scholarly journals Intra- and Inter-Rater Reliability of Strength Measurements Using a Pull Hand-Held Dynamometer Fixed to the Examiner’s Body and Comparison with Push Dynamometry

Diagnostics ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1230
Author(s):  
Javier González-Rosalén ◽  
Josep Carles Benítez-Martínez ◽  
Francesc Medina-Mirapeix ◽  
Alba Cuerda-Del Pino ◽  
Antonio Cervelló ◽  
...  
Keyword(s):  
Body Composition ◽  
Standard Error ◽  
Healthy Subjects ◽  
Isometric Strength ◽  
Rater Reliability ◽  
Intra Class Correlation ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Hand held dynamometers (HHDs) are the most used method to measure strength in clinical sitting. There are two methods to realize the assessment: pull and push. The purpose of the present study was to evaluate the intra- and inter-rater reliability of a new measurement modality for pull HHD and to compare the inter-rater reliability and agreement of the measurements. Forty healthy subjects were evaluated by two assessors with different body composition and manual strength. Fifteen isometric tests were performed in two sessions with a one-week interval between them. Reliability was examined using the intra-class correlation (ICC) and the standard error of measurement (SEM). Agreement between raters was examined using paired t-tests. Intra- and inter-rater reliability for the tests performed with the pull HHD showed excellent values, with ICCs ranging from 0.991 to 0.998. For tests with values higher than 200 N, push HHD showed greater differences between raters than pull HHD. Pull HHD attached to the examiner’s body is a method with excellent reliability to measure isometric strength and showed better agreement between examiners, especially for those tests that showed high levels of strength. Pull HHD is a new alternative to perform isometric tests with less rater dependence.

scholarly journals Instrumental validity and intra/inter-rater reliability of a novel low-cost digital pressure algometer

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10162
Author(s):  
Daniel Jerez-Mayorga ◽  
Carolina Fernanda dos Anjos ◽  
Maria de Cássia Macedo ◽  
Ilha Gonçalves Fernandes ◽  
Esteban Aedo-Muñoz ◽  
...  
Keyword(s):  
Standard Error ◽  
Pain Threshold ◽  
Low Cost ◽  
Pressure Pain Threshold ◽  
Force Platform ◽  
Rater Reliability ◽  
Pressure Pain ◽  
Pressure Algometer ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Background Pain assessment is a key measure that accompanies treatments in a wide range of clinical settings. A low-cost valid and reliable pressure algometer would allow objective assessment of pressure pain to assist a variety of health professionals. However, the pressure algometer is often expensive, which limits its daily use in both clinical and research settings. Objectives This study aimed to assess the instrumental validity, and the intra- and inter-rater reliability of an inexpensive digital adapted pressure algometer. Methods A single rater applied 60 random compressions on a force platform. The pressure pain thresholds of 20 volunteers were collected twice (3 days apart) by two raters. The main outcome measurements were as follows: the maximal peak force (in kPa) and the pressure pain threshold (adapted pressure algometer vs. force platform). Cronbach’s α test was used to assess internal consistency. The standard error of measurement provided estimates of measurement error, and the measurement bias was estimated with the Bland–Altman method, with lower and upper limits of agreement. Results No differences were observed when comparing the compression results (P = 0.51). The validity and internal intra-rater consistencies ranged from 0.84 to 0.99, and the standard error of measurement from 0.005 to 0.04 kPa. Very strong (r = 0.73–0.74) to near-perfect (r = 0.99) correlations were found, with a low risk of bias for all measurements. The results demonstrated the validity and intra-rater reliability of the digitally adapted pressure algometer. Inter-rater reliability results were moderate (r = 0.55–0.60; Cronbach’s α = 0.71–0.75). Conclusion The adapted pressure algometer provide valid and reliable measurements of pressure pain threshold. The results support more widespread use of the pressure pain threshold method among clinicians.

scholarly journals The Validity and Reliability Test of Modified Picture Vocabulary Test IV in 48-59 Months Old Children

1970 ◽  
Vol 2 (01) ◽  
pp. 65-76
Author(s):  
Sumarni ◽  
Amendi Nasution ◽  
Luh K Wahyuni ◽  
Trevino Pakasi
Keyword(s):  
Construct Validity ◽  
Correlation Coefficient ◽  
Internal Consistency ◽  
Standard Error ◽  
Internal Consistency Reliability ◽  
Vocabulary Test ◽  
Validity And Reliability ◽  
Rater Reliability ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Objectives: To investigate the validity and reliability of Modified Picture Vocabulary Test IV (PPVTIV) in 48-59 months old child. Methods 228 items in 19 sets of PPVT IV were translated in Indonesian language and revised according to Indonesian culture. One hundred and five 48-59 months old children were tested. The results wereanalyzed for its construct validity and reliability. The construct validity was valued by the correlation coefficient between the set score and the total score and the correlation coefficient between the itemscore and the set score. The reliability was valued by intra-class correlation coefficient, standard error of measurement (SEM) and Cronbach alpha.Results: The construct validity of Modified PPVT IV was good (r>0.256; α=0.01 n=100) and the reliability was high (internal consistency with Cronbach alpha= 0.938, inter-rater reliability= 0.957-0,985 and standard error of measurement (SEM) = 6.4).Conclusions: Modified PPVT IV was a valid instrument with satisfactory reliability. To increase the construct validity, there were 36 items that should be substituted.Key Words: Modified PPVT IV, construct validity, internal consistency reliability, inter-rater reliability, standard error of measurement Received in

Reliability, standard error of measurement, and minimal detectable change of the star excursion balance test in children with cerebral palsy

2020 ◽  
Vol 33 (6) ◽  
pp. 909-912
Author(s):  
Do-Hyun Kim ◽  
Duk-Hyun An ◽  
Won-Gyu Yoo
Keyword(s):  
Cerebral Palsy ◽  
Standard Error ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Balance Test ◽  
Rater Reliability ◽  
Children With Cerebral Palsy ◽  
Star Excursion Balance Test ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

OBJECTIVE: The present study aimed to estimate the reliability, standard error of measurement (SEM), and minimum detectable change (MDC) of the star excursion balance test (SEBT) in children with cerebral palsy (CP). METHODS: Eight children with CP (five boys and three girls, sixteen legs) participated in this study. Each child carried out the SEBT and was assessed by two examiners. To determine intra-rater reliability, the intra-class correlation coefficient (ICC) model (3, 3) was calculated. To determine the inter-rater reliability, the ICC model (2, 3) was computed. RESULTS: In terms of the intra-rater reliability of the SEBT, the ICC varied from 0.98 to 0.99 and the total ICC score was 0.99 (p< 0.001). For the inter-rater reliability, the ICC varied from 0.98 to 1.00 and the total ICC score was 0.99 (p< 0.001). The SEBT had an SEM of 2.63 and an MDC of 7.31. CONCLUSION: The SEBT is not only reliable with a small SEM, but is also a simple and cheap assessment of dynamic balance in children with CP.

Interpretation of the Standard Error of Measurement when True Scores and Error Scores on Mental Tests are Not Independent

1966 ◽  
Vol 19 (2) ◽  
pp. 611-617 ◽  
Author(s):  
Donald W. Zimmerman ◽  
Richard H. Williams
Keyword(s):  
Standard Deviation ◽  
Standard Error ◽  
Test Score ◽  
Test Reliability ◽  
True Score ◽  
Observed Score ◽  
Standard Error Of Measurement ◽  
True Scores ◽  
Modified Equation ◽  
Error Of Measurement

It is shown that for the case of non-independence of true scores and error scores interpretation of the standard error of measurement is modified in two ways. First, the standard deviation of the distribution of error scores is given by a modified equation. Second, the confidence interval for true score varies with the individual's observed score. It is shown that the equation, so=√[(N−O/a]+[so2(roō−roo)/roō]̄, where N is the number of items, O is the individual's observed score, a is the number of choices per item, so2 is observed variance, roo is test reliability as empirically determined, and roō is reliability for the case where only non-independent error is present, provides a more accurate interpretation of the test score of an individual.

Assessment of Knee Laxity Following Anterior Cruciate Ligament Reconstruction

1993 ◽  
Vol 2 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Kelly R. Holcomb ◽  
Cheryl A. Skaggs ◽  
Teddy W. Worrell ◽  
Mark DeCarlo ◽  
K. Donald Shelbourne
Keyword(s):  
Anterior Cruciate Ligament ◽  
Standard Error ◽  
Cruciate Ligament ◽  
Intraclass Correlation ◽  
Knee Laxity ◽  
Testing Procedures ◽  
Kt 1000 ◽  
Anterior Cruciate ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

A paucity of information exists concerning reliability of the KT-1000 knee arthrometer (MEDmetric Corp., San Diego, CA) when used by different clinicians to assess the same anterior cruciate ligament-deficient patient. The purpose of this study was to determine the reliability and standard error of measurement of four clinicians who routinely report KT-1000 arthrometer values to referring orthopedic surgeons. Two physical therapists and two athletic trainers performed anterior laxity tests using the KT-1000 on 19 subjects. Intraclass correlation coefficients (ICC) and standard error of measurement (SEM) were used to determine reliability. Intratester ICC ranged from .98 to 1.0 and intratesterSEMranged from 0.0 to .28 mm. Intertester ICC andSEMfor all four testers were .53 and 1.2 mm, respectively. A 95% confidence interval (M ± 1.96 ×SEM) of the intertester variability ranged from −0.18 to 4.52 mm. Therefore, large intertester variation existed in KT-1000 values. Each facility should standardize testing procedures and establish intratester and intertester reliability for all clinicians reporting KT-1000 values.

Reproducibility of the Rotor 2INpower Crankset for Monitoring Cycling Power Output: A Comprehensive Analysis in Different Real-Context Situations

2021 ◽  
pp. 1-6
Author(s):  
Víctor Rodríguez-Rielves ◽  
Alejandro Martínez-Cava ◽  
Ángel Buendía-Romero ◽  
José Ramón Lillo-Beviá ◽  
Javier Courel-Ibáñez ◽  
...  
Keyword(s):  
Exercise Test ◽  
Standard Error ◽  
Power Output ◽  
Gold Standard ◽  
Graded Exercise Test ◽  
Wide Range ◽  
Graded Exercise ◽  
Standard Error Of Measurement ◽  
Acceptable Agreement ◽  
Error Of Measurement

Purpose: To examine the reproducibility (intradevice and interdevice agreement) of the Rotor 2INpower device under a wide range of cycling conditions. Methods: Twelve highly trained male cyclists and triathletes completed 5 cycling tests, including graded exercise tests at different cadences (70–100 rpm), workloads (100–650 W), pedaling positions (seated and standing), and vibration conditions (20–40 Hz) and an 8-second maximal sprint (>1000 W). An intradevice analysis included a comparison between the power output registered by 3 units of Rotor 2INpower, whereas the power output provided by each one of these units and the gold-standard SRM crankset were compared for the interdevice analysis. Among others, statistical calculations included the standard error of measurement, expressed in absolute (in watts) and relative terms as the coefficient of variation (CV). Results: Except for the graded exercise test seated at 100 rpm/100 W (CV = 10.2%), the intradevice analysis showed an acceptable magnitude of error (CV ≤ 6.9%, standard error of measurement ≤ 12.3 W) between the 3 Rotor 2INpower. Similarly, these 3 units showed an acceptable agreement with the gold standard in all graded exercise test situations (CV ≤ 4.0%, standard error of measurement ≤ 13.1 W). On the other hand, both the intradevice and interdevice agreements proved to be slightly reduced under high cadences (intradevice: CV ≤ 10.2%; interdevice: CV ≤ 4.0%) and vibration (intradevice: CV ≤ 4.0%; interdevice: CV ≤ 3.6%), as well as during standing pedaling (intradevice: CV ≤ 4.1%; interdevice: CV ≤ 2.5%). Although within the limits of an acceptable agreement, measurement errors increased during the sprint tests (CV ≤ 7.4%). Conclusions: Based on these results, the Rotor 2INpower could be considered a reproducible tool to monitor power output in most cycling situations.

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