scholarly journals Metacognitive Rating Scale: A Study Applying a Korean Translation to Individuals with Schizophrenia

2021 ◽  
Vol 18 (13) ◽  
pp. 6853
Author(s):  
Mihwa Han ◽  
Kyunghee Lee ◽  
Mijung Kim ◽  
Youngjin Heo ◽  
Hyunseok Choi
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Mental Status ◽  
Rating Scale ◽  
Anger Expression ◽  
Principal Component ◽  
Negative Beliefs ◽  
Five Factors ◽  
Metacognitive Beliefs

Metacognition is a higher-level cognition of identifying one’s own mental status, beliefs, and intentions. This research comprised a survey of 184 people with schizophrenia to verify the reliability of the metacognitive rating scale (MCRS) with the revised and supplemented metacognitions questionnaire (MCQ) to measure the dysfunctional metacognitive beliefs of people with schizophrenia by adding the concepts of anger and anxiety. This study analyzed the data using principal component analysis and the varimax method for exploratory factor analysis. To examine the reliability of the extracted factors, Cronbach’s α was used. According to the results, reliability was ensured for five factors: positive beliefs about worry, negative beliefs about uncontrollability and danger of worry, cognitive confidence, need for control, and cognitive self-consciousness. The negative beliefs about uncontrollability and danger of worry and the need for control on anger expression, which were both added in this research, exhibited the highest correlation (r = 0.727). The results suggest that the MCRS is a reliable tool to measure the metacognition of people with schizophrenia.

scholarly journals 545 - Exploratory factor analysis of the Rowland Universal Dementia Assessment Scale.

2021 ◽  
Vol 33 (S1) ◽  
pp. 87-88
Author(s):  
J. Antonio Garcia-Casal ◽  
Natacha Coelho de Cunha Guimarães ◽  
Sofía Díaz Mosquera ◽  
María Alvarez Ariza ◽  
Raimundo Mateos Álvarez
Keyword(s):  
Factor Analysis ◽  
Construct Validity ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Principal Components ◽  
Principal Component ◽  
Assessment Scale ◽  
Cognitive Test ◽  
Five Factors ◽  
Bartlett’S Test

Background:Rowland Universal Dementia Assessment Scale (RUDAS) is a brief cognitive test, appropriate for people with minimum completed level of education and sensitive to multicultural contexts. It could be a good instrument for cognitive impairment (CI) screening in Primary Health Care (PHC). It comprises the following areas: recent memory, body orientation, praxis, executive functions and language.Research Objective:The objective of this study is to assess the construct validity of RUDAS analysing its internal consistency and factorial structure.Method:Internal consistency will be calculated using ordinal Cronbach’s α, which reflects the average inter-item correlation score and, as such, will increase when correlations between the items increase. Exploratory Factor Analysis will be used to arrange the variables in domains using principal components extraction. The factorial analysis will include the extraction of five factors reflecting the neuropsychological areas assessed by the test. The result will be rotated under Varimax procedure to ease interpretation.Exploratory factor analysis will be used to arrange the variables in domains using principal components extraction. The analysis will include Kaiser–Meyer–Olkin measure of sampling adequacy and Bartlett’s test of sphericity. Estimations will be based based on Pearson’s correlations between indicators using a principal component analysis and later replicated with a tetrachoric correlation matrix. The variance in the tetrachoric model will be analysed to indentify convergent iterations and their explicative power.Preliminary results of the ongoing study:RUDAS is being administered to 321 participants older than 65 years, from seven PHC physicians’ consultations in O Grove Health Center. The data collection will be finished by August 2021 and in this poster we will present the final results of the exploratory factor analysis.Conclusions:We expect that the results of the exploratory factor analysis will replicate the results of previous studies of construct validity of the test in which explanatory factor weights were between 0.57 and 0.82, and all were above 40%. Confirming that RUDAS has a strong factor construct with high factor weights and variance ratio, and 6-item model is appropriate for measurement will support its recommendation as a valid screening instrument for PHC.

scholarly journals Exploring Factor Structures Of A Thinking Questionnaire

2020 ◽  
Vol 31 ◽  
pp. 35-53
Author(s):  
Hazlina Abdullah
Keyword(s):  
Principal Component Analysis ◽  
Monte Carlo ◽  
Factor Analysis ◽  
Undergraduate Students ◽  
Principal Component ◽  
Parallel Analysis ◽  
Factor Solution ◽  
Self Reflection ◽  
Five Factors ◽  
Strongly Agree

The purpose of this study was to investigate the construct validity of a thinking questionnaire through Factor Analysis over a Malaysian university students’ sample. The questionnaire is a 5 point Likert scale survey ranging from Strongly Agree, Agree, Neutral, Disagree and Strongly Disagree, intended to measure students’ self-reflection on their thinking upon their Invention Project. A total of 350 undergraduate students from various faculties participated in this study. Principal Component Analysis was used because the primary purpose was to identify and compute composite thinking scores for the factors underlying the Thinking questionnaire. The five factor solution, which explained 52.4% of the variance was chosen because of the ‘levelling off’ of eigenvalues on the scree plot after five factors, and was also confirmed by the Monte Carlo Parallel Analysis which indicated smaller values of the 5 factors compared to the eigenvalues displayed in the SPSS.

scholarly journals Workshop Analisis Faktor untuk Data Penelitian Ilmu Sosial dan Kependidikan

2021 ◽  
Vol 5 (1) ◽  
pp. 37-46
Author(s):  
Dhoriva Urwatul Wutsqa ◽  
Kismiantini Kismiantini ◽  
Muhammad Fauzan ◽  
Rosita Kusumawati ◽  
Sahid Sahid ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Confirmatory Factor

Kegiatan PPM ini bertujuan memberikan pelatihan penggunaan program R dan SPSS dalam penelitian data ilmu sosial dan kependidikan kepada para praktisi lulusan S1, mahasiswa pasca sarjana, dan dosen di lingkungan universitas di Yogyakarta. Penelitian dalam ilmu sosial dan kependidikan seringkali melibatkan banyak variabel yang saling berkorelasi maupun mempunyai korelasi yang tinggi, misalnya dalam pengembangan suatu instrument penelitian. Penghapusan variabel yang mempunyai korelasi tinggi bisa mengakibatkan hilangnya informasi, untuk mengatasi hal tersebut dapat digunakan analisis komponen utama (Principal Component Analysis/PCA). Sedangkan dalam hal menentukan konstruk yang sesuai dari butir-butir soal yang terbentuk dapat dilakukan dengan dua pendekatan yaitu analisis faktor eksplorasi (Exploratory Factor Analysis/EFA) dan analisis faktor konfirmasi (Confirmatory Factor Analysis/CFA). Permasalahan yang terkait dengan reduksi variabel dan pembentukan konstruk pada pengembangan instrument ini merupakan hal yang sangat penting dalam penelitian ilmu sosial dan kependidikan.  Sehingga suatu metode analisis PCA, EFA, dan CFA dengan menggunakan program R dan SPSS mutlak diperlukan. Workshop yang diikuti oleh 26 peserta peserta ini dapat berjalan dengan baik. Berdasarkan pelaksanaan dan evaluasi kegiatan ini dapat disimpulkan bahwa tujuan dapat tercapai dengan baik.

scholarly journals Structural Validity of the Mini-Balance Evaluation Systems Test (Mini-BESTest) in People With Mild to Moderate Parkinson Disease

2016 ◽  
Vol 96 (11) ◽  
pp. 1799-1806 ◽  
Author(s):  
Martin Benka Wallén ◽  
Kimmo Sorjonen ◽  
Niklas Löfgren ◽  
Erika Franzén
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Parkinson Disease ◽  
Exploratory Factor Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Balance Test ◽  
Evaluation Systems ◽  
Confirmatory Factor

Abstract Background The Mini-Balance Evaluation Systems Test (Mini-BESTest) is a clinical balance test comprising 14 items assumed to reflect the unidimensional construct “dynamic balance.” Objective The study objective was to examine the dimensionality of the test and the properties of each item and their interrelationships in elderly people with mild to moderate Parkinson disease (PD). Design This was a cross-sectional study in a laboratory setting. Methods A total of 112 participants (mean age=73 years) with idiopathic PD (Hoehn and Yahr stages 1–3) were assessed by physical therapists. Local independence among items was examined with Rasch modeling. Unidimensionality was tested by running a principal component analysis on the residuals. An exploratory factor analysis was used to examine the structure of the test, and a confirmatory factor analysis was used to evaluate the fit of the derived model. Results The first residual component of the principal component analysis, with an eigenvalue of greater than 2, superseded the assumption of unidimensionality. After the omission of item 7 because of convergence problems, the exploratory factor analysis suggested that a 3-factor solution best fit the data. A confirmatory factor analysis demonstrated acceptable fit of the final model, although item 14 loaded poorly on its factor. Limitations The sample size was on the lower end of what is generally recommended. Conclusions This study could not confirm that the Mini-BESTest is unidimensional. Gait items were dispersed over all factors, indicating that they may reflect different constructs. Nonetheless, as there arguably is no clinical balance test superior to the Mini-BESTest today, we recommend using the total score for assessing gross balance in this population and individual items to identify specific weaknesses. Moreover, dual tasks should be assessed separately because they are an important aspect of balance control in people with PD, reflected in only one item of the test.

scholarly journals Underlying Structure of Online Risks and Harm among Bangladeshi Teenagers

2020 ◽  
Vol 3 (1) ◽  
pp. 7-14
Author(s):  
Taslim Taher ◽  
Mohd Adam Suhaimi ◽  
Nurul Nuha Abdul Molok
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Young People ◽  
Reliability Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Emotional Problems ◽  
Principal Component ◽  
Underlying Structure ◽  
Varimax Rotation

This paper gives an account of the consequences of the procedure of EFA (exploratory factor analysis) invoking online risks as well as harm information acquired by an overview of 443 adolescents in Bangladesh. The information was gathered utilizing a 42-item, adjusted Likert survey investigating the critical variables. PCA (Principal Component Analysis) with Varimax rotation was chosen by the researcher to accomplish it. Based on data, the procedure took out the crucial factors social, religiosity, psychological, online risks as well as harm. 65.594% of the variance was clarified by these nine dimensions together. The procedure of reliability analysis generated internal consistency estimates which may be considered acceptable. The range was found from 0.625 which belongs to Emotional Problems to 0.930 which belongs to Online Risks. These discoveries give comprehensive justification to build the legitimacy for the items. The presence of the components influencing altogether the young people online in Bangladesh has been identified as well.

Essays in financial econometrics

2021 ◽  
Author(s):  
Αντώνιος Σαραντίδης
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Principal Component ◽  
Financial Econometrics ◽  
Component Analysis

Η οικονομική κρίση/ύφεση και η πολιτική αστάθεια είναι δύο αλληλένδετες έννοιες με κοινά χαρακτηριστικά. Η πρόσφατη χρηματοπιστωτική και οικονομική κρίση χαρακτηρίζεται από μια περίπλοκη σχέση μεταξύ μακροοικονομικής και πολιτικής αστάθειας. Η μία αστάθεια αναπαράγει την άλλη, συχνά με ανατροφοδότηση, η οποία δημιουργεί αυτόνομους κύκλους.Αυτή η διατριβή πιστεύει ότι η πολιτική αστάθεια και οι οικονομικές κρίσεις/υφέσεις έχουν άμεση σχέση, διότι χωρίς ένα σταθερό πολιτικό περιβάλλον, οι κρίσεις είναι δύσκολο να αντιμετωπιστούν σε μια χώρα. Επιπλέον, αυτές ενδέχεται να επηρεάσουν αρνητικά το πολιτικό σύστημα, οδηγώντας έτσι σε πολιτική αστάθεια. Υποστηρίζεται επίσης μια ισχυρή σχέση μεταξύ των οικονομικών κρίσεων/υφέσεων καθώς και της πολιτικής αστάθειας.Λαμβάνοντας υπόψη τα ανωτέρω, ο σκοπός αυτής της διατριβής μπορεί να προσδιοριστεί με δύο τρόπους α) την εκτίμηση του αντίκτυπου της πρόσφατης οικονομικής κρίσης και ύφεσης του 2007/2008, που μετρήθηκε με διάφορους τρόπους, στο χρηματιστήριο, χρησιμοποιώντας διαφορετικές καινοτόμες οικονομετρικές μεθοδολογίες και διατηρώντας το δείγμα σταθερό και β) την αντιμετώπιση του προβλήματος της πολυδιάστατης πολιτικής αστάθειας προτείνοντας νέα μέτρα και δείκτες πολιτικής αστάθειας, προκειμένου να εκτιμηθεί ο αντίκτυπός στην χρηματοπιστωτική αγορά, την αύξηση του ΑΕΠ και τις άμεσες ξένες επενδύσεις.Το εμπειρικό μέρος ξεκινά με τη χρήση των Differences-in-Differences (DID) και Changes-in-Changes (CIC) προσεγγίσεων, για να εκτιμηθεί ο αντίκτυπος της οικονομικής κρίσης/ύφεσης στους τραπεζικούς και γενικούς χρηματιστηριακούς δείκτες. Οι περίοδοι της πρόσφατης κρίσης μετρήθηκαν με τέσσερις διαφορετικούς τρόπους και ελήφθησαν από διάφορες βάσεις δεδομένων που χρησιμοποιούνται στην αντίστοιχη βιβλιογραφία. Συνεχίζει με τη χρήση διαφόρων μεταβλητών πολιτικής αστάθειας από την αντίστοιχη βιβλιογραφία, για την δημιουργία πέντε νέων δεικτών πολιτικής αστάθειας. Χρησιμοποιούνται η Exploratory Factor Analysis και η Principal Component Analysis. Οι δείκτες εφαρμόστηκαν στις χρηματιστηριακές αγορές, την μεταβλητότητά τους, την αύξηση του ΑΕΠ και τις άμεσες ξένες επενδύσεις, ώστε να εκτιμηθεί ο πιθανός αντίκτυπός του.Τα αποτελέσματα της εκτίμησης παρέχουν επιβεβαιωτικά στοιχεία για την εγκυρότητα της προτεινόμενης θεωρίας. Τα συμπεράσματα παρέχουν επίσης στοιχεία ότι οι κρίσεις/υφέσεις επηρεάζουν άμεσα τις χρηματοπιστωτικές αγορές και ότι η πολιτική αστάθεια είναι ένα πολυδιάστατο πρόβλημα που ποικίλλει από χώρα σε χώρα.

Sign in / Sign up

Export Citation Format

Share Document