Hebrew Patient Health Questionnaire (PHQ-9) in the General Population

2021 ◽  
Author(s):  
Tomer Yona ◽  
Asaf Weisman ◽  
Uri Gottlieb ◽  
Eshed Lin ◽  
Youssef Masharawi
Keyword(s):  
General Population ◽  
Correlation Coefficient ◽  
Patient Health Questionnaire ◽  
Time Interval ◽  
Minimal Detectable Change ◽  
Health Questionnaire ◽  
Retest Reliability ◽  
Patient Health ◽  
Hebrew Version ◽  
Test Retest Reliability

Objective: To assess the psychometric properties of the Hebrew version of the Patient Health Questionnaire (PHQ-9) in the general population. Methods: Using an online survey, we assessed test-retest reliability with a two-week time interval. A total of 118 participants enrolled in the study, of whom 103 completed the survey twice. Each participant filled out the PHQ-9 and the 12-Item Short Form Survey (SF-12). Our statistical analysis includes Cronbachs alpha, Intraclass Correlation Coefficient (ICC2,1), Spearmans rank correlation coefficient, Standard Error of Measurement (SEM), and Minimal Detectable Change (MDC). Results: Internal consistency of the Hebrew version of the PHQ-9 ranged from alpha=0.79-0.83. The test-retest reliability of the questionnaire is good (ICC2,1= 0.81), and it is moderately and negatively correlated to the mental component of the SF-12 (Spearman rho;= -0.57, p< .05). The SEM of the PHQ-9 is 1.83 points, and the MDC was found to be 5 points. Conclusion: The Hebrew version of the PHQ-9 is valid and reliable for screening self-reported depressive symptoms online in the general Hebrew-speaking population.

scholarly journals Development and Approbation of Methods for Diagnostics of Predisposition to Monosemantic or Polysemantic Context Generation

2019 ◽  
Vol 24 (3) ◽  
pp. 95-107
Author(s):  
N.A. Khokhlov ◽  
G.D. Laskov
Keyword(s):  
Personality Traits ◽  
Functional Asymmetry ◽  
The Other ◽  
Cronbach’S Alpha ◽  
Common Variance ◽  
Retest Reliability ◽  
Cronbach's Alpha ◽  
The Common ◽  
Test Retest Reliability

This article focuses on the development of methods to measure personality and cognitive predisposition to monosemantic or polysemantic context generation (PCG).In accordance with the concept of V.S. Rotenberg, we assumed that PCG was connected with manual functional asymmetry. We developed four tests: one was designed to measure personality PCG, the other three measure cognitive PCG. Approbation samples consisted of 160—736 participants. Cronbach's alpha (0.67—0.93) and split-half coefficient (0.72—0.93) were calculated for all tests, for two of them test-retest reliability (0.47—0.91) was measured. Variance of personal PCG on 21.7% is explained by the variance of personality traits “reticence-sociability” and “concreteness-abstractness”. Personality and cognitive PCG are interconnected, but they have a fair amount of specificity. Manual functional asymmetry is weakly connected with personal PCG (not more than 1.5% of the common variance) and is not connected with cognitive PCG

Reliability and Validity of the Thai Version of the Carolinas Comfort Scale

2021 ◽  
Vol 104 (11) ◽  
pp. 1784-1787
Keyword(s):  
Inguinal Hernia ◽  
Hernia Repair ◽  
Inguinal Hernia Repair ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Internal Consistency Reliability ◽  
Retest Reliability ◽  
Test Retest Reliability

Objective: To evaluate the reliability and validity of the Thai version of the Carolinas Comfort Scale (CCS) to measure health-related quality of life (HRQoL) in post-hernia repaired patients. Materials and Methods: Three hundred twenty-eight patients that underwent the inguinal hernia repair procedure in Vajira Hospital were recruited in the present study. The Thai version of CCS (TCCS) was performed entirely by the patient, and the test-retest reliability was conducted at a 2-week interval. Results: The TCCS’s internal consistency reliability was excellent (Cronbach’s alpha 0.89). The inter-rater reliability was found to agree with the intraclass correlation coefficient of 0.90. The test-retest reliability over two weeks was high, with an intraclass correlation coefficient of 0.92. Conclusion: The Thai version of CCS was found to have adequate reliability and validity and could be used to measure HRQoL in Thai patients that undergo inguinal hernia repair. Keywords: Reliability; Validity; Carolinas Comfort Scale; Thai version

scholarly journals Test−Retest Reliability of the ‘Welfare Quality® Animal Welfare Assessment Protocol for Sows and Piglets’. Part 1. Assessment of the Welfare Principle of ‘Appropriate Behavior’

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 398 ◽  
Author(s):  
Friedrich ◽  
Krieter ◽  
Kemper ◽  
Czycholl
Keyword(s):  
Animal Welfare ◽  
Correlation Coefficient ◽  
Retest Reliability ◽  
Welfare Assessment ◽  
Appropriate Behavior ◽  
Assessment Protocol ◽  
Smallest Detectable Change ◽  
Welfare Quality ◽  
Animal Welfare Assessment ◽  
Test Retest Reliability

The present study’s aim was to assess the test−retest reliability (TRR) of the ‘Welfare Quality® animal welfare assessment protocol for sows and piglets’ focusing on the welfare principle ‘appropriate behavior’. TRR was calculated using Spearman’s rank correlation coefficient (RS), intraclass correlation coefficient (ICC), smallest detectable change (SDC), and limits of agreement (LoA). Principal component analysis (PCA) was used for deeper analysis of the Qualitative Behavior Assessment (QBA). The study was conducted on thirteen farms in Northern Germany, which were visited five times by the same observer. Farm visits 1 (F1; day 0) were compared to farm visits 2 to 5 (F2–F5). The QBA indicated no TRR when applying the statistical parameters introduced above (e.g., ‘playful‘ (F1–F4) RS 0.08 ICC 0.00 SDC 0.50 LoA [−0.62, 0.38]). The PCA detected contradictory TRR. Acceptable TRR could be found for parts of the instantaneous scan sampling (e.g., negative social behavior (F1–F3) RS 0.45 ICC 0.37 SDC 0.02 LoA [−0.03, 0.02]). The human−animal relationship test solely achieved poor TRR, whereas scans for stereotypies showed sufficient TRR (e.g., floor licking (F1–F4) RS 0.63 ICC 0.52 SDC 0.05 LoA [−0.08, 0.04]). Concluding, the principle ‘appropriate behavior’ does not represent TRR and further investigation is needed before implementation on-farm.

scholarly journals Translation, cross-cultural adaptation and validation of the English Lequesne Algofunctional index in to Bengali

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Tarek Mahmood ◽  
Minhaj Rahim Choudhury ◽  
Md Nazrul Islam ◽  
Syed Atiqul Haq ◽  
Md Abu Shahin ◽  
...  
Keyword(s):  
Construct Validity ◽  
Knee Osteoarthritis ◽  
Correlation Coefficient ◽  
Internal Consistency ◽  
Cultural Adaptation ◽  
Convergent Validity ◽  
Divergent Validity ◽  
Retest Reliability ◽  
Knee Oa ◽  
Test Retest Reliability

Abstract Background This study was focused on translation and cultural adaptation of the English Lequesne Algofunctional index (LAI) into Bengali for patients with primary knee osteoarthritis (OA) and testing reliability and validity of the Bengali version of the LAI. Methods This study was carried out in the Department of Rheumatology, BSM Medical University, Dhaka, Bangladesh. Using the forward–backward method the English LAI was translated into Bengali including cultural adaptation. For pretesting, A sample of 40 patients with primary knee osteoarthritis were screened using the Bengali version of LAI. Following the pretest, 130 consecutive patients with symptomatic knee OA completed the interviewer administered Bengali LAI, the validated Bengali version of SF-36, Visual Analogue Scale for Pain, Distance Walked and Activities of Daily Living. For the retest 60 randomly selected patients from the cohort were administered the Bengali LAI 7 days later. An item by item analysis was performed. Internal consistency was assessed by Cronbach’s alpha, test–retest reliability by intraclass correlation coefficient (ICC) and Kappa coefficient, construct validity was measured using the Spearman rank correlation coefficient. Results It took 3.25 ± 0.71 min to complete the Bengali LAI and the mean score was 9.23 ± 4.58. For the Bengali LAI Cronbach’s alpha score was 0.88, test–retest reliability assessed by ICC was 0.97. For construct validity, excellent convergent validity was achieved (ρ = 0.93) but the divergent validity was moderate (ρ = 0.43). Conclusions The Bengali LAI showed excellent convergent validity, internal consistency and test–retest reliability, only the divergent validity was moderate. So, the Bengali LAI can be applied as a HRQoL assessment tool for primary knee OA patients.

Test–Retest Reliability and the Effects of Walking Speed on Stride Time Variability During Continuous, Overground Walking in Healthy Young Adults

2020 ◽  
pp. 1-7
Author(s):  
Nicholas S. Ryan ◽  
Paul A. Bruno ◽  
John M. Barden
Keyword(s):  
Young Adults ◽  
Walking Speed ◽  
Time Variability ◽  
Clinical Settings ◽  
Stride Time ◽  
Real Difference ◽  
Overground Walking ◽  
Retest Reliability ◽  
Intraclass Correlations ◽  
Test Retest Reliability

Studies have investigated the reliability and effect of walking speed on stride time variability during walking trials performed on a treadmill. The objective of this study was to investigate the reliability of stride time variability and the effect of walking speed on stride time variability, during continuous, overground walking in healthy young adults. Participants completed: (1) 2 walking trials at their preferred walking speed on 1 day and another trial 2 to 4 days later and (2) 1 trial at their preferred walking speed, 1 trial approximately 20% to 25% faster than their preferred walking speed, and 1 trial approximately 20% to 25% slower than their preferred walking speed on a separate day. Data from a waist-mounted accelerometer were used to determine the consecutive stride times for each trial. The reliability of stride time variability outcomes was generally poor (intraclass correlations: .167–.487). Although some significant differences in stride time variability were found between the preferred walking speed, fast, and slow trials, individual between-trial differences were generally below the estimated minimum difference considered to be a real difference. The development of a protocol to improve the reliability of stride time variability outcomes during continuous, overground walking would be beneficial to improve their application in research and clinical settings.

scholarly journals Stable individual differences in strategies within, but not between, visual search tasks

2020 ◽  
pp. 174702182092919 ◽  
Author(s):  
Alasdair DF Clarke ◽  
Jessica L Irons ◽  
Warren James ◽  
Andrew B Leber ◽  
Amelia R Hunt
Keyword(s):  
Individual Differences ◽  
Visual Search ◽  
Search Task ◽  
The Other ◽  
Retest Reliability ◽  
Search Tasks ◽  
And Performance ◽  
Context Specific ◽  
Test Retest Reliability ◽  
Over Time

A striking range of individual differences has recently been reported in three different visual search tasks. These differences in performance can be attributed to strategy, that is, the efficiency with which participants control their search to complete the task quickly and accurately. Here, we ask whether an individual’s strategy and performance in one search task is correlated with how they perform in the other two. We tested 64 observers and found that even though the test–retest reliability of the tasks was high, an observer’s performance and strategy in one task was not predictive of their behaviour in the other two. These results suggest search strategies are stable over time, but context-specific. To understand visual search, we therefore need to account not only for differences between individuals but also how individuals interact with the search task and context.

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