Intrarater Reliability

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Joseph Hulihan - One of the best experts on this subject based on the ideXlab platform.

  • assessment of interrater and Intrarater Reliability of the fahn tolosa marin tremor rating scale in essential tremor
    Movement Disorders, 2007
    Co-Authors: Mark Stacy, Rodger J Elble, William G Ondo, Joseph Hulihan
    Abstract:

    The purpose of this study was to evaluate interrater and Intrarater Reliability of the Fahn-Tolosa-Marin Tremor Rating Scale (TRS) in essential tremor (ET). Proper treatment of ET is contingent upon correct assessment of the severity, loss of function, and disability related to tremor. Videotape recordings of 17 subjects with ET evaluated with the TRS were produced and sent to 59 raters. Once the raters returned the videotape and completed the score sheet, they were mailed a second tape with the same recordings presented in a different order. In the interrater Reliability evaluation, modified Kappa statistics for seven tremor type composites ranged from 0.10 to 0.65 in the first videotape and 0.17 to 0.62 in the second videotape. Interrater reliabilities were greater for Part A items (magnitude of tremor in different body parts) than for Part B items (tremor in writing and drawings) of the TRS. The average Spearman correlation was 0.87, indicating very good consistency between the two videotapes, but correlations for Part A were somewhat better than for Part B. It is best when the same rater performs repeated measures of tremor on a patient, particularly when judging tremor in handwriting and drawings. Training of raters on use of the TRS would help standardize judgement.

  • assessment of interrater and Intrarater Reliability of the fahn tolosa marin tremor rating scale in essential tremor
    Movement Disorders, 2007
    Co-Authors: Mark Stacy, Rodger J Elble, William G Ondo, Shu Chen Wu, Joseph Hulihan
    Abstract:

    The purpose of this study was to evaluate interrater and Intrarater Reliability of the Fahn-Tolosa-Marin Tremor Rating Scale (TRS) in essential tremor (ET). Proper treatment of ET is contingent upon correct assessment of the severity, loss of function, and disability related to tremor. Videotape recordings of 17 subjects with ET evaluated with the TRS were produced and sent to 59 raters. Once the raters returned the videotape and completed the score sheet, they were mailed a second tape with the same recordings presented in a different order. In the interrater Reliability evaluation, modified Kappa statistics for seven tremor type composites ranged from 0.10 to 0.65 in the first videotape and 0.17 to 0.62 in the second videotape. Interrater reliabilities were greater for Part A items (magnitude of tremor in different body parts) than for Part B items (tremor in writing and drawings) of the TRS. The average Spearman correlation was 0.87, indicating very good consis- tency between the two videotapes, but correlations for Part A were somewhat better than for Part B. It is best when the same rater performs repeated measures of tremor on a patient, par- ticularly when judging tremor in handwriting and drawings. Training of raters on use of the TRS would help standardize judgement. © 2007 Movement Disorder Society

J. Berth-jones - One of the best experts on this subject based on the ideXlab platform.

  • A study examining inter-rater and Intrarater Reliability of a novel instrument for assessment of psoriasis: the Copenhagen Psoriasis Severity Index.
    The British journal of dermatology, 2008
    Co-Authors: J. Berth-jones, John F. Thompson, Kim Papp
    Abstract:

    BACKGROUND: There is a perceived need for a better method for clinical assessment of the severity of psoriasis vulgaris. The most frequently used system is the Psoriasis Area and Severity Index (PASI), which has significant disadvantages, including the requirement for assessment of the percentage of skin affected, an inability to separate milder cases, and a lack of linearity. The Copenhagen Psoriasis Severity Index (CoPSI) is a novel approach which comprises assessment of three signs: erythema, plaque thickness and scaling, each on a four-point scale (0, none; 1, mild; 2, moderate; 3, severe), at each of 10 sites: face, scalp, upper limbs (excluding hands and wrists), hands and wrists, chest and abdomen, back, buttocks and sacral area, genitalia, lower limbs (excluding feet and ankles), feet and ankles. OBJECTIVES: To evaluate the inter-rater and Intrarater Reliability of the CoPSI and to provide comparative data from the PASI and a Physician's Global Assessment (PGA) used in recent clinical trials on psoriasis vulgaris. METHODS: On the day before the study, 14 dermatologists (raters) with an interest in psoriasis participated in a detailed training session and discussion (2.5 h) on use of the scales. On the study day, each rater evaluated 16 adults with chronic plaque psoriasis in the morning and again in the afternoon. Raters were randomly assigned to assess subjects using the scales in a specific sequence, either PGA, CoPSI, PASI or PGA, PASI, CoPSI. Each rater used one sequence in the morning and the other in the afternoon. The primary endpoint was the inter-rater and Intrarater Reliability as determined by intraclass correlation coefficients (ICCs). RESULTS: All three scales demonstrated 'substantial' (a priori defined as ICC > 80%) Intrarater Reliability. The inter-rater Reliability for each of the CoPSI and PASI was also 'substantial' and for the PGA was 'moderate' (ICC 61%). The CoPSI was better at distinguishing between milder cases. CONCLUSIONS: The CoPSI and the PASI both provided reproducible psoriasis severity assessments. In terms of both Intrarater and inter-rater Reliability values, the CoPSI and the PASI are superior to the PGA. The CoPSI may overcome several of the problems associated with the PASI. In particular, the CoPSI avoids the need to estimate a percentage of skin involved, is able to separate milder cases where the PASI lacks sensitivity, and is also more linear and simpler. The CoPSI also incorporates more meaningful weighting of different anatomical areas.

  • A study examining inter‐ and Intrarater Reliability of three scales for measuring severity of psoriasis: Psoriasis Area and Severity Index, Physician's Global Assessment and Lattice System Physician's Global Assessment
    The British journal of dermatology, 2006
    Co-Authors: J. Berth-jones, K. Grotzinger, C. Rainville, B. Pham, J. Huang, S. Daly, M. Herdman, P. Firth, K. Hotchkiss
    Abstract:

    Summary Background  There is a lack of consensus as to the best way of monitoring psoriasis severity in clinical trials. The Psoriasis Area and Severity Index (PASI) is the most frequently used system and the Physician's Global Assessment (PGA) is also often used. However, both instruments have some drawbacks and neither has been fully evaluated in terms of ‘validity’ and ‘Reliability’ as a psoriasis rating scale. The Lattice System Physician's Global Assessment (LS-PGA) scale has recently been developed to address some disadvantages of the PASI and PGA. Objectives  To evaluate the inter-rater and Intrarater Reliability of the PASI, PGA and LS-PGA. Methods  On the day before the study, 14 dermatologists (raters), with varied experience of assessing psoriasis, received detailed training (2·5 h) on use of the scales. On the study day, each rater evaluated 16 adults with chronic plaque psoriasis in the morning and again in the afternoon. Raters were randomly assigned to assess subjects using the scales in a specific sequence, either PGA, LS-PGA, PASI or PGA, PASI, LS-PGA. Each rater used one sequence in the morning and the other in the afternoon. The primary endpoint was the inter-rater and Intrarater Reliability as determined by intraclass correlation coefficients (ICCs). Results  All three scales demonstrated ‘substantial’ (a priori defined as ICC > 80%) Intrarater Reliability. The inter-rater Reliability for each of the PASI and LS-PGA was also ‘substantial’ and for the PGA was ‘moderate’ (ICC 75%). Conclusions  Each one of the three scales provided reproducible psoriasis severity assessments. In terms of both Intrarater and inter-rater Reliability values, the three scales can be ranked from highest to lowest as follows: PASI, LS-PGA and PGA.

Oren Lapid - One of the best experts on this subject based on the ideXlab platform.

  • Inter- and Intrarater Reliability of Hurley staging for hidradenitis suppurativa.
    The British journal of dermatology, 2019
    Co-Authors: Zachri N. Ovadja, M.m. Schuit, C. M. A. M. Van Der Horst, Oren Lapid
    Abstract:

    Background: Hidradenitis suppurativa (HS) is a chronic, inflammatory and recurrent skin disease. Different staging instruments have been suggested, but none has achieved universal acceptance. Despite the fact that Hurley staging is one of the most widely applied HS disease severity staging instruments, it has not been validated. Objectives: To determine the inter- and Intrarater Reliability of the Hurley staging system. Methods: Fifteen raters (five plastic surgeons, five general surgeons and five dermatologists) independently staged 30 photos of patients with HS according to Hurley staging at two time points. Reliability was assessed using kappa (k) statistics, and multivariable logistic regressions were used to determine independent risk factors for photos with discordant staging. Results: Inter-rater Reliability was moderate for the three stages of HS [κ = 0·59, 95% confidence interval (CI) 0·48–0·70]. It was moderate for Hurley stage I (κ = 0·45, 95% CI 0·32–0·55) and stage II (κ = 0·51, 95% CI 0·31–0·71) and it was almost perfect for stage III (κ = 0·81, 95% CI 0·62–1·00). The Intrarater Reliability was substantial for all stages and all raters (κ = 0·65, 95% CI 0·58–0·72). For stage I it was moderate (κ = 0·50, 95% CI 0·38–0·62), for stage II it was substantial (κ = 0·62, 95% CI 0·51–0·73) and for stage III it was almost perfect (κ = 0·82, 95% CI 0·77–0·87). Hurley stages II and III were less likely to result in discordant staging than Hurley stage I (odds ratios 0·47, 95% CI 0·29–0·77 and 0·21, 95% CI 0·12–0·38, respectively). The mean time spent on staging a photo was 14 s. Conclusions: Hurley staging is reliable for rapid severity assessment of HS, with moderate inter-rater and substantial Intrarater Reliability for all stages. It is best for assessing Hurley stage III HS, which is an indication for surgery.

Mark Stacy - One of the best experts on this subject based on the ideXlab platform.

  • assessment of interrater and Intrarater Reliability of the fahn tolosa marin tremor rating scale in essential tremor
    Movement Disorders, 2007
    Co-Authors: Mark Stacy, Rodger J Elble, William G Ondo, Joseph Hulihan
    Abstract:

    The purpose of this study was to evaluate interrater and Intrarater Reliability of the Fahn-Tolosa-Marin Tremor Rating Scale (TRS) in essential tremor (ET). Proper treatment of ET is contingent upon correct assessment of the severity, loss of function, and disability related to tremor. Videotape recordings of 17 subjects with ET evaluated with the TRS were produced and sent to 59 raters. Once the raters returned the videotape and completed the score sheet, they were mailed a second tape with the same recordings presented in a different order. In the interrater Reliability evaluation, modified Kappa statistics for seven tremor type composites ranged from 0.10 to 0.65 in the first videotape and 0.17 to 0.62 in the second videotape. Interrater reliabilities were greater for Part A items (magnitude of tremor in different body parts) than for Part B items (tremor in writing and drawings) of the TRS. The average Spearman correlation was 0.87, indicating very good consistency between the two videotapes, but correlations for Part A were somewhat better than for Part B. It is best when the same rater performs repeated measures of tremor on a patient, particularly when judging tremor in handwriting and drawings. Training of raters on use of the TRS would help standardize judgement.

  • assessment of interrater and Intrarater Reliability of the fahn tolosa marin tremor rating scale in essential tremor
    Movement Disorders, 2007
    Co-Authors: Mark Stacy, Rodger J Elble, William G Ondo, Shu Chen Wu, Joseph Hulihan
    Abstract:

    The purpose of this study was to evaluate interrater and Intrarater Reliability of the Fahn-Tolosa-Marin Tremor Rating Scale (TRS) in essential tremor (ET). Proper treatment of ET is contingent upon correct assessment of the severity, loss of function, and disability related to tremor. Videotape recordings of 17 subjects with ET evaluated with the TRS were produced and sent to 59 raters. Once the raters returned the videotape and completed the score sheet, they were mailed a second tape with the same recordings presented in a different order. In the interrater Reliability evaluation, modified Kappa statistics for seven tremor type composites ranged from 0.10 to 0.65 in the first videotape and 0.17 to 0.62 in the second videotape. Interrater reliabilities were greater for Part A items (magnitude of tremor in different body parts) than for Part B items (tremor in writing and drawings) of the TRS. The average Spearman correlation was 0.87, indicating very good consis- tency between the two videotapes, but correlations for Part A were somewhat better than for Part B. It is best when the same rater performs repeated measures of tremor on a patient, par- ticularly when judging tremor in handwriting and drawings. Training of raters on use of the TRS would help standardize judgement. © 2007 Movement Disorder Society

William D. Bandy - One of the best experts on this subject based on the ideXlab platform.

  • Intrarater Reliability of crom measurement of cervical spine active range of motion in persons with and without neck pain
    Journal of Orthopaedic & Sports Physical Therapy, 2008
    Co-Authors: James P Fletcher, William D. Bandy
    Abstract:

    Study Design Clinical measurement, Intrarater Reliability study. Objectives To determine the Intrarater Reliability of cervical active range of motion (AROM) measurement of subjects with and without neck pain using the cervical range-of-motion device (CROM). Background Cervical spine AROM data are used by physical therapists to assist in identifying movement impairment, monitor patient progress, and evaluate the effectiveness of intervention. Presently, insufficient literature exists regarding the Intrarater Reliability of cervical AROM measurements using the CROM. Methods and Measures Twenty-five adult subjects without neck pain and 22 adult subjects with neck pain volunteered for the study. Two trials of cervical AROM measurement (6 movements) were performed for each subject. Practice sessions, methods of measurement, and rest time between trials were standardized; order of measurement was randomized. Results The intraclass correlation coefficients (ICC31) for the subjects without neck pain ranged from ...

  • Intrarater Reliability of the KT1000 arthrometer in determining anterior translation of the glenohumeral joint.
    Archives of physical medicine and rehabilitation, 2005
    Co-Authors: J. David Taylor, William D. Bandy
    Abstract:

    Abstract Taylor JD, Bandy WD. Intrarater Reliability of the KT1000 arthrometer in determining anterior translation of the glenohumeral joint. Arch Phys Med Rehabil 2005;86:826–9. Objectives To establish Intrarater Reliability of the KT1000 arthrometer in determining glenohumeral anterior translation and to determine if a difference existed between measurements of glenohumeral anterior translation in 2 testing positions. Design Intrarater Reliability study. Setting Academic laboratory. Participants Convenience sample of 15 unimpaired volunteers (mean age ± standard deviation, 25±4y). Interventions Not applicable. Main outcome measures Subjects were positioned supine with the shoulder in 20° of abduction and 0° of external rotation (position 1) and 90° of abduction and 90° of external rotation (position 2). The KT1000 was placed on the shoulder with the tibia sensor pad near the joint line and the patella sensor pad over the coracoid process. Testing involved an anteriorly directed force of 67N. Testing procedures were repeated after 1 week. Results The intraclass correlation coefficients (ICCs) for Intrarater Reliability for position 1 (ICC=.93; 95% confidence interval [CI], .81–.98) and for position 2 (ICC=.93; 95% CI, .80–.97) were excellent. The degree of anterior translation measured in position 1 was significantly greater than in position 2 ( t =4.79, P Conclusions Use of the KT1000 to measure glenohumeral anterior translation in the 2 testing positions appears to be a relatively simple, reliable method. Because testing position 1 allowed significantly greater anterior translation than testing position 2, the 2 positions should not be used interchangeably.

  • Intrarater Reliability of 1 repetition maximum estimation in determining shoulder internal rotation muscle strength performance.
    Journal of strength and conditioning research, 2005
    Co-Authors: J. David Taylor, William D. Bandy
    Abstract:

    The purpose of this study was to determine Intrarater Reliability of the 1 repetition maximum (1RM) estimation for shoulder internal rotation. The accuracy of the estimated 1RM was determined by establishing the actual 1RM. Fifteen subjects were positioned supine with the shoulder in 0 degrees abduction (position 1) and prone with the shoulder in 90 degrees abduction (position 2). Subjects were placed in both testing positions and performed resisted shoulder internal rotation. A 1RM estimation equation was used to estimate shoulder internal rotation strength. After 1 week, procedures were repeated and Intrarater Reliability was calculated. One week after 1RM estimation procedures were completed, the accuracy of an estimated 1RM was determined by establishing an actual 1RM. The results indicated excellent Intrarater Reliability for position 1 (intraclass correlation coefficient [ICC] = 0.99) and position 2 (ICC = 0.96). The correlation coefficients for accuracy indicated excellent concurrent validation was attained for position 1 (ICC = 0.99) and position 2 (ICC = 0.97). Shoulder internal rotation 1RM estimation appears to be reliable and accurate. Clinicians may use submaximal loads to estimate the 1RM and decrease the possibility of injury during actual 1RM strength testing.