Factor Analysis of Neuropsychological Tests

1969 ◽  
Vol 29 (3) ◽  
pp. 791-802 ◽  
Author(s):  
David Crockett ◽  
Harry Klonoff ◽  
James Bjerring
Keyword(s):  
Factor Analysis ◽  
Neuropsychological Functioning ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Motor Speed ◽  
Normal Children ◽  
Complex Skills ◽  
Checking Behavior ◽  
Two Factors ◽  
Psychometric Measures

The Halstead-Reitan Battery, 2 Benton tests and the WISC were administered to a sample of normal children, ages 5 to 8. The results of a principal-component factor analysis indicated that at least nine different areas were being measured. The areas of neuropsychological functioning were: Analytic-Synthetic Visual-motor Ability, Undirected Motor Speed, Verbal Abstract Ability, Resistance to Distraction, Ability to Alternate between Motor Sets, Directed Motor Speed, Environmental Awareness and Judgmental Skills, Sequencing Visual Stimuli, and Checking Behavior. Regression weights and composite score formulae for estimating Ss' scores in these 9 areas were presented. Dimensions were found which correspond to the Verbal-Performance division of the Wechsler test. Five of the factors were found to be relatively independent of psychometric measures of intelligence. Two factors involving higher-order complex skills were also found. The derived factors were related to other factor analytic studies.

Factor Analysis of a Neuropsychological Battery for Children Aged 9 to 15

1971 ◽  
Vol 32 (2) ◽  
pp. 603-616 ◽  
Author(s):  
Harry Klonoff
Keyword(s):  
Factor Analysis ◽  
Neuropsychological Functioning ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Motor Speed ◽  
Neuropsychological Battery ◽  
Normal Children ◽  
Performance Variables ◽  
Auditory Recognition ◽  
Psychometric Measures

A neuropsychological battery comprised of 29 Halstead-Reitan variables, 2 Benton variables, 1 Reitan-Kløve variable, 16 Kløve variables, and the 12 WISC variables was given to 200 normal children, ages 9 to 15. Results of a principal component factor analysis indicated that at least 19 different dimensions were being measured. The dimensions of neuropsychological functioning were: Directional Sequencing of Visual Stimuli, Verbal Fluency, Static Motor Steadiness, Directed Motor Steadiness, Tactile Discrimination Speed, Coordinated Motor Speed, Undirected Motor Speed, Manipulative Dexterity, Patterned Critical Discrimination, Form Reproduction Accuracy, Crossed-modality Consistency, Set for Provisional Solutions, Cue Resultant Shifting of Attention, Tactile Retention, Alternation Between Conceptual Realms, Directed Motor Speed, Analytic-synthetic Visual-motor Ability, Form Reproduction Speed and Auditory Recognition. Regression weights and composite score formulae for estimating S's scores on these 19 dimensions were presented. Dimensions corresponded to the verbal-performance division of the WISC. 14 factors were found to be relatively independent of psychometric measures of intelligence; 3 factors were interdependent with WISC performance variables; 1 factor was interdependent with a WISC verbal variable; 1 factor derived from WISC verbal variables. The derived factors were related to other factor analytic studies.

Use of the Perceived Physical Competence Scale with Adolescents with Disabilities

1995 ◽  
Vol 80 (2) ◽  
pp. 571-577 ◽  
Author(s):  
Taru Lintunen ◽  
Pilvikki Heikinaro-Johansson ◽  
Claudine Sherrill
Keyword(s):  
Gender Differences ◽  
Factor Analysis ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Validity And Reliability ◽  
Varimax Rotation ◽  
Physical Competence ◽  
Related Literature ◽  
Competence Scale ◽  
Two Factors

The construct validity and reliability of the 1987 Perceived Physical Competence Scale of Lintunen were examined to assess the applicability of the instrument for use with adolescents with disabilities. Subjects were 51 girls and 34 boys ( M age = 15.1 yr.) from several schools in central Finland. Principal component factor analysis with varimax rotation yielded the same two factors for adolescents with disabilities as reported for nondisabled adolescents in the related literature. Cronbach alphas for the two factors were .89 and .56. It was concluded that the scale is an appropriate measure for adolescents with disabilities. Statistical analysis indicated no gender differences for adolescents with disabilities. When compared with nondisabled groups in the related literature, these adolescents had perceived fitness similar to nondisabled peers but significantly lower than that of athletes without disabilities.

scholarly journals Cardiomyopathies: echocardiographic profiles based on principal component factor analysis in men and women

2020 ◽  
Vol 25 (11) ◽  
pp. 4108
Author(s):  
N. G. Vardugina ◽  
I. V. Medvedenko ◽  
N. M. Efimova
Keyword(s):  
Factor Analysis ◽  
Contractile Function ◽  
Strong Association ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Men And Women ◽  
Risk Of Death ◽  
Diagnosis And Prognosis ◽  
Two Factors ◽  
Icd 10

Aim. To determine echocardiographic profiles and their prognostic value using factor analysis in men and women with various types of cardiomyopathies (CMP).Material and methods. The study involved 100 people with CMP — 69 men with a median age of 53 years and 31 women with a median age of 58 years. Among the subjects, six nosological types corresponding to ICD 10 classification were revealed: dilated CMP (DCM), ischemic CMP (ICM), alcoholic CMP, mixed CMP, hypertrophic CMP (HCM) and myocarditis. All persons underwent an echocardiography. Echocardiography results as variables were included in factor analysis. The resulting two factors are presented as the first and second echocardiographic profiles.Results. The first echocardiographic profile was characterized as the degree of myocardial contractile function reduction. A strong association of the first profile with DCM, alcoholic CMP and myocarditis in men (p=0,001) and DCM in women (p=0,05) was obtained. In some individuals with ICM and mixed CMP, there was no association with the first profile. The second echocardiographic profile reflected the degree of myocardial mass increase and had significant differences only in women (p=0,04). A strong correlation with the second profile was observed in HCM, in the majority of women with ICM and in some persons with mixed CMP. Fatal outcomes in men were recorded in patients with ICM (66,7%), alcoholic CMP and myocarditis, and in women with mixed CMP (11,1%).Conclusion. For patients with DCM, myocarditis, and alcoholic CMP, the first echocardiographic profile with a risk of death is characteristic. The second echocardiographic profile was inherent in HCM and was associated with a protective effect in women with ICM. The revealed echocardiographic profiles can be extrapolated to nosological types of CMP in men and women in order to verify the diagnosis and prognosis.

Development of a Satisfaction with Therapy and Therapist Scale

1999 ◽  
Vol 33 (5) ◽  
pp. 748-753 ◽  
Author(s):  
Tian P. S. Oei ◽  
Greg J. Shuttlewood
Keyword(s):  
Factor Analysis ◽  
Major Depression ◽  
Cognitive Therapy ◽  
Principal Component ◽  
Specific Factor ◽  
Principal Component Factor Analysis ◽  
Varimax Rotation ◽  
Two Factors ◽  
Specific Factors ◽  
Fourth Session

Objective: While much work has gone into developing measures of specific factors in psychotherapy for depression, measures for non-specific factors have been lacking. This paper aims to develop a scale for a non-specific factor called ‘Satisfaction with Therapy and Therapist Scale’. Method: Sixty-seven patients with major depression completed the questionnaires during the fourth session of cognitive therapy. The patients went through an assessment clinical interview using a SCID. They also completed the ATQ, BDI and DAS questionnaires during the fourth session. Results: Principal component factor analysis with varimax rotation showed that the scale possesses two factors, ‘Satisfaction with Therapy’ and ‘Client Evaluation of Therapist’, accounting for 64.7% of the total variance. The alpha Cronbach for the two factors is 0.91 and 0.80 with the total scale alpha at 0.90. The scale also possesses good concurrent and disciminant validity. Conclusion: The Satisfaction with Therapy and Therapist Scale is an adequate measure for measuring a non-specific factor in psychotherapy.

Analysis of the Quality of Relationships in the Footwear Sector

2020 ◽  
pp. 97-121
Author(s):  
Marcela Karina Benítez Gaibor ◽  
Juan Pablo Martínez Mesías
Keyword(s):  
Factor Analysis ◽  
Relationship Quality ◽  
Principal Component ◽  
Three Dimensions ◽  
Principal Component Factor Analysis ◽  
Pca Analysis ◽  
Two Factors ◽  
Quality Of Relationships ◽  
The Relationship

The objective of the study is to propose a methodology and measures for the assessment of relationship quality between producers and clients and between producers and suppliers of the footwear sector. For this purpose, a principal component factor analysis (PCA) has been applied on a sample of footwear producers of Tungurahua, Ecuador. The PCA analysis included the seven dimensions of relational coordination theory and other three dimensions, such as trust, cooperation, and satisfaction. Results show that the quality of relationships is composed by two factors, one related to communication and one related to relationships. Some changes occur in these dimensions depending on the stakeholders involved in the relationship. The scores of the components resulted from the PCA analysis were used to calculate communication and relationship indexes. Additionally, a correlation analysis has been performed showing a positive correlation between communication and relationships dimensions in both producers-clients relationship and producers-suppliers relationship.

Developing the Organisational Justice Scale and Examining Teachers' and School Administrators' Views about Organisational Justice in Primary Schools

2021 ◽  
pp. 33-50
Author(s):  
Hasan Basri Memduhoðlu ◽  
Ali Ýhsan Yildiz
Keyword(s):  
Factor Analysis ◽  
Primary Schools ◽  
School Administrators ◽  
Data Gathering ◽  
Principal Component ◽  
Measurement Tool ◽  
Principal Component Factor Analysis ◽  
Reliable Measurement ◽  
Organisational Justice ◽  
Confirmatory Factor

The purpose of this study is to develop a reliable and valid measurement tool to explore views about organisational justice in schools and to examine teachers' and school administrators' views about organisational justice in primary schools. The sample of the study consisted of a total of 455 participants, 176 school administrators and 279 teachers from the primary schools in the Centre of Van. The Organisational Justice Scale, developed by the authors, was employed as data gathering tool. Principal Component Factor Analysis was used to determine the content and construct validities of the scale and Confirmatory Factor Analysis was employed to evaluate the obtained results. As a result of the study, the developed Organisational Justice Scale (OJS) was found to be a valid and reliable measurement tool for school applications.

Neuropsychological asymmetry in Alzheimer's disease: Verbal versus visuoconstructional deficits across stages of dementia

1997 ◽  
Vol 3 (5) ◽  
pp. 420-427 ◽  
Author(s):  
DANIEL STRITE ◽  
PAUL J. MASSMAN ◽  
NORMA COOKE ◽  
RACHELLE S. DOODY
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Factor Analysis ◽  
Principal Component ◽  
Neuropsychological Deficits ◽  
Principal Component Factor Analysis ◽  
Factor Scores ◽  
Lateral Asymmetry ◽  
Mild Dementia ◽  
Component Factor

The incidence of clinically apparent asymmetric profiles of neuropsychological deficits in Alzheimer's disease (AD) patients similar to those reported in the PET literature is currently unclear. This study investigated lateral neuropsychological asymmetry using principal component factor analysis in a sample of 153 patients diagnosed with probable AD. Using factor scores, patients were classified into groups exhibiting asymmetric or symmetric profiles of neuropsychological deficits. In the analysis of lateral asymmetry, 27.5% of patients were classified as asymmetric (10% verbally and 17% visuospatially). Consistent with reports of continued asymmetry beyond the mild dementia stage, asymmetry was exhibited in the mild, moderate, and severely demented groups. These findings of neuropsychological asymmetry across stages of dementia are consistent with the picture of significant neuropsychological heterogeneity in AD that has been emerging in the decade. (JINS, 1997, 3, 420–427.)

Grandparents' Reactions to the Death of a Grandchild: An Exploratory Factor Analytic Study

1997 ◽  
Vol 35 (1) ◽  
pp. 119-140 ◽  
Author(s):  
P. S. Fry
Keyword(s):  
Factor Analysis ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Survivor Guilt ◽  
Recovery Processes ◽  
Factor Analytic Study ◽  
Personal Accounts ◽  
Grief Reactions ◽  
Depth Interviews

One hundred and fifty-two grandparents who had experienced the death of a grandchild in the preceding three years or so served as subjects for two separate but related studies investigating the multidimensional nature of the grief reactions of grandparents. In Study 1, subjects responded to an open-ended questionnaire which asked for brief descriptions of their grief reactions immediately following the death of the grandchild, and perceived changes in their affective and behavioral responses with the passage of time. A principal component factor analysis procedure was used to identify the major dimensions in the grief reactions of grandparents. Of the six factors that emerged, Factor 1 (Emotional Rupturing) and Factor 2 (Survivor Guilt) accounted for 21.0 percent and 18.6 percent, respectively, of the total variance. In Study 2, a six-month longitudinal follow-up of seventeen grandparents was conducted by means of in-depth interviews. Subjects provided detailed personal accounts of their coping and recovery processes. Interview data were analyzed using a qualitative approach. The results of Study 2 corroborated and supported the factor analysis results obtained in Study 1. Both studies highlight the continuing need for gerontologists to investigate the complexity of grandparents' grief reactions. The studies draw attention to the mental health implications for older adults who have experienced loss and bereavement.

Development and Testing of the Collaboration in the Clinical Learning Environment Tool

2017 ◽  
Vol 25 (2) ◽  
pp. 353-369
Author(s):  
Katie Hooven
Keyword(s):  
Factor Analysis ◽  
Nursing Education ◽  
Learning Environment ◽  
Principal Component ◽  
Principal Component Factor Analysis ◽  
Tool Development ◽  
Clinical Learning ◽  
Clinical Learning Environment ◽  
Education Practice ◽  
Expert Review

Background and Purpose: This study was done to develop and psychometrically test the Collaboration in the Clinical Learning Environment (CCLE) tool. The researcher acknowledged 2 distinct populations that required input into this particular tool development: staff nurses and nursing faculty members. Both have influence into student learning. Methods: Research followed the 8-step methodology for tool development as defined by DeVellis. Results: Reliability testing was done on the 24-item CCLE, which confirmed a Cronbach’s alpha of .96. Exploratory factor analysis with principal component factor analysis was done to examine the structure of the instrument. Validity was supported through the content expert review, along with concurrent validity. Conclusions: Although collaboration has been emphasized for many years in the clinical learning environment, the construct has never been successfully operationalized. Implications for nursing education, practice, and theory are discussed.

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