The Consequences of Ignoring Variability in Measurement Occasions Within Data Collection Waves in Latent Growth Models

In longitudinal data collection, it is common that each wave of collection spans several months. However, researchers using latent growth models commonly ignore variability in data collection occasions within a wave. In this study, we investigated the consequences of ignoring within-wave variability in measurement occasions using a Monte Carlo simulation and an empirical study. The results of the simulation study showed that ignoring heterogeneity resulted in biased estimates for some parameters, especially when heterogeneity was large and assessment dates had a skewed distribution. Models constructed on person-specific time points yielded precise estimates and more adequate model fit. In the empirical study, we demonstrated different time coding strategies with a subsample taken from Early Childhood Longitudinal Study Kindergarten Cohort.     

Client Uncertainty and the Process of Change in Psychotherapy: The Impact of Individual Differences in Self-concept Clarity and Intolerance of Uncertainty

We describe a number of ways in which two major components of client uncertainty, namely, self-concept clarity and intolerance of uncertainty may either facilitate or impede change in psychotherapy. Clients with low self-concept clarity find it much more difficult to clearly identify and understand their problematic thoughts, emotions, and behaviors; thus slowing down their progress through the various stages identified in Prochaska’s model of psychotherapeutic change. To illustrate, they may engage in much more contemplation prior to action, as they struggle to increase their awareness and insight. Clients with high intolerance of uncertainty experience substantial discomfort when faced with uncertainty, causing them to be highly motivated to avoid or minimize any aspects of psychotherapy that focus on change. This may cause them to avoid confronting their problems during the action stage of therapy. We further suggest that it would be beneficial to assess these two components of client uncertainty very early on in the therapeutic process, in order to facilitate a given client’s progress. Finally, we indicate a need for much more research that explores the role of these two individual difference constructs during therapy. This might include, for example, studies that directly examine how self-concept clarity and intolerance of uncertainty may relate to progress through each stage of change, or the selective use of avoidance strategies. Authorship of this paper is equal. A special thanks to Joan Olinger for her many helpful comments on this paper. This paper won the 2007 Wilfred Quaytman Award for Innovations in Psychotherapy, jointly sponsored by the Long Island Consultation Center and International Scientific Comminucations, Inc. to commemorate the spirit and dedication of Dr. Wil Quaytman, psychologist, psychotherapist, and founding editor of the Journal of Contemporary Psychotherapy.     

Alcohol intoxication reduces detection of asymmetry: an explanation for increased perceptions of facial attractiveness after alcohol consumption?

Ratings of physical attractiveness are related to degree of facial symmetry. Acute alcohol consumption affects ratings of physical attractiveness and also attenuates aspects of visual perception. We tested the hypothesis that increases in ratings of attractiveness associated with alcohol intoxication can be attributed at least in part to a reduced ability to discern facial asymmetry due to reductions in levels of visual perception. We examined whether alcohol intoxication reduces ability to detect asymmetry in approximately symmetrical images. Sober and intoxicated subjects were shown a series of simple geometric images to which they responded on whether they perceived each one to be symmetrical or asymmetrical. Intoxicated subjects were significantly less able to detect asymmetry than were sober subjects, providing support for the hypothesis.     

The reactive–proactive aggression questionnaire: differential correlates of reactive and proactive aggression in adolescent boys

This study reports the development of the Reactive–Proactive Aggression Questionnaire (RPQ), and the differential correlates of these two forms of aggression. Antisocial, psychosocial and personality measures were obtained at ages 7 and 16 years in schoolboys, while the RPQ was administered to 334 of the boys at age 16 years. Confirmatory factor analysis indicated a significant fit for a two‐factor proactive–reactive model that replicated from one independent subsample to another. Proactive aggression was uniquely characterized at age 7 by initiation of fights, strong‐arm tactics, delinquency, poor school motivation, poor peer relationships, single‐parent status, psychosocial adversity, substance‐abusing parents, and hyperactivity, and at age 16 by a psychopathic personality, blunted affect, delinquency, and serious violent offending. Reactive aggression was uniquely characterized at age 16 by impulsivity, hostility, social anxiety, lack of close friends, unusual perceptual experiences, and ideas of reference. Findings confirm and extend the differential correlates of proactive–reactive aggression, and demonstrate that this brief but reliable and valid self‐report instrument can be used to assess proactive and reactive aggression in child and adolescent samples. Aggr. Behav. 32:159–171, 2006. © 2006 Wiley‐Liss, Inc.     

Finding Treasures: Is the Community of Philosophical Inquiry a Methodology?

Studies in Philosophy and Education - In the world of Philosophy for Children (P4C), the word “method” is found frequently in its literature and in its practitioner’s handbooks....     

Le TASC200, une épreuve d’attention et de saillance visuelle : fidélité, validité et normes préliminaires

In the clinical setting, attention is classically assessed by tasks that do not take into account theoretically important aspects, such as the salience-based guidance of visual search. The aim of this study was to develop a paced paper-and-pencil task for clinical use based on strong theoretical accounts that would assess salience-based visual search and that would meet the psychometric requirements for the assessment of attention. Participants were required to search and cancel targets of varying visual saliences as quickly and as accurately as possible during a predefined short period of time. The targets were intermixed with distractors. In agreement with theories of salience-based visual search, the results showed that the most salient targets were detected more easily than less salient targets. The task exhibited a quite acceptable test-retest reliability, and two construct validity studies showed that different scores involve different processes. This new task fully complies with the major theories of salience-based guidance of attention during visual search. It also meets the requirements of a plausible clinical task since its psychometric qualities are quite good. Preliminary normative data (n = 863) are presented for clinical use.     

Transfert de la conscience morphologique de l’arabe langue première au français langue seconde au cours des trois premières années d’apprentissage

There is a great deal of evidence to support the role of morphological awareness in reading development. However, towards second language acquisition, transfer of morphological awareness from first to second language (L1 to L2) is still discussed. The underlying question concerns the extent to which morphological awareness is a specific or universal process, and its dependence of linguistic features. The aim of this study is to examine cross-linguistic transfer of morphological awareness from Arabic L1 to French L2 (morphological awareness and word reading) at different level of learning French L2 (F_L2). 106 Tunisian children, whose first language is Arabic, in 1st (n = 29; mean age; 8; 10 years), 2nd (n = 33; mean age; 9; 9 years) or 3rd year (n = 44; mean age; 10; 10 years) of learning F_L2 participated to this study. Their morphological awareness (inflectional or derivational oddity detection tasks) and their performance in word reading (one minute test) were assessed in standard Arabic and French, as well as their vocabulary knowledge in French. A series of fixed-order hierarchical regression analysis was performed on derivational awareness performances, inflectional awareness performances and word reading performances in F_L2, controlling for effects of other important variables (e.g. French vocabulary, French morphological awareness with word reading scores as outcome variable and French inflectional or derivational awareness with French inflectional or derivational awareness scores as outcome variable respectively, Arabic word reading, etc.). Results show significant contributions of L1 morpho-derivational awareness on F_L2 morpho-derivational awareness in 2nd year (12%), and of L1 morphological awareness on reading words F_L2 in 3^rd year (5%). These results confirm the cross-linguistic transfer of morphological awareness, particularly derivational, from L1 to L2 among alphabetic — but orthographically and morphologically distances — languages. They also suggest that such a transfer could be relatively limited. It could appear during learning process after achieving a threshold in F_L2 and before specific L2 skills take place. Thus, beyond the morphological opacity of Arabic (nonlinear morphology) and linguistic distance between Arabic and French, the morphological transfer could appear on rich and important morphological dimension in L1 and suggest dealing with the nature of cross-linguistic abilities in depth.