Multi‐set factor analysis by means of Parafac2

We consider multi‐set data consisting of observations, k = 1,…, K (e.g., subject scores), on J variables in K different samples. We introduce a factor model for the J × J covariance matrices , k = 1,…, K, where the common part is modelled by Parafac2 and the unique variances , k = 1,…, K, are diagonal. The Parafac2 model implies a common loadings matrix that is rescaled for each k, and a common factor correlation matrix. We estimate the unique variances by minimum rank factor analysis on for each k. The factors can be chosen orthogonal or oblique. We present a novel algorithm to estimate the Parafac2 part and demonstrate its performance in a simulation study. Also, we fit our model to a data set in the literature. Our model is easy to estimate and interpret. The unique variances, the factor correlation matrix and the communalities are guaranteed to be proper, and a percentage of explained common variance can be computed for each k. Also, the Parafac2 part is rotationally unique under mild conditions.     

Explicit candecomp/parafac solutions for a contrived 2 × 2 × 2 array of rank three

Kruskal, Harshman and Lundy have contrived a special 2 × 2 × 2 array to examine formal properties of degenerate Candecomp/Parafac solutions. It is shown that for this array the Candecomp/Parafac loss has an infimum of 1. In addition, the array will be used to challenge the tradition of fitting Indscal and related models by means of the Candecomp/Parafac process.     

The Adaptation and Validation of Quality of Work Life Scale to Turkish Culture

The aim of this research is to adapt the Quality of Work Life Scale developed by Sirgy et al. (Social Indicators Research, 55, 241–302, 2001) to Turkish culture, and to examine its psychometric properties. The research has been conducted on 254 academics who are affiliated to the Faculty of Education and Faculty of Science and Letters of four different universities in Ankara, Turkey. In order to provide the lingual equivalence, bilingual group pattern was used, and an English version of the scale was applied to a group of 34 academicians who are fluent in both English and Turkish. Nearly 1 month after this application, the Turkish version of the same form was applied once again to the same 34 people. The construct validity of the scale was conducted by using the Confirmatory Factor Analysis method. As a result of the study, it was determined that the original scale and its Turkish form yielded similar results. The fact that internal consistency is high is proved. Croanbach alpha coefficient was found as 0.84. This result indicates that the internal consistency of the test and accordingly the reliability are high and close to the original QWL scale. As a result of the Confirmatory Factor Analysis applied, it was determined that the Turkish form gave a factorial structure which was similar to the original scale and that no problems occurred in the course of using the scale total points. It is concluded that this scale, with its extremely comprehensible language, will contribute to defining the level of quality of the work life of those who work in Turkey and understand their behaviors and attitudes towards their work.     

Parenting Adolescents: Examining the Factor Structure of the Alabama Parenting Questionnaire for Adolescents

The Alabama Parenting Questionnaire (APQ) is a well studied assessment of parenting practices for school-age children, especially in relation to child externalizing behaviors. Given the developmental changes between school-age children and adolescents and subsequent changes to parenting approaches during that time, the utility of a public-accessed measure to span across a broad age range is of high clinical and empirical importance. This study investigated the psychometric properties of the APQ in a community sample of 376 parents of adolescents. In an Exploratory Factor Analysis the data suggested a 4-factor solution similar in composition to the original 5-factor model. Proposed factors for the APQ when given to parents of adolescents included Positive and Involved Parenting, Parental Monitoring, Discipline Practices, and Discipline Process.     

Examining the Internal Consistency Reliability and Construct Validity of the Authentic Happiness Inventory (AHI) among Iranian EFL Learners

Unlike other measures of happiness that have tended to capture current levels of happiness, the Authentic Happiness Inventory (AHI) (Peterson, 2005; Seligman et al. in The American Psychologist 60:410–421, 2005) assesses changes in happiness based on the creation of positive emotions (the pleasant life), engagement in activities that facilitate the utilization of one’s strengths (the engaged life), and serving a more worthwhile purpose than merely the self’s pleasures (the meaningful life). Nonetheless, there is little published data regarding the construct validation of the AHI. The present study, which is part of a larger research project in assessing the effectiveness of integrating happiness intervention programs in the foreign language teaching curriculum at private English institutes and universities in Iran, attempts an examination of the psychometric quality and the construct validation of the Persian version of AHI (hereafter AHI-PV) using data collected from 234 Iranian learners of English as a Foreign Language (EFL), mainly through employing the Exploratory Factor Analysis (EFA). The AHI was translated into Persian to ensure item comprehension by the Iranian participants. The results show that the AHI-PV enjoys a high internal consistency (alpha?=?.93). Further, having determined a ‘marvelous’ factorability of the present sample through the Kaiser-Meyer-Olkin (KMO) test of Sampling Adequacy (.94) and Bartlett’s Test of Sphericity (p?Principal Component Analysis (PCA) and the Scree test indicated that, in contrast to earlier findings, a four-factor solution provides a more parsimonious grouping of the items in the inventory. Having analyzed the items on the scale, we labeled the four factors as ‘Meaningful and Purposeful Life’, ‘Pleasures and Positive Emotions’, ‘Engagement in Life Activities’, and ‘Interpersonal Connectedness’, hence the alignment of these new factors to Seligman’s (2002) conceptualization of authentic happiness.     

A Cross-Sectional and Longitudinal Investigation of the External Correlates of Sluggish Cognitive Tempo and ADHD-Inattention Symptoms Dimensions

The objective was to determine if the external correlates of sluggish cognitive tempo (SCT) and ADHD-inattention (IN) dimensions were the same in cross-sectional and longitudinal analyses. Teachers and aides rated SCT, ADHD-IN, ADHD-hyperactivity/impulsivity (HI), oppositional defiant disorder (ODD), and depression along with academic impairment in 758 Spanish children (55 % boys) on three occasions (twice at the end of the first grade year [6-week separation] and then again 12-months later at the end of the second grade year). Three of eight SCT symptoms showed substantial loadings on the SCT factor and substantially higher loadings on the SCT factor than the ADHD-IN factor for teachers and aides at each assessment (seems drowsy, thinking is slow, and slow moving). Cross-sectional and longitudinal analyses yielded similar results with SCT and ADHD-IN factors having different and unique external correlates (higher scores on SCT predicted lower scores on ADHD-HI and ODD while higher scores on ADHD-IN predicted higher scores on ADHD-HI and ODD with SCT and ADHD-IN both uniquely predicting academic impairment and depression). Developmental and methodological reasons are discussed for the failure to find an inconsistent alertness SCT factor (daydreams, alertness fluctuates, absent-minded, loses train of though, and confused).     

Rethinking Medical Humanities

This paper questions different conceptions of Medical Humanities in order to provide a clearer understanding of what they are and why they matter. Building upon former attempts, we defend a conception of Medical Humanities as a humanistic problem-based approach to medicine aiming at influencing its nature and practice. In particular, we discuss three main conceptual issues regarding the overall nature of this discipline: (i) a problem-driven approach to Medical Humanities; (ii) the need for an integration of Medical Humanities into medicine; (iii) the methodological requirements that could render Medical Humanities an effective framework for medical decision-making.     

Sufficient conditions for uniqueness in Candecomp/Parafac and Indscal with random component matrices

A key feature of the analysis of three-way arrays by Candecomp/Parafac is the essential uniqueness of the trilinear decomposition. We examine the uniqueness of the Candecomp/Parafac and Indscal decompositions. In the latter, the array to be decomposed has symmetric slices. We consider the case where two component matrices are randomly sampled from a continuous distribution, and the third component matrix has full column rank. In this context, we obtain almost sure sufficient uniqueness conditions for the Candecomp/Parafac and Indscal models separately, involving only the order of the three-way array and the number of components in the decomposition. Both uniqueness conditions are closer to necessity than the classical uniqueness condition by Kruskal. Part of this research was supported by (1) the Flemish Government: (a) Research Council K.U. Leuven: GOA-MEFISTO-666, GOA-Ambiorics, (b) F.W.O. project G.0240.99, (c) F.W.O. Research Communities ICCoS and ANMMM, (d) Tournesol project T2004.13; and (2) the Belgian Federal Science Policy Office: IUAP P5/22. Lieven De Lathauwer holds a permanent research position with the French Centre National de la Recherche Scientifique (C.N.R.S.). He also holds an honorary research position with the K.U. Leuven, Leuven, Belgium.     

Autonomic learning

Academic achievement was resolved into its intellectual and motivational components. IQ, personality variables, and parameters of operant and classical conditioning of autonomic nervous system controlled variables were examined in 99 black inner-city high school seniors. Six physiological variables(respiration, heart rate, finger plethysmogram, frontalis muscle potential, palmar skin conductance, and palmar skin potential) were analyzed by computer using analog-to-digital conversion and a Points of Interest (PI) program. Psychological measures were full WAIS IQ, Edwards Personality Inventory(EPI), Cattell Sixteen Personality Factor Questionnaire(16PF), McClelland need Achievement test(n Ach), Object Sorting test, Minnesota Counseling Inventory(MCI), Level of Aspiration Board, and Rotter—Miller Locus of Control. Achievement(Ach) was defined as the residuals of total grade point average(GPA) regressed on IQ. Each of 19 variables which discriminated significantly between high and low achievers was employed in step-wise regression analyses for GPA and Ach separately. In a regression analysis of variance of GPA, IQ=20.44%, EPI=9.08%, and physiological measures =21.37%(operant conditioning =18.70%; classical conditioning =2.67%). Combined measures of motivation(psychological and physiological) =30.45% of the variance in GPA. The entire psychological and physiological test battery, including IQ, contributed a total of 50.89% of the variance in GPA. In a regression analysis of variance in achievement, psychological measures, other than IQ(six EPI and one 16PF), =11.0% and physiological measures =30.3%. As a replication, this study demonstrated significant correlation between autonomic conditioning and school achievement.     

Maternal Relationship Insecurity and Depressive Symptoms as Moderators of Home Visiting Impacts on Child Outcomes

The purpose of this study was to determine the extent to which maternal relationship insecurity and severe depressive symptoms moderate home visiting impacts on developmental and behavioral outcomes in 2-year old children. In an experimental trial of the Healthy Families Alaska home visiting program, families (N = 249) were randomly assigned to home visiting (n = 126) or community services as usual (n = 123). Maternal severe depressive symptoms (CES-D ≥ 24) and relationship insecurity were measured using the Center for Epidemiologic Studies Depression Scale and the Attachment Style Questionnaire at baseline. Child cognitive and psychomotor development and behavior problems were measured with the Bayley Scales of Infant Development and the Child Behavior Checklist at follow-up. The results revealed that home visiting significantly impacted three outcomes—child cognitive development, internalizing behavior, and externalizing behavior. Home visiting impacts were limited to subgroups defined by maternal depressive symptoms and relationship insecurity. Home visiting improved cognitive development (B = 6.02, p < .03), and decreased internalizing behavior (B = ?3.83, p = .02) and externalizing behavior problems (B = ?3.74, p = .03) in children of mothers with either severe depressive symptoms or high levels of discomfort with trust at baseline, but not both. Family engagement in home visiting seems to play a role in mediating these moderating effects. These findings reflect the importance of screening for maternal relationship insecurity and depressive symptoms to distinguish family subgroups likely to benefit from home visiting from those for whom an enhanced service model might be needed.     

The Relation of Self-Supporting Personality,Big Five Personality and Depression

Self-supporting personality (SSP) is an indigenous Chinese personality concept. It is assumed to be a protective personality factor with regard to depression. In the present study, self-supporting personality traits are assumed to be similar to Big Five personality traits or facets of the Five Factor Model to a considerable degree, but also to contain some tendencies or dispositions which are related to depression in ways that go beyond either the Big Five factors or their sub-factors. The relation of self-supporting personality, Big Five personality, and depression was examined in a sample of 439 Chinese undergraduate students using the Self-Supporting Personality Scale for Adolescent Students (SSPS-AS), the Mandarin Chinese version of Revised NEO Personality Inventory (NEO-PI-R), and the Chinese Version of Self-Rating Depression Scale (SDS). Results from the correlation analysis revealed that most SSP traits were significantly correlated with the Big Five personality dimensions and sub-dimensions, but the correlation between personal flexibility and either the Big Five dimensions or their sub-dimensions were modest at best. Results from the hierarchical linear regression analyses showed that interpersonal responsibility, interpersonal openness, and personal independence negatively predicted depression, even after controlling for demographic variables and the Big Five personality, however, the explained variance decreased sharply. These results support the hypothesis that despite some overlap with the Big Five personality, self-supporting personality is related to depression in additional ways that the Big Five personality dimensions or their sub-dimensions are not.     

Convergence properties of an iterative procedure of ipsatizing and standardizing a data matrix,with applications to parafac/candecomp preprocessing

Centering a matrix row-wise and rescaling it column-wise to a unit sum of squares requires an iterative procedure. It is shown that this procedure converges to a stable solution. This solution need not be centered row-wise if the limiting point of the interations is a matrix of rank one. The results of the present paper bear directly on several types of preprocessing methods in Parafac/Candecomp.     

Commentary on Wolford,Taylor, and Beck: The conjunction fallacy?

AlthoughP(A&B|X) can never exceedP(A|X) (the conjunction rule), it is possible forP(X|A&B) to exceedP(X|A). Hence, people who rankA&B as more probable thanA are not necessarily violating any normative rule if the ranking is done in terms of the probability of these events to yield an eventX. Wolford, Taylor, and Beck (1990) have argued that this indeed is what happens in some problems (e.g. Tversky& Kahneman’s [1983] Linda problem). The claim made here is that the Linda problem is hard to reconcile with this interpretation; that there is little if any evidence that subjects utilize this interpretation; and that in any case, representativeness can account for all Linda problem results.     

Combining Item Response Theory and Diagnostic Classification Models: A Psychometric Model for Scaling Ability and Diagnosing Misconceptions

Traditional testing procedures typically utilize unidimensional item response theory (IRT) models to provide a single, continuous estimate of a student’s overall ability. Advances in psychometrics have focused on measuring multiple dimensions of ability to provide more detailed feedback for students, teachers, and other stakeholders. Diagnostic classification models (DCMs) provide multidimensional feedback by using categorical latent variables that represent distinct skills underlying a test that students may or may not have mastered. The Scaling Individuals and Classifying Misconceptions (SICM) model is presented as a combination of a unidimensional IRT model and a DCM where the categorical latent variables represent misconceptions instead of skills. In addition to an estimate of ability along a latent continuum, the SICM model provides multidimensional, diagnostic feedback in the form of statistical estimates of probabilities that students have certain misconceptions. Through an empirical data analysis, we show how this additional feedback can be used by stakeholders to tailor instruction for students’ needs. We also provide results from a simulation study that demonstrate that the SICM MCMC estimation algorithm yields reasonably accurate estimates under large-scale testing conditions.     

Poor communication in psycholinguistics: Review of four new textbooks

Four new textbooks on psycholinguistics are reviewed:Psycholinguistics: A Cognitive View of Language by H. S. Cairns and C. E. Cairns;Experimental Psycholinguistics by S. Glucksberg and J. H. Danks;Psycholinguistics: Introductory Perspectives by J. F. Kess, andIntroduction to Psycholinguistics by I. Taylor. Three general issues about psycholinguistics are considered in detail: (1) Psycholinguists should attempt to provide psychological tests of competing linguistic theories. (2) More attention should be given by psycholinguists to the work done in the field of human information processing. (3) There is evidence for the Whorfian hypothesis, even in its strong version, at the phonetic level of language. It is concluded that improvement is needed in the communication between psycholinguistics and related disciplines and among the subdivisions of psycholinguistics.     

Emotional Impulsivity in Children with ADHD Associated with Comorbid—Not ADHD—Symptomatology

Children with ADHD often demonstrate sudden and intense shifts in both positive and negative affect. This study examined the role of diagnostic status on emotional impulsivity in children utilizing ecological momentary assessment (EMA). Parents of 64 8–12 year old children (15 ADHD-only; 27 ADHD-comorbid; 22 control) completed a diagnostic structured interview and then an EMA protocol, rating the child’s affect thrice daily for 28 days. Analysis of covariance (ANCOVA) suggested that children with ADHD and a comorbid disorder demonstrated significantly more EMA-derived emotional impulsivity than children with ADHD only and control children. No difference was found between children with ADHD only and control children. This study suggested that children with ADHD demonstrate significantly higher levels of emotional impulsivity than control children only in the presence of a comorbid disorder.     

Sensitivity of Fit Indices to Misspecification in Growth Curve Models

This study investigated the sensitivity of fit indices to model misspecification in within-individual covariance structure, between-individual covariance structure, and marginal mean structure in growth curve models. Five commonly used fit indices were examined, including the likelihood ratio test statistic, root mean square error of approximation, standardized root mean square residual, comparative fit index, and Tucker-Lewis Index. The fit indices were found to have differential sensitivity to different types of misspecification in either the mean or covariance structures with severity of misspecification controlled. No fit index was always more (or less) sensitive to misspecification in the marginal mean structure relative to those in the covariance structure. Specifying the covariance structure to be saturated can substantially improve the sensitivity of fit indices to misspecification in the marginal mean structure; this result might help identify the sources of specification error in a growth curve model. An empirical example of children's growth in math achievement (Wu, West, &; Hughes, 2008 Wu, W., West, S. G. and Hughes, J. N. 2008. Effect of retention in first grade on children's achievement trajectories over four years: A piecewise growth analysis using propensity score matching.. Journal of Educational Psychology, 100: 727–740. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) was used to illustrate the results.     

Causal Decision Theory and EPR correlations

The paper argues that on three out of eight possible hypotheses about the EPR experiment we can construct novel and realistic decision problems on which (a) Causal Decision Theory and Evidential Decision Theory conflict (b) Causal Decision Theory and the EPR statistics conflict. We infer that anyone who fully accepts any of these three hypotheses has strong reasons to reject Causal Decision Theory. Finally, we extend the original construction to show that anyone who gives any of the three hypotheses any non-zero credence has strong reasons to reject Causal Decision Theory. However, we concede that no version of the Many Worlds Interpretation (Vaidman, in Zalta, E.N. (ed.), Stanford Encyclopaedia of Philosophy 2014) gives rise to the conflicts that we point out.