Admissible values of γ in direct oblimin rotation

Psychometrika ◽  
1979 ◽  
Vol 44 (2) ◽  
pp. 173-177 ◽  
Author(s):  
Robert I. Jennrich
Keyword(s):  
Oblimin Rotation ◽  
Direct Oblimin

Factor Structure of the Smith Irrational Beliefs Inventory: Results of Analyses on Six Independent Samples

2004 ◽  
Vol 95 (2) ◽  
pp. 696-704 ◽  
Author(s):  
Jonathan C. Smith ◽  
Sarah M. Rausch ◽  
Julie D. Jenks Kettmann
Keyword(s):  
Irrational Beliefs ◽  
Irrational Belief ◽  
Self Esteem ◽  
Clinical Samples ◽  
Factor Analyses ◽  
Student Sample ◽  
Factor Analytic ◽  
Oblimin Rotation ◽  
The Subject ◽  
Direct Oblimin

This study reports the results of six factor analyses (alpha factoring, direct oblimin rotation, Delta = .4) on six items from the Smith Irrational Beliefs Inventory. Six independent samples of 1851 college students (521 men, 1,280 women, 50 sex unstated) were tested. Three factors emerged with identical content for each analysis. Distorted Egocentrism was defined by two items reflecting feelings of entitlement and the naïve assumption that events should always turn out favorably the way one desires; Task Exaggeration/Catastrophizing was defined by two items directly depicting a tendency to view challenges as overwhelming and catastrophic; and Isolated Low Self-esteem was defined by two items expressing the feeling that one has unacceptable feelings that could lead to isolation or rejection. Previous research on other irrational belief inventories has yielded inconsistent results, with multifactorial solutions emerging for clinical samples and unifactoral solutions for student samples. That the present six factor analytic studies yielded a consistent multifactoral set of irrational beliefs for a very large student sample suggests that factors do emerge when items are initially screened and the subject population is carefully defined.

Factor Replication of the Reduced Laffrey Health Conception Scale

2000 ◽  
Vol 8 (2) ◽  
pp. 105-116 ◽  
Author(s):  
Oi Saeng Hong ◽  
Sally L. Lusk ◽  
Laura Klem
Keyword(s):  
Factor Analysis ◽  
Structural Equation Modeling ◽  
Structural Equation ◽  
Factor Model ◽  
Covariance Matrices ◽  
Construction Workers ◽  
Equation Modeling ◽  
Factory Workers ◽  
Oblimin Rotation ◽  
Direct Oblimin

This study replicated the factor model for the Reduced Laffrey Health Conception Scale (RLHCS), which was originally developed by Laffrey (1986) and reduced by Lusk, Kerr, and Baer (1995). Two independent samples of construction workers (n - 697 and n = 510) were used. The samples were predominately Caucasian males (over 97%), with mean ages of 35 and 38 years, respectively. Principal components factor analysis with direct oblimin rotation and structural equation modeling were used to replicate factors and to test the equality of the three observed covariance matrices (factory workers and two groups of construction workers), respectively. Results replicated the two-factor structure (clinical health and overall wellness) found in the earlier study with factory workers (Lusk et al., 1995) and demonstrated factor in variance across different samples.

Death Anxiety and Death Depression in Spanish Nurses

2005 ◽  
Vol 97 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Joaquín Tomás-Sá Bado ◽  
Juana Gómez-Benito
Keyword(s):  
Death Anxiety ◽  
Discriminant Validity ◽  
Depression Scale ◽  
Dimensional Structure ◽  
Five Factors ◽  
Oblimin Rotation ◽  
Principal Axis Factor Analysis ◽  
Direct Oblimin ◽  
Significant Factors ◽  
Death Depression

This study examined the dimensional structure of Tomás-Sábado and Gómez-Benito's Death Anxiety Inventory and Templer, et al.'s Death Depression Scale-Revised. The responses of 244 Spanish nurses to the Spanish forms of both scales were evaluated by means of a principal axis factor analysis with direct Oblimin rotation. Five significant factors were identified: Internally Generated Death Anxiety, Death Depression, Externally Generated Death Anxiety, Death Threat, and Death Sadness, accounting for 51.6% of the variance. The distribution of the factor loadings for the items of both scales on the five factors supported the discriminant validity of the constructs specific to each of the scales and justified their use in evaluating death anxiety and death depression independently.

scholarly journals Un método para determinar competencias distintivas en pequeñas y medianas empresas?

2011 ◽  
Vol 4 (2) ◽  
pp. 195-214
Author(s):  
Carlos Maria Fernandez Jardon ◽  
María Susana Martos
Keyword(s):  
Competitive Advantage ◽  
Principal Components ◽  
Core Competencies ◽  
External Factors ◽  
Firm Characteristics ◽  
Oblimin Rotation ◽  
Para Determinar ◽  
Internal And External Factors ◽  
Direct Oblimin

The sources of competitive advantage are firm characteristics that allow them to be in a better position than its competitors. Modern firm theories consider that these sources are internal and external factors of business. Entrepreneur combines these factors by the strategy to set their core competencies. This paper proposes a method for determining the formation of core competencies. We discuss the different techniques used and we propose an alternative based on principal components with direct oblimin rotation. We assess the implementation of this method to a particular case in SMEs.

Evidences of Validity of The Brazilian Scale of Learner's Attitude Towards Distance Education Programs

2018 ◽  
Vol 14 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Francisco Antonio Coelho Junior ◽  
Mariane Cortat ◽  
Clarissa Leite Flores ◽  
Flávio Augusto Mendes Santos ◽  
Gleidilson Costa Alves ◽  
...  
Keyword(s):  
Distance Education ◽  
Undergraduate Students ◽  
Attitude Scale ◽  
The Social ◽  
Negative Affects ◽  
Oblimin Rotation ◽  
Total Variability ◽  
Study Population ◽  
Brazilian Students ◽  
Total Point

Online learning is one of the fastest growing trends in educational uses of technology. In this study, an instrument to measure the social attitudes of the Brazilian students based on distance education was developed and validated. The study population consisted of public administration undergraduate students that has been providing by distance education by University of Brasília, in Brazil. The sample of the study consisted of 590 Brazilian students. The scale has 41 items, with total Cronbach alpha coefficient of .94, and reliability coefficient (KMO) of .94. The correlations of each item with total point were between .30 and .79. A factor analysis was run using direct oblimin rotation for construct validity, resulting in 4 factors structure explaining 47.12% of total variability. These factors are “Personnel and Dispositional Aspects”, “Procedural Characteristics”, “Negative Affects” and “Internalization and habituation of usage”. Consequently, findings show that The Brazilian Attitude Scale towards Distance Education (BrazilASTDE) is a valid and reliable instrument.

Transition From Hospital to Home in Parents of Preterm Infants: Revision, Modification, and Psychometric Testing of the Questionnaire

2018 ◽  
Vol 26 (2) ◽  
pp. 296-310 ◽  
Author(s):  
Marina Boykova
Keyword(s):  
Preterm Infants ◽  
Online Survey ◽  
Psychometric Testing ◽  
Field Testing ◽  
Reliability Estimates ◽  
Oblimin Rotation ◽  
Principal Axis Factoring ◽  
Hospital To Home ◽  
Correlated Factors ◽  
Prematurely Born Infants

Background and Purpose:Transition from hospital to home in parents of prematurely born infants can be challenging. This methodological study aimed to develop an instrument to measure transitional problems in parents after hospital discharge.Methods:Kenner’s Transition Questionnaire was modified based on findings of the literature review and a qualitative study. Content validity of the revised tool was determined by a panel of experts, and field testing was conducted via an online survey of parents of preterm infants (N = 704). Exploratory factor analysis (principal axis factoring and direct oblimin rotation) was performed.Results:Results showed four correlated factors in parental transition from hospital to home: Isolation, Worry, Confidence, and Professional Support (17 items total). Factor loadings ranged from .59 to .87, and reliability estimates ranged from .77 to .87.Conclusion:The revised instrument demonstrated adequate psychometric characteristics; further testingand validation of the instrument is warranted.

Psychometric Properties of the Chinese Version of the Evidence-Based Practice Questionnaire for Nurses

2019 ◽  
Vol 27 (3) ◽  
pp. E117-E131
Author(s):  
Rumei Yang ◽  
Jia-Wen Guo ◽  
Susan L. Beck ◽  
Fen Jiang ◽  
Siyuan Tang
Keyword(s):  
Psychometric Properties ◽  
Evidence Based Practice ◽  
Southern China ◽  
Evidence Based ◽  
Validity And Reliability ◽  
Knowledge And Skills ◽  
Oblimin Rotation ◽  
Tertiary Hospitals ◽  
Conceptual Equivalence ◽  
Translation Procedure

Background and PurposeThe Evidence-Based Practice Questionnaire (EBPQ-English) has been used in various populations. However, it has not been validated in the Chinese nursing population. This study aimed to translate EBPQ-English into Chinese and evaluate its psychometric properties.MethodsThe Brislin translation procedure was used to maintain the conceptual equivalence. The validity and reliability of EBPQ-Chinese were investigated using exploratory factor analysis and Cronbach's α with 810 nurses from nine tertiary hospitals in Southern China.ResultsPrinciple axis factoring and oblimin rotation yielded three factors with 22 items, including Knowledge and Skills (k = 14; α = 0.94), Attitudes (k = 3; α = 0.83), and Practice (k = 5; α = 0.86), which explained 57.03% of the total variance.ConclusionsEvidence supports the validity and reliability of a three-factor 22-item EBPQ-Chinese.

Non-voice-related throat symptoms: comparative analysis of laryngopharyngeal reflux and globus pharyngeus scales

2010 ◽  
Vol 125 (1) ◽  
pp. 59-64 ◽  
Author(s):  
R A Cathcart ◽  
N Steen ◽  
B G Natesh ◽  
K H Ali ◽  
J A Wilson
Keyword(s):  
Laryngopharyngeal Reflux ◽  
Principal Component ◽  
Symptom Assessment ◽  
Reflux Symptom ◽  
Reflux Symptom Index ◽  
Symptom Index ◽  
Similar Symptom ◽  
Postnasal Drip ◽  
Throat Symptom ◽  
Oblimin Rotation

AbstractBackground:This study calculated the comparability of two throat symptom assessment scales devised to evaluate either laryngopharyngeal reflux or globus.Setting:United Kingdom hospital out-patient departments.Method:A total of 334 subjects, with and without throat symptoms, completed the Reflux Symptom Index and/or the Glasgow and Edinburgh Throat Scale. The following were calculated for the resultant data: Cronbach's α coefficient, principal component analysis, Kaiser normalisation, varimax and oblimin rotation, and eigenvalues.Results:Analysis of data from the Reflux Symptom Index and the Glasgow and Edinburgh Throat Scale revealed clearly similar symptom domains regarding (1) coughing and blockage, and (2) globus or postnasal drip or throat-clearing, as did combined analysis of their amalgamated items. Both instruments had good overall internal consistency (α = 0.75 and 0.81, respectively). The ‘heartburn or reflux’ item in the Reflux Symptom Index mapped poorly to each underlying factor.Discussion:The most commonly used laryngopharyngeal reflux and globus assessment questionnaires appear to detect very similar symptom clusters. The management of throat disorders may previously have been over-reliant on the presenting pattern of throat symptoms. Our findings indicate a need to revisit the traditional clinical classification of throat symptoms.

scholarly journals Assessing the Structure of the Ways of Coping Questionnaire in Fibromyalgia Patients Using Common Factor Analytic Approaches

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Charles Van Liew ◽  
Maya S. Santoro ◽  
Larissa Edwards ◽  
Jeremy Kang ◽  
Terry A. Cronan
Keyword(s):  
Visual Analysis ◽  
Common Factor ◽  
Ways Of Coping ◽  
Ways Of Coping Questionnaire ◽  
Number Of Factors ◽  
Oblimin Rotation ◽  
The Stability ◽  
Context Specific ◽  
Study Participants ◽  
Variance Explained

The Ways of Coping Questionnaire (WCQ) is a widely used measure of coping processes. Despite its use in a variety of populations, there has been concern about the stability and structure of the WCQ across different populations. This study examines the factor structure of the WCQ in a large sample of individuals diagnosed with fibromyalgia. The participants were 501 adults (478 women) who were part of a larger intervention study. Participants completed the WCQ at their 6-month assessment. Foundational factoring approaches were performed on the data (i.e., maximum likelihood factoring [MLF], iterative principal factoring [IPF], principal axis factoring (PAF), and principal components factoring [PCF]) with oblique oblimin rotation. Various criteria were evaluated to determine the number of factors to be extracted, including Kaiser’s rule, Scree plot visual analysis, 5 and 10% unique variance explained, 70 and 80% communal variance explained, and Horn’s parallel analysis (PA). It was concluded that the 4-factor PAF solution was the preferable solution, based on PA extraction and the fact that this solution minimizes nonvocality and multivocality. The present study highlights the need for more research focused on defining the limits of the WCQ and the degree to which population-specific and context-specific subscale adjustments are needed.

Assessment of Student Teachers by College Supervisors

1987 ◽  
Vol 61 (1) ◽  
pp. 275-283 ◽  
Author(s):  
John R. Bing ◽  
Andrew L. Cherry
Keyword(s):  
Student Teachers ◽  
Communication Skills ◽  
Principal Components ◽  
Instructional Environment ◽  
Human Relationships ◽  
Factorial Method ◽  
Professional Responsibilities ◽  
Five Factors ◽  
Oblimin Rotation

This study examined a subset of 46 variables on a 52-item form for evaluating student teachers to determine the underlying dimensions tapped by the instrument. 482 evaluations completed by 33 college supervisors were analyzed using the principal components factorial method. Five factors with factorial loadings of at least .50 on the item variables were identified in 34 iterations using oblimin rotation. Five factors were interpreted as: I. Management of the Instructional Environment, II. Professional Responsibilities, III. Human Relationships, IV. Planning of Instruction, and V. Communication Skills.

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