On a test of dimensionality in redundancy analysis

Lazraq and Cléroux (Psychometrika, 2002, 411–419) proposed a test for identifying the number of significant components in redundancy analysis. This test, however, is ill-conceived. A major problem is that it regards each redundancy component as if it were a single observed predictor variable, which cannot be justified except for the rare situations in which there is only one predictor variable. Consequently, the proposed test leads to drastically biased results, particularly when the number of predictor variables is large, and it cannot be recommended for use. This is shown both theoretically and by Monte Carlo studies.The work reported in this paper was supported by Grant A6394 to the first author from the Natural Sciences and Engineering Research Council of Canada.     

A comparison of coping factors in Western and non-Western cultures

This study presents convergent support for the use of three empirically constructed factors, across four samples, from the Ways of Coping Questionnaire. Planning, Positive Reappraisal, and Distancing factors were congruent for comparisons made between U.S. healthcare workers, Chinese healthcare workers, Chinese teachers, and Taiwanese teachers. Additional evidence of congruency was provided on specific factors between specific pairs of groups. The results support the usage of common factors across languages, cultures, and occupational groups but also highlight the importance of not administering a test in a different cultural setting without assessing its dimensionality.     

Coarsening behaviour of gamma prime precipitates and concurrent transitions in the interface width in Ni-14 at.% Al-7 at.% Cr

Coupling atom probe tomography and transmission electron microscopy, the temporal evolution of γ′ precipitate morphology and size distribution and compositional width of the γ/γ′ interface, have been tracked in a model Ni-14Al-7Cr (at.%) alloy, during isothermal annealing at 800?°C subsequent to rapid quenching. During the initial annealing period, coalescence-dominated growth and coarsening of γ′ precipitates are accompanied by a gradual decrease in the interface width, eventually leading to classical LSW coarsening with a constant interface width at extended annealing time periods.     

Simultaneous Two-Way Clustering of Multiple Correspondence Analysis

A 2-way clustering approach to multiple correspondence analysis is proposed to account for cluster-level heterogeneity of both respondents and variable categories in multivariate categorical data. Specifically, in the proposed method, multiple correspondence analysis is combined with k-means in a unified framework in which k-means is applied twice to partition the object scores of respondents and the weights of variable categories. In this way, joint clusters that relate a subgroup of respondents exclusively to a subset of variable categories are obtained. The proposed method provides a low-dimensional map of displaying variable category points and the centroids of joint clusters simultaneously. In addition, it offers joint-cluster memberships of variable categories as well as respondents. A Monte Carlo study is conducted to assess the parameter recovery capability of the proposed method based on synthetic data. An empirical application concerning Korean consumers' preferences toward various underwear brands and attributes is presented to demonstrate the effectiveness of the proposed method as compared with 2 relevant extant approaches.     

Measuring Spiritual Fitness: Atheist Military Personnel,Veterans, and Civilians

This study investigated the impact of transcendent item phrasing (i.e., phrasing which assumes the respondent believes in certain sacred or supernatural concepts) on the validity of the U.S. Army’s Comprehensive Soldier Fitness (CSF) program’s spiritual fitness scale when administered to atheist military personnel, veterans, and civilians. Results indicated that the inclusion of transcendent phrasing led to reduced concurrent validity for the spiritual fitness scale when administered to atheist military personnel and veterans, reduced concurrent and predictive validity when administered to atheists’ but not Christians’ spiritual fitness. Notably, the removal of transcendent phrasing actually led to increased concurrent validity for Christian respondents. Taken together, these findings suggest the Revised scale, which is composed of items that do not rely on transcendent phrasing, produces better psychometric outcomes for both atheist and Christian respondents. Implications for the CSF program and the measurement of spiritual fitness are addressed.     

Understanding the Construct of Maximizing Tendency: A Theoretical and Empirical Evaluation

More attention is being given to the stable, dispositional tendency to maximize when making decisions. Within the growing body of research has been an exchange regarding the appropriate means of measuring maximizing tendency. Guided primarily by psychometric and statistical analyses, these studies have critiqued and revised existing maximizing tendency scales and/or introduced new measures. Importantly, many of these discussions seem to ignore theoretical considerations of the construct of maximizing. In this article, we revisit the original work of Herbert Simon, from where the theory of maximizing tendency was developed, and provide a theoretical account for how maximizers can be distinguished from satisficers and the implications therein for the measurement of maximizing tendency. Across two studies, we provide an updated psychometric, correlational, and behavioral comparison of the two most popular maximizing tendency scales: the Maximization Scale and the Maximizing Tendency Scale. Results demonstrate that the Maximizing Tendency Scale is more theoretically and psychometrically valid than the Maximization Scale. Copyright © 2015 John Wiley & Sons, Ltd.     

Typologies of Helicopter Parenting in American and Chinese Young-Adults’ Game and Social Media Addictive Behaviors

Journal of Child and Family Studies - Helicopter parenting has emerged as a prevalent phenomenon in families with adult children. Due to its developmentally inappropriate nature, helicopter...     

Adaptive memory: determining the proximate mechanisms responsible for the memorial advantages of survival processing

J. S. Nairne, S. R. Thompson, and J. N. S. Pandeirada (2007) suggested that our memory systems may have evolved to help us remember fitness-relevant information and showed that retention of words rated for their relevance to survival is superior to that of words encoded under other deep processing conditions. The authors present 4 experiments that uncover the proximate mechanisms likely responsible. The authors obtained a recall advantage for survival processing compared with conditions that promoted only item-specific processing or only relational processing. This effect was eliminated when control conditions encouraged both item-specific and relational processing. Data from separate measures of item-specific and relational processing generally were consistent with the view that the memorial advantage for survival processing results from the encoding of both types of processing. Although the present study suggests the proximate mechanisms for the effect, the authors argue that survival processing may be fundamentally different from other memory phenomena for which item-specific and relational processing differences have been implicated. (PsycINFO Database Record (c) 2010 APA, all rights reserved).     

Gender Stereotypes Depicted by Western and Korean Advertising Models in Korean Adolescent Girls�� Magazines

Using content analysis based on Goffman??s (1979) typology, the authors examined gender role stereotypes in Korean fashion magazines targeting adolescent girls. Korean women were more stereotypically portrayed than any other group as smiling, pouting, and with a childlike or cute expression. On the other hand, Western women were more stereotypically portrayed than any other group in the categories of licensed withdrawal and body display. In some categories, male models were more female-stereotypically portrayed than female models of a particular race. Implications of the findings, future research suggestions, and limitations of the current study are discussed.