scholarly journals Psychometric Testing of the Life Changes in Epilepsy Scale

2017 ◽  
Vol 25 (1) ◽  
pp. 41-55 ◽  
Author(s):  
Wendy R. Miller ◽  
Michael Weaver ◽  
Girogos Bakoyannis ◽  
Tamilyn Bakas ◽  
Janice Buelow ◽  
...  

Purpose: Three aims were addressed: (a) Evaluate properties of the items comprising the Life Changes in Epilepsy Scale-Pilot (LCES-P), (b) use item analysis to optimize the scale, (c) evaluate construct and criterion-related validity of the optimized LCES. Methods: The LCES-P was administered to 174 adults with epilepsy. Item analysis and exploratory factor analysis were performed. Internal consistency reliability, construct validity, and criterion-related validity were evaluated. Results: 17 items were retained in the optimized LCES. Internal consistency reliability was supported. Path analysis was used to evaluate construct validity. Criterion-related validity was supported by correlations with the Medical Outcomes SF-36 Survey (SF-36) General Health subscale and a criterion variable. Conclusions: The optimized version of the LCES can serve as a valuable outcome measure in clinical and research environments.

2019 ◽  
Vol 29 (06) ◽  
pp. 749-755
Author(s):  
Sara Arter ◽  
Elaine Miller ◽  
Tamilyn Bakas ◽  
David S Cooper

AbstractPurpose:Developmental care of neonates with CHD is essential for proper neurodevelopment. Measurement of developmental care specific to these neonates is needed to ensure consistent implementation within and across cardiac ICUs. The purpose of this study was to psychometrically test the Developmental Care Scale for Neonates with Congenital Heart Disease, which measures the quality of developmental care provided by bedside nurses to neonates in the cardiac ICU.Methods:Psychometric testing was conducted with 119 cardiac ICU nurses to provide evidence of internal consistency reliability and construct validity. Participants were predominantly young (median = 32 years), white (90%) females (93%) with bachelor’s degrees (78%) and a median experience in the cardiac ICU of 7 years.Results:Evidence of internal consistency reliability (α =.89) was provided with corrected item-total correlations ranging from .31 to .77. Exploratory factor analysis provided evidence of construct validity as a unidimensional scale, as well as a multidimensional scale consisting of four subscales: creating the external environment, assessment of family well-being, caregiver activities toward the neonate, and basic human needs.Conclusions:Evidence of reliability and validity of the 31-item Developmental Care Scale for Neonates with Congenital Heart Disease was established with nurses caring for neonates in the cardiac ICU. This instrument will serve as a valuable outcome measure tasked with improving developmental care performance and makes it possible to identify relationships between developmental care performance and neonatal neurodevelopmental outcomes in future research.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Aaron Yarlas ◽  
Michelle K. White ◽  
Danielle G. St. Pierre ◽  
Jakob B. Bjorner

Abstract Background The 12-item Medical Outcomes Study Sleep Scale (MOS Sleep Scale) has been used to capture patient-reported sleep problems in hundreds of studies. A revised version of the MOS Sleep Scale (MOS Sleep-R) was developed that uses simplified response sets, provides interpretable norm-based scoring, and has two recall versions (one-week or four-week). The objective of this study was to evaluate the psychometric properties (reliability and construct validity) of the MOS Sleep-R using data from a representative sample of U.S. adults. Methods Standardization of raw scores into norm-based T-scores (mean = 50, standard deviation = 10) was based on data from a 2009 U.S. internet-based general population survey. The internal consistency reliability of multi-item subscales and global sleep problems indices for both one-week and four-week recall forms of the MOS Sleep-R were examined using Cronbach’s alphas and inter-item correlations. Construct validity was tested by comparing item-scale correlations between items within subscales with item-scale correlations across subscales. Scale-level convergent validity was tested using correlations with measures including generic health-related quality of life (i.e., SF-36v2) and other relevant outcomes (e.g., job performance, number of days in bed due to illness or injury, happiness/satisfaction with life, frequency of stress/pressure in daily life, the impact of stress/pressure on health, and overall health). Results The one-week and four-week recall forms of the MOS Sleep-R were completed by 2045 and 2033 respondents, respectively. The psychometric properties of the one-week and four-week forms were similar. All multi-item subscales and global index scores showed adequate internal consistency reliability (all Cronbach’s alpha > 0.75). Patterns of inter-item and item-scale correlations support the scaling assumptions of the MOS Sleep-R. Patterns of correlations between MOS Sleep-R scores with criterion measures of health-related quality of life and other outcomes indicated adequate construct validity. Conclusions The MOS Sleep-R introduces a number of revisions to the original survey, including simplified response sets, the introduction of a one-week recall form, and norm-based scoring that enhances interpretability of scores. Both the one-week and four-week recall period forms of the MOS Sleep-R demonstrated good internal consistency reliability and construct validity in a U.S. general population sample.


2015 ◽  
Vol 12 (1) ◽  
pp. 1547
Author(s):  
Erkan Yaman

<p>The aim of this research is to develop the Interpersonal Attractiveness Scale and examine its validity and reliability. The sample of the study consisted of 1145 students from Sakarya University. In this study, construct validity, internal consistency, test-retest reliability, and item analysis of the scale were examined. As a result of factor analysis for construct validity, four factors have emerged which are named physical appearance, personal characteristics, the frequency of visual, and values. These subscales consist of 19 items and account for the 46% of the total variance. The internal consistency reliability coefficients were .77 for physical appearance, .74 for personal characteristics, .81 for the frequency of visual, and .74 for values. Findings also demonstrated that item-total correlations ranged from .40 to .72. Test-retest reliability coefficients were .38 and .60 for four subscales, respectively. The item-total correlations ranged from .40 to .72. According to these findings the Interpersonal Attractiveness Scale can be regarded as a valid and reliable instrument that could be used in the field of psychology.</p><p> </p><p><strong>Özet</strong></p><p>Bu araştırmanın amacı Kişilerarası Çekicilik Ölçeğini geliştirmek ve geçerlik, güvenirlik analizlerini yapmaktır. Araştırmanın örneklemini, Sakarya Üniversitesinde öğrenim gören 1145 üniversite öğrencisi oluşturmaktadır. Yapılan faktör analizi sonucunda toplam varyansın % 46’sını açıklayan, on dokuz madde ve dört alt boyuttan oluşan bir ölçme aracı elde edilmiştir. Bu alt boyutlar sırasıyla fiziksel görünüm, kişisel özellikler, görme sıklığı ve değerlerdir. Ölçeğin faktör yükleri .59 ile .74 arasında değişmektedir. İç tutarlık güvenirlik katsayıları fiziksel görünüm için .77, kişisel özellikler için .74, görme sıklığı için .81 ve değerler için .74 olarak hesaplanmıştır. Ölçeğin güvenirlik kat sayıları ise fiziksel görünüm için .38, kişisel özellikler için .42, görme sıklığı için .60 ve değerler için .53 olarak bulunmuştur. Madde analizi sonucunda alt ölçeklerin madde toplam puan korelasyonlarının .40 ile .72 arasında değiştiği görülmüştür. Bu bulgulara dayanarak Kişilerarası Çekicilik Ölçeği’nin psikolojik araştırmalarda kullanılabilecek, geçerli ve güvenilir bir ölçme aracı olduğu söylenebilir.</p>


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Pau Pérez-Sales ◽  
Raquel González-Rubio ◽  
Blanca Mellor-Marsá ◽  
Gonzalo Martínez-Alés

Abstract Background Torture methods have traditionally been quantified using checklists. However, checklists fail to capture accurately both the almost infinite range of available methods of torture and the victims’ subjective experience. The Torturing Environment Scale (TES) was designed as a multidimensional alternative that groups torture methods according to the specific human function under attack. This study aims to do an exploratory assessment of the internal consistency reliability and discriminatory validity of the TES as part of a construct validity assessment in a sample of Basque torture survivors. Methods We applied the TES to a sample of 201 torture survivors from the Istanbul Protocol Project in the Basque Country Study (IPP-BC) to profile torturing environments in detention. To estimate the internal consistency reliability of the scale, categorical omega values were obtained for each subscale of the TES. To assess its discriminatory validity, the “known groups” method was used comparing mean scorings by gender, state security forces involved in the detention, and decade (the 1980s to the present) when the events took place. Results Men reported more physical pain, while women reported more attacks on self-identity and sexual integrity. The TES also showed significant differences as regards the security forces involved in the detention: Civil Guard (a militarised police) used more manipulation of the environment, threats, fear, pain and extreme pain, as compared to national and regional corps. Finally, although patterns of torture remained mostly unchanged across decades, more recent detentions included more emphasis on psychological attacks: context manipulation, humiliation linked to sexual identity, and attacks to meaning and identity. For all subscales of the TES, categorical omega values ranged from 0.44 to 0.72. Conclusion The TES may be a useful tool in profiling torturing environments. Its sensitivity to key contextual variables supports the discriminatory validity of the scale. While some of the subscales showed an acceptable degree of internal consistency, others require further analysis to improve reliability. The scale provides unique insights into the profile of contemporary torture. It will allow for future quantitative research on the relationship between different torturing environments and the medical and psychological consequences thereof.


2004 ◽  
Vol 12 (3) ◽  
pp. 179-193
Author(s):  
Christine Toye ◽  
Linda J. Kristjanson ◽  
Mardhie E. Coleman ◽  
Hendrika Maltby ◽  
Glenda Jackson

This study refined the Support Needs Inventory for Parents of Asthmatic Children (SNIPAC) (Coleman, Maltby, Kristjanson, & Robinson, 2001) to produce a more parsimonious tool to assess the importance and meet the support needs of parents of children with asthma. The original tool was completed by 145 parents of 199 children with asthma, and 74 of these also provided test-retest responses. Internal consistency reliability, construct validity, and stability over time were assessed and refinements were made. Internal consistency reliability of the revised 20-item tool ranged from .77 to .95 for the three subscales of the Parent’s Priority Scale (PPS), and .92 for the full PPS. Cronbach’s alphas ranged from .74 to .90 for the three subscales of the Parent’s Fulfillment Scale (PFS) and was .91 for the full scale. Factor analysis results of the PPS were compatible with the tool’s conceptual framework. The revised 20-item tool demonstrated adequate psychometric properties in most areas. This tool may be used for research or clinical screening without imposing undue burden on parents. Further work is required to establish the tool’s stability over time.


2017 ◽  
Vol 32 (2) ◽  
Author(s):  
Shannon Gwin ◽  
Paul Branscum ◽  
E. Laurette Taylor

The purpose of this study was to create a valid and reliable instrument to evaluate theory-basedbeliefs towards physical activity among clergy members. Data were collected from 174 clergy that par-ticipated in a 15-item online and paper-based survey. Psychometric properties of the instrument includedconfirmatory factor analysis (construct validity), and cronbach’s alpha (internal consistency reliability).In addition, the stability (test-retest reliability) of each subscale was evaluated with a sub-sample of 30participants. Results show the instrument was both valid and reliable, and will be useful in future studiestargeting this population. Future implications are discussed.


1995 ◽  
Vol 4 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Thomas W. Powell

This paper describes a 64-item clinical screening task designed to assess the accuracy of children's consonant cluster productions. This procedure is designed to help speech-language pathologists develop intervention programs to improve children's production of clusters by facilitating the identification of error patterns. Once such patterns have been identified, individualized treatment programs designed to maximize generalization may be developed. The task was administered to 100 4- and 5-year-old subjects to assess the technical adequacy of the procedure. Internal consistency reliability of the task was high, and the procedure was also shown to assess an appropriately diverse array of word-initial and word-final consonant clusters. Finally, the construct validity of the task was supported by factor analytic procedures.


2007 ◽  
Author(s):  
Γεώργιος Γκουδέλης

O σκοπός της διατριβής αυτής είναι η μετάφραση από την Αγγλική στην Ελληνική γλώσσα και η προσαρμογή του στην κουλτούρα και τον τρόπο ζωής των Ελλήνων του ερωτηματολογίου DASH (The Disabilities of the Arm Shoulder and Hand) της Αμερικανικής Ορθοπεδικής Εταιρείας που αφορά στην αξιολόγηση της λειτουργικής ικανότητας του άνω άκρου. Ακολούθως διενεργείται η στατιστική τεκμηρίωσης αυτού όσον αφορά στο κύρος (validity) και την αξιοπιστία (reliability) σε 100 Έλληνες ασθενείς και η σύγκρισή του με το ήδη τεκμηριωμένο διεθνώς ερωτηματολόγιο SF-36 το οποίο αξιολογεί την σε σχέση με την υγεία ποιότητα ζωής των ασθενών με προβλήματα του μυοσκελετικού συστήματος. Ο παράγοντας αξιοπιστίας internal consistency των 30 ερωτήσεων του DASH εκτιμώμενος από τον δείκτη Cronbach ήταν 0,96 η οποία φανερώνει την μεγάλη αξιοπιστία και τα αμελητέα λάθη μέτρησης των μεταφρασμένων DASH. Η αξιοπιστία καθορίστηκε υπολογίζοντας 4 παράγοντες: 1) τον συντελεστή συσχέτισης του Pearson, 2) t-test κατά ζεύγη, 3) συντελεστή συσχέτισης του Kental tau-b και 4) δείκτη Cohen Kappa. Η μελέτη αξιολόγησης της εγκυρότητας έγινε με τρείς παραμέτρους: 1) Construct validity, 2) treatment effect validity, 3) known group validity. Η Ελληνική έκδοση του DASH και το Quick DASH είναι διαθέσιμες στο διαδίκτυο και μπορούν να χρησιμοποιηθούν στην κλινική πρακτική ή την έρευνα.


2020 ◽  
Author(s):  
Takuya Aoki ◽  
Yosuke Yamamoto ◽  
Tomoaki Nakata

Objectives. The Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) is a well-established and internationally recognized scale for measuring patient experience with hospital inpatient care. This study aimed to develop a Japanese version of the HCAHPS and to examine its structural validity, criterion-related validity, and internal consistency reliability. Design. Multicenter cross-sectional study. Setting. A total of 48 hospitals in Japan. Participants. Patients aged ≥ 16 years who were discharged from the participating hospitals. Results. We translated the HCAHPS into Japanese according to the guidelines. Psychometric properties were examined using data from 6,522 patients. A confirmatory factor analysis showed excellent goodness of fit of the same factor structure as that of the original HCAHPS, with the following composites: communication with nurses, communication with doctors, responsiveness of hospital staff, hospital environment, communication about medicines, and discharge information. All hospital-level Pearson correlation coefficients between the Japanese HCAHPS composites and overall hospital rating exceeded the criteria. Results of inter-item correlations indicated adequate internal consistency reliability. Conclusions. We developed the Japanese HCAHPS, and evaluated its structural validity, criterion-related validity, and internal consistency reliability. This scale could be used for quality improvement based on the assessment of patient experience with hospital care and for health services research in Japan.


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