Validity of a Shortened Test Battery for Evaluating Ambulation and Transfer Activities in Post-Stroke Patients by Means of Principal Component Analysis and Cronbach’s Alpha Coefficient

2005 ◽  
Vol 32 (1) ◽  
pp. 55-70 ◽  
Author(s):  
Kazuhiko Shimizu ◽  
Masuo Shirataka ◽  
Hisako Tajiri ◽  
Hayato Tanabe ◽  
Hideo Miyahara
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Test Battery ◽  
Alpha Coefficient ◽  
Stroke Patients ◽  
Cronbach’S Alpha ◽  
Post Stroke ◽  
Cronbach's Alpha

General Health Questionnaire-12 items: adaptation study to the Portuguese population

2008 ◽  
Vol 17 (2) ◽  
pp. 148-151 ◽  
Author(s):  
Carlos António Laranjeira
Keyword(s):  
Principal Component Analysis ◽  
Factor Structure ◽  
Convergent Validity ◽  
Principal Component ◽  
Well Being ◽  
Component Analysis ◽  
Test Reliability ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha

SummaryAims – To assess the validity and reliability of the GHQ-12 in Portugal. Methods – Using a standard ‘forwardbackward’ translation procedure, the English language version of the questionnaire was translated into Portuguese. To test reliability the internal consistency was assessed by Cronbach's alpha coefficient. Validity was performed using convergent validity. Finally, the factor structure of the questionnaire was extracted by performing principal component analysis using varimax rotation. Results – In all 790 undergraduates entered into the study. Reliability analysis showed satisfactory result (Cronbach's alpha coefficient = 0.91). Convergent validity indicated a significant negative correlation between the GHQ-12 and social support scores as expected (r = -0.54, P < 0.001). The principal component analysis showed that the GHQ-12 was a measure with two-factor structure. Conclusion – The Portuguese version of the GHQ-12 has a good structural characteristic for measuring psychological well being.Declaration of Interest: None.

scholarly journals The Translation and Validation of the Dutch Monash Dog–Owner Relationship Scale (MDORS)

Animals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 249
Author(s):  
Emmy A.E. van Houtert ◽  
Nienke Endenburg ◽  
Joris J. Wijnker ◽  
T. Bas Rodenburg ◽  
Hein A. van Lith ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Factor Model ◽  
Principal Component ◽  
Component Analysis ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Dutch Translation ◽  
English Speaking ◽  
Translation And Validation ◽  
Three Factor

The Monash Dog–Owner Relationship Scale (MDORS) is a questionnaire that is used to evaluate the perceived relationship between humans and their dog. This questionnaire was originally only formulated and validated in English, which limits its use among non-English speaking individuals. Although a translation could be made, the translation of questionnaires without additional validation often impairs the reliability of that questionnaire. Therefore, the aim of this study was to validate a translation of the MDORS that is suitable for use among native Dutch speakers. To achieve this, a Dutch translation of the MDORS was made and checked for spelling/grammar mistakes, readability, feasibility, and clarity. A test–retest comparison was subsequently performed on the translation together with a calculation of Cronbach’s alpha score and principal component analysis (PCA). Through the PCA, we found that the three-factor model of the original MDORS was also largely present in the Dutch translation. However, deviations were also found, as several questions did not achieve high PCA scores in their original factor. Therefore, we propose that these questions are excluded from the Dutch MDORS.

scholarly journals Pengembangan Skala Pemaafan Diri (Self-forgiveness)

2020 ◽  
Vol 2 (1) ◽  
pp. 80-90
Author(s):  
Dyah Ayu Larasati ◽  
Tria Widyastuti
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Self Forgiveness

Individu memiliki cara yang berbeda dalam merespon kesalahan yang diperbuat. Ada yang cepat memaakan kesalahan diri sendiri, namun ada yang butuh waktu lama atau bahkan membenci diri sendiri karena kesalahan yang diperbuat. Konsep penting terkait hal tersebut yaitu pemaafan diri yang ternyata berimbas positif pada kesejahteraan psikologis dan kesehatan mental. Pengukuran pemaafan diri kemudian menjadi penting untuk mendukung semakin banyaknya penelitian pemaafan diri. Namun begitu, meski di luar sudah dikembangkanbeberapa skala pemaafan diri, di Indonesia belum banyak ditemukan penelitian yang khusus mengembangkan atau mengadaptasi skala ini. Dalam tulisan ini, peneliti bertujuan mengembangkan skala pemaafan diri yang diharapkan menjadi alat ukur yang valid dan reliabel. Peneliti melakukan tujuh tahapan pengembangan skala yaitu: (1) penentuan konstrak ukur, (2) penyusunan indikator-aitem, (3) pengujian validitas isi, (4) uji coba, (5) uji lapangan, (6) seleksi aitem, dan (7) penyusunan skala final. Hasil akhir penelitian ini dihasilkan 13 aitem skala pemaafan diriyang memiliki daya beda berkisar .337 hingga .676 dan reliabilitas Cronbach’s alpha ditemukan .798 (dimensi mengakui tanggung jawab) dan .779 (dimensi memperbarui diri). Skala pemaafan diri juga memiliki struktur internal yang cukup baik. Hasil analisis faktor dengan principal component analysis pada 13 aitem didapat nilai KMO=.833, Barlett’s Test of sphrecity X2(78)=447.594, p<.01. Dua dimensi pemaafan diri mampu menjelaskan sebesar 49.891% varian.

scholarly journals Pengembangan Skala Deception Behavior in Social Media

2020 ◽  
Author(s):  
Clara Moningka ◽  
Maria Selviana
Keyword(s):  
Social Media ◽  
Principal Component Analysis ◽  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Confirmatory Factor

Kemajuan teknologi Internet di dunia memunculkan fenomena baru dalam penggunaan media sosial. Media sosial tidak hanya digunakan untuk berhubungan dengan orang lain, namun juga untuk membentuk kesan yang baik, bahkan untuk melakukan manipulasi. Pengguna media sosial seringkali memanipulasi penampakan mereka di media sosial, seperti mengedit foto atau memalsukan identitas mereka. Fenomena ini termasuk dalam Deception Behavior (perilaku menipu). Meski fenomena ini sering dijumpai, belum banyak studi yang berupaya untuk mengukur kecenderungan seseorang untuk terlibat dalam perilaku menipu di media sosial. Oleh karena itu, penelitian ini bertujuan untuk membuat skala Deception Behavior in Social Media berdasarkan teori Utz (2005). Partisipan penelitian adalah pengguna aktif media sosial sebanyak 457 orang di wilayah Jabodetabek dengan rentang usia 15-40 tahun. Penelitian ini meliputi pembuatan butir dan pengujian dengan menggunakan Principal Component Analysis (PCA), dilanjutkan dengan Confirmatory Factor Analysis (CFA). Sementara itu, reliabilitas diuji dengan menggunakan koefisien Cronbach’s Alpha. Hasil penelitian menunjukkan bahwa skala ini reliabel untuk mengukur deception behavior di media sosial.

scholarly journals Study of risk factors for healthcare-associated infections in acute cardiac patients using categorical principal component analysis (CATPCA)

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Emilio Renes Carreño ◽  
Almudena Escribá Bárcena ◽  
Mercedes Catalán González ◽  
Francisco Álvarez Lerma ◽  
Mercedes Palomar Martínez ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Heart Disease ◽  
Principal Component ◽  
Component Analysis ◽  
Apache Ii Score ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Icu Stay ◽  
Categorical Principal Component Analysis ◽  
Using Data

AbstractUsing categorical principal component analysis, we aimed to determine the relationship between health care-associated infections (HAIs) and diagnostic categories (DCs) in patients with acute heart disease using data collected in the Spanish prospective ENVIN-HELICS intensive care registry over a 10-year period (2005–2015). A total of 69,876 admissions were included, of which 5597 developed HAIs. Two 2-component CATPCA models were developed. In the first model, all cases were included; the first component was determined by the duration of the invasive devices, the ICU stay, the APACHE II score and the HAIs; the second component was determined by the type of admission (medical or surgical) and by the DCs. No clear association between DCs and HAIs was found. Cronbach’s alpha was 0.899, and the variance accounted for (VAF) was 52.5%. The second model included only admissions that developed HAIs; the first component was determined by the duration of the invasive devices and the ICU stay; the second component was determined by the inflammatory response, the mortality in the ICU and the HAIs. Cronbach’s alpha value was 0.855, and VAF was 46.9%. These findings highlight the role of exposure to invasive devices in the development of HAIS in patients with acute heart disease.

scholarly journals A new methodology based on functional principal component analysis to study postural stability post-stroke

2018 ◽  
Vol 56 ◽  
pp. 18-26 ◽  
Author(s):  
M. Luz Sánchez-Sánchez ◽  
Juan-Manuel Belda-Lois ◽  
Silvia Mena-del Horno ◽  
Enrique Viosca-Herrero ◽  
Celedonia Igual-Camacho ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Postural Stability ◽  
Principal Component ◽  
Component Analysis ◽  
Functional Principal Component Analysis ◽  
Post Stroke ◽  
Functional Principal Component

Psychometric Evaluation of the Attitudes to Disability Scale for Use With Nurse Educators

2016 ◽  
Vol 24 (3) ◽  
pp. 465-476 ◽  
Author(s):  
Lori Lyon ◽  
Rick Houser
Keyword(s):  
Principal Component Analysis ◽  
Nurse Educators ◽  
Principal Axis ◽  
Psychometric Evaluation ◽  
Principal Component ◽  
Original Form ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Disability Scale ◽  
Principal Axis Factor

Background and Purpose: This article tests the construct validity of the Attitudes to Disability Scale (ADS) for use with nurse educators. The ADS was designed to assess the attitudes of people with disabilities and the general population. Methods: The responses of 126 nurse educators were analyzed using multivariate statistics. Results: Reliability analysis of the original ADS factors yielded Cronbach’s alpha of .655, .689, .781, and .621 (Inclusion, Discrimination, Gains, and Prospects, respectively). Principal component analysis confirmed factors Discrimination and Gains and identified two new factors. Principal axis factor confirmed Discrimination and Gains and defined one new factor (Opportunity) with a Cronbach’s alpha of .73. Conclusions: The original form ADS is not reliable for use with nurse educators although a modified version may prove suitable.

Principal Component Analysis of Working Memory Variables during Child and Adolescent Development

2016 ◽  
Vol 19 ◽  
Author(s):  
Catarina I. Barriga-Paulino ◽  
Elena I. Rodríguez-Martínez ◽  
María Ángeles Rojas-Benjumea ◽  
Carlos M. Gómez
Keyword(s):  
Principal Component Analysis ◽  
Working Memory ◽  
Memory Performance ◽  
Principal Component ◽  
Component Analysis ◽  
Test Battery ◽  
Childhood And Adolescence ◽  
Behavioral Measures ◽  
Age Related ◽  
Speed Accuracy

AbstractCorrelation and Principal Component Analysis (PCA) of behavioral measures from two experimental tasks (Delayed Match-to-Sample and Oddball), and standard scores from a neuropsychological test battery (Working Memory Test Battery for Children) was performed on data from participants between 6–18 years old. The correlation analysis (p < .05) results showed a common maturational trend in working memory performance between these two types of tasks. Applying PCA (Eigenvalues > 1), the scores of the first extracted component were significantly correlated (p < .05) to most behavioral measures, suggesting some commonalities of the processes of age-related changes in the measured variables. The results suggest that this first component would be related to age but also to individual differences during the cognitive maturation process across childhood and adolescence stages. The fourth component would represent the speed-accuracy trade-off phenomenon as it presents loading components with different signs for reaction times and errors.

scholarly journals Validity and Reliability of the Persian Versions of National Institute of Health Stroke Scale and Modified National Institute of Health Stroke Scale in Hospitalized Patients

2019 ◽  
Vol 8 ◽  
pp. 1188
Author(s):  
Reza Dehghani ◽  
Afshin Borhanihaghighi ◽  
Abdolhamid Shariat ◽  
Mohammad Nami ◽  
Masoume Nazeri ◽  
...  
Keyword(s):  
Convergent Validity ◽  
Reliability And Validity ◽  
Hospitalized Patients ◽  
Stroke Severity ◽  
Validity And Reliability ◽  
Alpha Coefficient ◽  
Stroke Patients ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
The Face

Background: National Institute of Health Stroke Scale (NIHSS) and Modified National Institute of Health Stroke Scale (mNIHSS) are two valid and reliable questionnaires that assess stroke severity. This study aimed to examine and compare the validity and reliability of Persian versions of NIHSS and mNIHSS in hospitalized patients. Materials and Methods: The English versions of NIHSS and mNIHSS were translated to Persian (forward and backward), and three neurologists examined the face and content validity of both questionnaires. The Persian versions of NIHSS and mNIHSS were used in75 hospitalized stroke patients (hemorrhagic and obstructive) admitted to Namazi teaching hospital, Shiraz, Iran.The reliability and validity of the Persian versions were examined by Cronbach's alpha coefficient and convergent validity. Result: The values of Cronbach's alpha for Persian versions of NIHSS and mNIHSS were 0.81 and 0.86, respectively. The scaling success of convergent validity in NIHSS and mNIHSS were 80% and 100%, respectively. Conclusion: The Persian versions of NIHSS and mNIHSS were reliable and valid. However, mNIHSS was more valid and reliable than NIHSS. Persian version of mNIHSS can be suggested to be used for assessing stroke severity in hospitalized stroke patients by neurologists and researchers. [GMJ. 2019;8:e1188]

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