Cross-modal morphological priming in French

We investigated the lexical representation of morphologically complex words in French using a cross-modal priming experiment. We asked if the lexical representation for derivationally suffixed and prefixed words is morphologically structured and how this relates to the phonological transparency of the surface relationship between stem and affix. Overall we observed a clear effect of the morphological structure for derived words, an effect that is not explicable by a formal effect. Prefixed words prime their stems, even when they have a phonologically opaque relationship, and a prefixed word primes another prefixed word derived from the same stem. However, suffixed words prime their stems only if their relationship is phonologically transparent. Two suffixed words derived from the same stem prime each other. These two latter results differ from those observed in English by Marslen-Wilson, Tyler, Waksler, and Older (1994). We argue that it is the specific properties of the language, such as rhythm, that could explain the differences between the results observed for the two languages and we propose a model where prefixed and suffixed words are decomposed at different stages during their identification process.     

Pediatric trichotillomania: descriptive psychopathology and an open trial of cognitive behavioral therapy

In study 1, 46 children and adolescents with trichotillomania who sought treatment at 2 specialty outpatient clinics were assessed. Most children reported pulling hair from multiple sites on the body, presented with readily visible alopecia, reported spending 30-60 minutes per day pulling or thinking about pulling, and reported experiencing significant distress about their symptoms. Most were described by their parents as having significant problems in school functioning. Few children met criteria for obsessive-compulsive disorder or tic disorder. Child and family rates of other forms of psychopathology were high. In study 2, 22 of these children were enrolled in an open trial of individual cognitive behavioral therapy with particular attention to relapse prevention. Trichotillomania severity decreased significantly and 77% of children were classified as treatment responders at post-treatment and 64% at 6-month follow-up.     

Differential parenting and children's behavioral problems: curvilinear associations and mother-father combined effects

In this study the associations between mothers' and fathers' differential parenting and children's oppositional and emotional problems were examined. A curvilinear relationship between differential parenting and children's outcomes was hypothesized, as well as the combined effect of mothers' and fathers' parenting. Data came from a community sample of 599 two-parent families with multiple children per family and were analyzed using a cross-classified multilevel model. Results showed that both family average parenting and differential parenting explained unique variance in children's outcomes. The curvilinear hypothesis was supported for oppositional behavior but not for emotional problems. The effects of mother and father positivity were found to be additive for both family average parenting and differential parenting, but for negativity there was evidence for multiplicative effects.     

Comment les parents,les enseignants et les cliniciens évaluent les troubles du comportement externalisé du jeune enfant ? Étude de la variabilité des jugements évaluatifs et de son impact sur le développement de l’enfant

Present study aims at refining assessment of preschoolers’ behavior. Data was provided with questionnaires and observation on 118 preschoolers when recruited and 12 months later by their parents, their teachers and clinicians. The results confirmed high variations in informants’ ratings as well as negative effects of such variations regarding later child's development. The results imply the need for a multi-informant and multi-method assessment of preschoolers’ disruptive behavior. The implications of our findings for clinical purpose are discussed.     

Self-Efficacy Beliefs Amongst Parents of Young Children: Validation of a Self-Report Measure

The self-efficacy belief (SEB) concept is discussed in the context of parenting. A questionnaire, the Echelle Globale du Sentiment de Compétence Parentale (EGSCP), assessing several domain-specific SEBs and three related cognitive constructs, was developed with 705 French-speaking parents of 3- to 7-year-old children. The EGSCP displayed good psychometric properties. Age-related differences and differences between mothers and fathers illustrated the questionnaire’s discriminative properties. Relations were also found between EGSCP and several criterion variables: support, satisfaction, self-esteem and stress, childrearing behavior, and children’s social competence and behavior. The refinement of the SEB concept in the parenting context provides a more comprehensive view of both mothers’ and fathers’ cognition. The empirical and clinical implications of this are discussed.     

The role of feature type and causal status in 4–5-year-old children's biological categorizations

The present study investigated the role of the causal status of features and feature type in biological categorizations by young children. Study 1 showed that 5-year-olds are more strongly influenced by causal features than effect features; 4-year-olds exhibit no such tendency. There therefore appears to be a conceptual change between the ages of 4 and 5 in the evaluation of the causal relations between features that characterize biological categories. The aim of Study 2 was to identify the nature of the abstract beliefs that underlie children's categorial choices. Results show that 5-year-olds base category choices on causal features only when the status of the cause is associated with an internal feature and not if the feature is merely a surface feature. Children thus use biological knowledge to perform the task.     

Sex differences in ambulation and defecation in the degu (Octodon degus)

The degu, a hystricomorph rodent, was studied in both an open-field (OF) and running-wheel testing situation. Of primary interest was whether there would be appparent sex differences in ‘emotionality’ and/or locomotion measures. Unlike domesticated species, females were found to ambulate and defecate more frequently than males in the OF. Both sexes increased their rates of defecation with exposure to the field. The running-wheel data indicatedf that overall males were more active, particularly during the dark phase of the light cycle. The data are examined with respect to similar measures obtained from domesticated laboratory rodents.     

Stability of young children's attachment representations: Influence of children's and caregiver's characteristics

This research explores the stability of attachment representations, assessed by the Attachment Story Completion Task, within early childhood. Hypotheses were also formed about the influence of parenting, externalizing behavior and intelligence quotient (IQ) on the developmental course of children's attachment representations. Data were collected from 358 French-speaking Belgian children. Security and disorganization showed a linear improvement with age. The effect of time on the two growth curves was influenced by the child's externalizing behavior. When language abilities were controlled for in a subsample of referred children for externalizing behavior, the growth in security was found to be influenced by reasoning IQ, but the effects for disorganization were unchanged. The implications of the results for both research and clinical purposes are discussed.     

Externalizing behavior trajectories: The role of parenting, sibling relationships and child personality

Based on longitudinal multilevel modeling and using a multi-informant strategy, this study examines trajectories of externalizing problem behavior (EPB) in childhood as predicted by parental behavior (absolute level of parenting [ALP] and parental differential treatment [PDT]), parental self-efficacy (PSE), child personality and sibling relationships. Besides main effects, several interactions were tested. The effects of changes in parenting on changes in EPB were also examined. A total of 119 families from the French-speaking area of Belgium rearing a child (3- to 5-year-olds at the onset of the study) referred for EPB were studied. The effects of both level-of and changes-in mothers' ALP were partially confirmed, but for fathers, only ALP was predictive. There were some significant interactions between ALP and PDT for both parents. Mothers' PSE explained some variance in EPB, additional to that explained by the parenting measures. Some parenting by personality and by sibling relationship interactions were found.