A Pilot Study of the Snap & Sniff Threshold Test

2018 ◽  
Vol 127 (5) ◽  
pp. 312-316
Author(s):  
Rong-San Jiang ◽  
Kai-Li Liang
Keyword(s):  
Pilot Study ◽  
Correlation Coefficient ◽  
Strongly Correlated ◽  
Olfactory Threshold ◽  
Retest Reliability ◽  
Threshold Test ◽  
Patient Groups ◽  
The Mean ◽  
Test Retest Reliability ◽  
Olfactory Thresholds

Objectives: The Snap & Sniff® Threshold Test (S&S) has been recently developed to determine the olfactory threshold. The aim of this study was to further evaluate the validity and test–retest reliability of the S&S. Methods: The olfactory thresholds of 120 participants were determined using both the Smell Threshold Test (STT) and the S&S. The participants included 30 normosmic volunteers and 90 patients (60 hyposmic, 30 anosmic). The normosmic participants were retested using the STT and S&S at an intertest interval of at least 1 day. Results: The mean olfactory threshold determined with the S&S was −6.76 for the normosmic participants, −3.79 for the hyposmic patients, and −2 for the anosmic patients. The olfactory thresholds were significantly different across the 3 groups ( P < .001). Snap & Sniff–based and STT-based olfactory thresholds were correlated weakly in the normosmic group (correlation coefficient = 0.162, P = .391) but more strongly correlated in the patient groups (hyposmic: correlation coefficient = 0.376, P = .003; anosmic: correlation coefficient = 1.0). The test–retest correlation for the S&S-based olfactory thresholds was 0.384 ( P = .036). Conclusion: Based on validity and test–retest reliability, we concluded that the S&S is a proper test for olfactory thresholds.

scholarly journals Nasal functional modifications after physical exercise: olfactory threshold and peak nasal inspiratory flow

2010 ◽  
Vol 48 (3) ◽  
pp. 277-280
Author(s):  
G. Marioni ◽  
G. Ottaviano ◽  
A. Staffieri ◽  
M. Zaccaria ◽  
V.J. Lund ◽  
...  
Keyword(s):  
Physical Exercise ◽  
Inspiratory Flow ◽  
Nasal Patency ◽  
Olfactory Threshold ◽  
Threshold Test ◽  
Significant Difference ◽  
The Mean ◽  
The Stability ◽  
Peak Nasal Inspiratory Flow ◽  
Olfactory Thresholds

Statement of problem: The respiratory nasal effects of physical exercise have been extensively investigated; on the other hand there are no data regarding olfactory threshold modification after aerobic physical exercise. Methods: The present prospective study investigated the modifications in nasal respiratory flows and olfactory thresholds after controlled aerobic physical exercise in a cohort of 15 adult, healthy volunteers. The Peak Nasal Inspiratory Flow (PNIF), and the Sniffin’ Sticks olfactory threshold test were used for our determinations. Main results: The mean PNIF after physical exercise was significantly higher than the mean PNIF value found before physical exercise. Statistical analysis ruled out any significant difference between mean olfactory thresholds pre vs post physical exercise. Principal conclusions: These outcomes confirmed PNIF sensitivity and reliability also in determining the changes in nasal patency occurring after physical exercise. The active vasoconstriction of nasal mucosa associated with the reduction of blood flow to the olfactory epithelium due to physical exercise may be compensated for by the increase of olfactory molecules that reach the olfactory mucosa because of nasal mucosal shrinkage: this mechanism could explain the stability of mean olfactory threshold after physical exercise.

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 Reliability and validity of a Mediterranean diet and culinary index (MediCul) tool in an older population with mild cognitive impairment

2018 ◽  
Vol 120 (10) ◽  
pp. 1189-1200 ◽  
Author(s):  
Sue Radd-Vagenas ◽  
Maria A. Fiatarone Singh ◽  
Michael Inskip ◽  
Yorgi Mavros ◽  
Nicola Gates ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Mediterranean Diet ◽  
Reliability And Validity ◽  
Community Dwelling ◽  
Systematic Bias ◽  
Older Individuals ◽  
Retest Reliability ◽  
The Mean ◽  
Test Retest Reliability

AbstractDementia is a leading cause of morbidity and mortality without pharmacologic prevention or cure. Mounting evidence suggests that adherence to a Mediterranean dietary pattern may slow cognitive decline, and is important to characterise in at-risk cohorts. Thus, we determined the reliability and validity of the Mediterranean Diet and Culinary Index (MediCul), a new tool, among community-dwelling individuals with mild cognitive impairment (MCI). A total of sixty-eight participants (66 % female) aged 75·9 (sd 6·6) years, from the Study of Mental and Resistance Training study MCI cohort, completed the fifty-item MediCul at two time points, followed by a 3-d food record (FR). MediCul test–retest reliability was assessed using intra-class correlation coefficients (ICC), Bland–Altman plots and κ agreement within seventeen dietary element categories. Validity was assessed against the FR using the Bland–Altman method and nutrient trends across MediCul score tertiles. The mean MediCul score was 54·6/100·0, with few participants reaching thresholds for key Mediterranean foods. MediCul had very good test–retest reliability (ICC=0·93, 95 % CI 0·884, 0·954, P<0·0001) with fair-to-almost-perfect agreement for classifying elements within the same category. Validity was moderate with no systematic bias between methods of measurement, according to the regression coefficient (y=−2·30+0·17x) (95 % CI −0·027, 0·358; P=0·091). MediCul over-estimated the mean FR score by 6 %, with limits of agreement being under- and over-estimated by 11 and 23 %, respectively. Nutrient trends were significantly associated with increased MediCul scoring, consistent with a Mediterranean pattern. MediCul provides reliable and moderately valid information about Mediterranean diet adherence among older individuals with MCI, with potential application in future studies assessing relationships between diet and cognitive function.

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.

The TAPS Project. 9: The Reliability of the Patient Attitude Questionnaire

1993 ◽  
Vol 162 (S19) ◽  
pp. 25-29 ◽  
Author(s):  
Graham Thornicroft ◽  
Christopher Gooch ◽  
Catherine O'Driscoll ◽  
Sawsan Reda
Keyword(s):  
Living Arrangements ◽  
Psychiatric Patients ◽  
Kappa Coefficient ◽  
Attitudinal Change ◽  
Attitude Questionnaire ◽  
Retest Reliability ◽  
Patient Attitude ◽  
The Mean ◽  
Test Retest Reliability

The development of the hospital and community versions of the Patient Attitude Questionnaire is described. The instrument rates the attitudes of psychiatric patients towards their treatment settings and staff, and is framed specifically to assess attitudinal change during the transfer of patients from hospital. For the items rated using the kappa coefficient of agreement, the mean test-retest reliability value was 0.51, and the average inter-rater value was 0.82. This study shows that long-term psychiatric patients are able to give clear and consistent views about their living arrangements - views that should be sought and respected by staff.

scholarly journals Validation of Sinhala Version of Brief COPE Scale in Patients with Cancer in Sri Lanka

2021 ◽  
Author(s):  
Eranthi Weeratunga ◽  
Chandanie Senadheera ◽  
Manjula Hettiarachchi ◽  
Bilesha Perera
Keyword(s):  
Sri Lanka ◽  
Coping Strategies ◽  
Cronbach’S Alpha ◽  
Maladaptive Coping ◽  
Retest Reliability ◽  
Patients With Cancer ◽  
Cronbach's Alpha ◽  
Brief Cope ◽  
The Mean ◽  
Test Retest Reliability

Abstract Background Coping strategies are essential in the cancer management/recovery process and show an integral part in patients with cancer globally. In Sri Lanka, validated scales to measure coping are scarce. This study was examined the Sinhalese version of the Brief COPE for its psychometric properties. Methods This scale is self-administered (28 items) and consists of adaptive and maladaptive coping strategies; divided into 14 subscales. Cancer patients were registered ‘first come - first serve’ basis using their appointment register at the Radiotherapy Unit, Oncology ward, Teaching Hospital, Karapitiya, Galle, Sri Lanka. They were requested to complete the Sinhalese version of the Brief COPE and demographic details. Test-retest reliability was checked using the same subjects two weeks later. Factorial validity was performed using exploratory factor and principal component analysis. Results were regarded as statistically significant if p < 0.05. Results The mean (±SD) age of the sample was 61(±12) years. The mean adaptive coping (±SD) and maladaptive coping were 37.50 (±8.14) and 17.10 (±2.44) respectively. The internal consistency of the overall scale was good (Cronbach’s alpha - 0.819). Adaptive and maladaptive coping showed a high Cronbach’s alpha (0.861 and 0.396). The test-retest reliability was found to be 0.66. The Sinhala version of BC was found to have a negative correlation with the CES-D scale but was positively correlated with the WHOQOL-BREF questionnaire. Seven factors were extracted. Conclusion The Sinhala version of the Brief COPE is a valid and reliable tool to assess coping strategies among patients with cancer. The findings of this study would let the health authorities get an understanding of coping strategies among patients with cancer; and the impact on cancer victims and family members to relieve their suffering.

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 Arabic Version of the Short Anterior Cruciate Ligament–Return to Sport After Injury Scale: Translation, Cross-cultural Adaptation, and Validation

2022 ◽  
Vol 10 (1) ◽  
pp. 232596712110665
Author(s):  
Msaad Alzhrani ◽  
Hosam Alzahrani ◽  
Yasir S. Alshehri
Keyword(s):  
Anterior Cruciate Ligament ◽  
Internal Consistency ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Short Version ◽  
Return To Sports ◽  
Strongly Correlated ◽  
Retest Reliability ◽  
Anterior Cruciate ◽  
Test Retest Reliability

Background: The short version of the Anterior Cruciate Ligament–Return to Sport After Injury (ACL-RSI) scale is a self-reported questionnaire developed to assess the psychological readiness of patients to return to sports after ACL reconstruction (ACLR). Purpose: To translate, cross-culturally adapt, and validate the short version of the ACL-RSI scale into the Arabic language (ACL-RSI-Ar). Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: The original short version of the ACL-RSI scale was forward and backward translated, cross-culturally adapted, and validated following international standardized guidelines. Sixty patients who participated in sports activities and underwent ACLR completed the ACL-RSI-Ar, the International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, and Knee injury and Osteoarthritis Outcome Score (KOOS) scales. To assess test-retest reliability, 34 participants completed the ACL-RSI-Ar scale twice. Statistical tests were conducted to test the internal consistency, reliability, and construct and discriminant validity of the ACL-RSI-Ar scale. Results: The ACL-RSI-Ar showed adequate internal consistency (Cronbach alpha = 0.734) and excellent test-retest reliability (intraclass correlation coefficient, 0.871). The ACL-RSI-Ar was strongly correlated with the IKDC (Spearman ρ = 0.515, P < .001) and weakly to strongly correlated with all KOOS subscales (Spearman ρ = 0.247-0.590, P < .05). Patients who returned to sports had significantly higher scores on the ACL-RSI-Ar scale when compared with those who did not return to sports ( P = .001). Conclusion: The short ACL-RSI-Ar scale, as translated, was internally consistent, reliable, and valid for evaluating psychological readiness to return to sports after ACLR in Arabic-speaking patients.

scholarly journals Test-Retest Reliability, Convergent Validity and Practice Effects of the RBANS in a Memory Clinic Setting: A Pilot Study

2013 ◽  
Vol 02 (04) ◽  
pp. 11-16 ◽  
Author(s):  
Yanhong Dong ◽  
Claire L. Thompson ◽  
Shi Huey Joanne Tan ◽  
Leon Ben Swie Lim ◽  
Wanshin Pang ◽  
...  
Keyword(s):  
Pilot Study ◽  
Convergent Validity ◽  
Practice Effects ◽  
Memory Clinic ◽  
Retest Reliability ◽  
Clinic Setting ◽  
Test Retest Reliability

Novel Ultrasonographic Thickness and Strength Assessments of the Flexor Digitorum: A Reliability Analysis

2021 ◽  
Vol 36 (4) ◽  
pp. 269-278
Author(s):  
Christos I Ioannou ◽  
Franziska L Hodde-Chriske ◽  
Marios N Avraamides ◽  
Eckart Altenmüller
Keyword(s):  
High Sensitivity ◽  
Extensor Digitorum ◽  
Retest Reliability ◽  
Custom Made ◽  
Smallest Detectable Change ◽  
The Mean ◽  
The Right ◽  
Flexor Digitorum ◽  
Clinical Conditions ◽  
Test Retest Reliability

OBJECTIVES: Clinical conditions such as focal dystonia often require the assessment of atrophy and weakness of the finger muscles. However, due to a lack of well-established protocols, the current investigation focused on assessing the reliability of thickness and strength assessments of the flexor digitorum (FD) muscle, including both the superficialis and profundus components. As a secondary assessment, the reliability of the strength measurement of the extensor digitorum muscle was examined as well. METHODS: Different thickness measurements of the FD were taken via ultrasonography and averaged to estimate the mean thickness of the FD. Likewise, individual finger strength measurements taken by a custom-made finger pressure device were averaged to compute the mean strength of the flexor and extensor digitorum muscles. Test-retest reliability of the above measurements performed at two different time points (about 6 months apart) were examined on the right and left hands of 10 participants. RESULTS: Findings indicated excellent test-retest reliability (ICC > 0.92) for the mean thickness assessment of the FD and mean strength of the flexor and extensor digitorum for both dominant and non-dominant hands. The standard error of measurement was ≤4.3% for all three mean assessments, indicating high sensitivity. Likewise, the smallest detectable change was also sufficiently small for the mean thickness and mean strength of the flexor digitorum (≤5.1%) and moderately small (≤12%) for the strength of the extensor digitorum. CONCLUSIONS: Results indicated an excellent relative and absolute reliability, for both hands, for the mean thickness and strength assessments of the flexor digitorum muscle and for the mean strength of the extensor digitorum (measured for both hands). These measurements can be used for future investigations and can contribute to the establishment of more precise methods for assessing the muscles in the forearms which serve the hand.

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