scholarly journals Identification of correlation structure using rotated factor loadings

2017 ◽  
Vol 5 (1) ◽  
pp. 8
Author(s):  
Iberedem Iwok ◽  
Nwikpe B. J
Keyword(s):  
Factor Model ◽  
Algebraic Approach ◽  
Correlation Structure ◽  
Orthogonal Rotation ◽  
Factor Loadings ◽  
Method Of Principal Components ◽  
Two Factors ◽  
Kaiser Criterion ◽  
The Given ◽  
Unobservable Factors

This work seeks to identify the correlation structure of variables in terms of few underlying but unobservable factors. The method was applied to age and five different tests results obtained from 200 patients in a hospital. Two factors were identified using the scree plot and the Kaiser criterion. The factor loadings obtained by the method of principal components gave an inadequate fit to the data. An algebraic approach was applied using orthogonal rotation, and the loadings were found to give a clear and interpretable pattern. Consequently, the variables: age, fasting blood sugar and diastolic blood pressure were found to cluster about the first factor F1 called Age-Cardiovascular factor. Similarly, the remaining variables malaria, typhoid and haemoglobin clustered about the second factor F2 and the given name was Hemo-typhomalaria factor. Diagnostic checks were carried out and the factor model generated by the rotated loadings was found to be adequate.

Factor Structure of the Hellenic WISC-III for Children with Learning Disabilities

2018 ◽  
Vol 9 (03) ◽  
pp. 20445-20451
Author(s):  
Adam A ◽  
Kiosseoglou G ◽  
Abatzoglou G ◽  
Papaligoura Z.
Keyword(s):  
Learning Disabilities ◽  
Factor Structure ◽  
Factor Model ◽  
The Other ◽  
Clinical Value ◽  
Reasoning Abilities ◽  
Picture Arrangement ◽  
Factorial Model ◽  
Verbal Subtest ◽  
Two Factors

The present research aims to examine the factor structure of the Hellenic WISC-III in a sample of 50 children with learning disabilities. The results show the existence of a factorial model with two factors, one aggregating the Comprehension verbal subtest with four performance subtests and the other the Picture Arrangement performance subtest with four verbal subtests. This two-factor model includes loadings in two factors that relate to the sequencing abilities and the verbal reasoning abilities of children. These findings assert the clinical value of the intelligence evaluation in these children.

scholarly journals Psychometric Evaluation of the Perceived Stress Scale in Multiple Sclerosis

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Salene M. Wu ◽  
Dagmar Amtmann
Keyword(s):  
Multiple Sclerosis ◽  
Perceived Stress ◽  
Factor Model ◽  
Reliability And Validity ◽  
Psychometric Evaluation ◽  
General Factor ◽  
Perceived Stress Scale ◽  
Stress Scale ◽  
Two Factors ◽  
Mental And Physical Health

Multiple sclerosis (MS) is a progressive disease characterized by neurological symptoms and sometimes heightened levels of distress. The Perceived Stress Scale (PSS) is often used in MS samples to measure stress but has not been validated in this population. Participants (n=446) completed the PSS as well as measure of depression, anxiety, and mental and physical health. Factor analyses indicated that the general factor of a bifactor model accounted for a large amount of the variance in the 14-item and 10-item versions of the PSS. The 4-item PSS had two factors, the Stress subscale and the Coping subscale, but a one-factor model also fits the data well. Total scores and both subscales had sufficient reliability and validity for all versions of the PSS, although a few items of the 14-item PSS had low item-total correlations. This study supports the use of the total score of the PSS in MS but also suggests that the 10-item PSS had better psychometric properties than the 14-item PSS.

scholarly journals Validation of an Adapted Version of the Statistical Anxiety Scale in English and Its Relationship to Attitudes Toward Statistics

SAGE Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 215824402110013
Author(s):  
Monique O’Bryant ◽  
Prathiba Natesan Batley ◽  
Anthony J. Onwuegbuzie
Keyword(s):  
Root Mean Square ◽  
Discriminant Validity ◽  
Factor Model ◽  
The United States ◽  
Anxiety Scale ◽  
Mean Square ◽  
Statistics Anxiety ◽  
Root Mean Square Residual ◽  
Two Factors ◽  
Attitudes Toward Statistics

The aims of this study were to validate an instrument that measured statistics anxiety and to examine how attitudes toward statistics predict statistics anxiety using the Attitudes Toward Statistics (ATS) Scale for a sample of 323 undergraduate social science majors enrolled in colleges and universities in the United States. A confirmatory factor analysis suggested retaining a revised two-factor model of the Statistical Anxiety Scale (SAS) to measure statistics anxiety, namely, help and interpretation anxiety ([Formula: see text] = 49.37, df = 38.13, p = .105, comparative fit index [CFI] = .959, standardized root mean square residual [SRMR] = .035, root mean square error of approximation [RMSEA] = .076). An examination of discriminant validity of the scores of the SAS with scores of the ATS subscales revealed that statistics anxiety and attitudes toward statistics are distinct constructs. Structural equational modeling was used to determine whether attitude toward course and attitude toward field were predictors of examination anxiety and asking for help anxiety. Of the two factors of the ATS scale, attitudes toward field and attitudes toward course, the latter predicted examination anxiety better than the former did, although both were moderate predictors of examination anxiety. We recommend that statistics educators consider the role of statistics anxiety as well as attitudes toward statistics and the field when designing their pedagogical approach.

The Assessment of Time Attitudes Among Adolescents and Young Adults With the Polish Adolescent and Adult Time Inventory – Time Attitude Scale (AATI-TA-Polish)

2021 ◽  
Author(s):  
Aneta Przepiórka ◽  
Agata Błachnio ◽  
Tomasz Jankowski ◽  
Zena R. Mello ◽  
Frank C. Worrell
Keyword(s):  
Young Adults ◽  
Convergent Validity ◽  
Satisfaction With Life ◽  
Factor Model ◽  
Attitude Scale ◽  
Adolescents And Young Adults ◽  
Confirmatory Factor Analyses ◽  
Reliability Estimates ◽  
Two Factors ◽  
Adolescents And Adults

Abstract. In this paper, we examined the dimensionality, reliability, structural validity, and convergent validity of scores on the Adolescent and Adult Time Inventory – Time Attitude Scale (AATI-TA) in a sample of 989 Polish adolescents and young adults. Two studies were conducted. In Study 1, confirmatory factor analyses supported both the original 6-factor model (Past Positive, Past Negative, Positive Present, Negative Present, Future Positive, and Future Negative) and an alternative time-valence model with two factors related to valence (Positivity and Negativity) and three temporal factors (Past, Present, and Future). Study 1 results also provided evidence of invariance between adolescents and adults up to latent means. AATI-TA scores were also found to be invariant by gender and national context with scores from American adolescents. AATI-TA scores also yielded satisfactory reliability estimates. In Study 2, the incremental validity of AATI-TA scores over the contributions of ZTPI scores was assessed for and demonstrated with satisfaction with life and self-esteem. Overall, the results suggest that the Polish version of the AATI-TA yields psychometrically sound scores in Polish adolescents and adults.

Torque Rheological Properties of Bamboo Flour/PP Composites

2011 ◽  
Vol 391-392 ◽  
pp. 138-142
Author(s):  
Wen Bin Yang ◽  
Ming Xin Zhang ◽  
En Hui Chen
Keyword(s):  
Rheological Behavior ◽  
Flow Behavior ◽  
Orthogonal Test ◽  
Weight Percentage ◽  
Two Factors ◽  
Pp Composites ◽  
Bamboo Flour ◽  
Reinforced Thermoplastics ◽  
The Given ◽  
Made In

The rheological behavior of plant flour reinforced thermoplastics composites is very important to practical industry, however few research especially research about bamboo flour reinforced polypropylene(PP) composites is available regarding rheological field. In this paper, the torque rheometer made in Shanghai was used to examine the flow behavior of bamboo flour filled PP composites. The orthogonal test was adopted to analyze how three factors(weight percentage of bamboo, weight percentage of MAPP and rotate speed) influence the behavior of composites. The result indicated that bamboo flour filled PP composites was pseudo-plastics or shear-thinning flow under the experimental condition investigated. The effect of weight percentage of bamboo on rheological peoperties was signigficant,but the effect of both of the rest of two factors on rheological was not significant under the given experimental condition.

Two Factors are Quite Enough: A Response to Molloy (1984)

1985 ◽  
Vol 2 (1) ◽  
pp. 2-5 ◽  
Author(s):  
Jay S. Birnbrauer
Keyword(s):  
Behaviour Change ◽  
Factor Model ◽  
Human Behaviour ◽  
External Variables ◽  
Two Factors ◽  
Common Misconceptions

External variables and measurable aspects of human behaviour, biology, mind, emotions, and whatever else one cares to name are all that psychologists and other professionals concerned with behaviour change have to respond to and manipulate. A two factor model thus is proposed to maintain attention and action on goals and methods. In the course of arguing this position, some common misconceptions of the operant model are corrected.

Assessing Cognitive and Affective Empathy Through the Interpersonal Reactivity Index

Assessment ◽  
2016 ◽  
Vol 23 (6) ◽  
pp. 769-777 ◽  
Author(s):  
Evangelia G. Chrysikou ◽  
W. Jake Thompson
Keyword(s):  
Factor Structure ◽  
Factor Model ◽  
Model Fit ◽  
Reactivity Index ◽  
Complex Nature ◽  
Affective Empathy ◽  
Interpersonal Reactivity Index ◽  
Confirmatory Factor ◽  
Two Factors ◽  
First Time

One aspect of higher order social cognition is empathy, a psychological construct comprising a cognitive (recognizing emotions) and an affective (responding to emotions) component. The complex nature of empathy complicates the accurate measurement of these components. The most widely used measure of empathy is the Interpersonal Reactivity Index (IRI). However, the factor structure of the IRI as it is predominantly used in the psychological literature differs from Davis’s original four-factor model in that it arbitrarily combines the subscales to form two factors: cognitive and affective empathy. This two-factor model of the IRI, although popular, has yet to be examined for psychometric support. In the current study, we examine, for the first time, the validity of this alternative model. A confirmatory factor analysis showed poor model fit for this two-factor structure. Additional analyses offered support for the original four-factor model, as well as a hierarchical model for the scale. In line with previous findings, females scored higher on the IRI than males. Our findings indicate that the IRI, as it is currently used in the literature, does not accurately measure cognitive and affective empathy and highlight the advantages of using the original four-factor structure of the scale for empathy assessments.

Brief Bipolar Markers for the Five Factor Model of Personality

1999 ◽  
Vol 84 (3_suppl) ◽  
pp. 1173-1179 ◽  
Author(s):  
Alan B. Shafer
Keyword(s):  
Internal Consistency ◽  
Rating Scale ◽  
Factor Model ◽  
Five Factor Model ◽  
Factor V ◽  
Factor Analyses ◽  
Initial Development ◽  
Total N ◽  
Factor Loadings

The initial development of a brief 30-item bipolar rating scale designed to measure the Five Factor Model of personality is presented. This scale assesses Factor V as a variant of Openness rather than Intellect. Factor analyses across five samples (Total N = 898) indicated that the trait-term pairs used to construct the scales exhibited relatively high univocal factor loadings ( M = .62, SD=.13) and acceptable values of internal consistency ( M α=.79, SD= 07)

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