Search results for "longitudinal"
showing 10 items of 1501 documents
Development of math anxiety and its longitudinal relationships with arithmetic achievement among primary school children
2019
Abstract The aim of this study is to examine the development of two separable aspects of math anxiety, anxiety about math-related situations and anxiety about failure in math, and their cross-lagged relationship with arithmetic achievement. The mean level of anxiety about math-related situations decreased among second, third, and fourth graders, and the level of anxiety about failure in math declined among third, fourth, and fifth graders. The rank-order of individuals was more stable in arithmetic achievement than in either aspect of math anxiety. Arithmetic achievement predicted later anxiety about failure in math, but neither aspect of math anxiety predicted later achievement. The result…
Early cognitive predictors of PISA reading in children with and without family risk for dyslexia
2018
Abstract This study examined language skills and pre-literacy skills (phonological awareness, rapid naming, and letter knowledge) before school-age as predictors of PISA reading at age 15 in two groups of children, with (n = 88) and without (n = 70) family-risk for dyslexia . Moreover, effects of family-risk on these early predictors, reading fluency , and PISA reading were examined while controlling the effect of gender. Children were followed from age 2 to 15. Family-risk had a significant effect on early language and pre-literacy skills, reading fluency and PISA reading. A similar model predicting PISA reading fitted the data well in the Family-risk and the No family-risk group. Languag…
A Comparison of Dyadic and Social Network Assessments of Peer Influence.
2021
The present study compares two methods for assessing peer influence: the longitudinal actor–partner interdependence model (L-APIM) and the longitudinal social network analysis (L-SNA) Model. The data were drawn from 1,995 (49% girls and 51% boys) third grade students ( Mage= 9.68 years). From this sample, L-APIM ( n = 206 indistinguishable dyads and n = 187 distinguishable dyads) and L-SNA ( n = 1,024 total network members) subsamples were created. Students completed peer nominations and objective assessments of mathematical reasoning in the spring of the third and fourth grades. Patterns of statistical significance differed across analyses. Stable distinguishable and indistinguishable L-AP…
The Role of Information and Communication Technologies in the Relationship Between Group Effectiveness and Group Potency
2008
The aim of this research is to examine the role of information and communication technologies in the relationship between group effectiveness and group potency changes. A laboratory experiment compared 44 groups of four members, working in two communication media—face-to-face condition and computer-mediated communication (CMC). Groups developed a project during 4 weekly meetings during a 1-month period. No significant difference in group potency between communication media was found initially. However, different patterns of group potency development over time were identified. Group potency increased in the face-to-face condition, whereas it remained stable in the CMC condition. Results sho…
Higher Education from a Longitudinal and Life Course Perspective
2015
International audience; This symposium brings together scholars from across Canada, Europe, and the United States to explore how longitudinal and life course research can be used to study higher education. Highlighting both qualitative and quantitative research, we will explore aspects of social reproduction, inequality, stratification, wellbeing, and school-to-work transitions.
Sociometric status of young adults: Behavioural correlates, and cognitive-motivational antecedents and consequences
2001
A cross-lagged longitudinal study was carried out to investigate whether social reaction styles and loneliness serve as antecedents and consequences of sociometric status among young adults. Behavioural correlates of sociometric status were also studied. Questionnaires measuring sociometric ratings, social reaction styles, loneliness, and group atmosphere were ”lled in by 154 students one week after starting at a new school, then half a year later, and ”nally, one year later. In Measurement 2, the participants’ social behaviour was rated by their classmates. The results indicated that social reaction styles, feelings of loneliness, and satisfaction with the group atmosphere prospectively p…
Testing the direct and moderator effects of the stressor-detachment model over one year : A latent change perspective
2018
ABSTRACTTo test the direct and moderator effects of the stressor–detachment model from a long-term perspective, we investigated whether workload and detachment are related to changes in exhaustion and sleep difficulties over one year. We also examined whether detachment attenuates the relationship between high workload and these outcomes both cross-sectionally and over time. Questionnaire data with 1722 respondents at Time 1 and 1182 respondents at Time 2 were collected. We used a latent change score approach to analyse the data in order to identify intra-individual change among the studied constructs. Our results showed that high workload and low detachment at baseline were related to an i…
Magnetic resonance imaging of the siliceous skeleton of the demosponge Lubomirskia baicalensis
2005
The skeletal elements (spicules) of the demosponge Lubomirskia baicalensis were analyzed; they are composed of amorphous, non-crystalline silica, and contain in a central axial canal the axial filament which consists of the enzyme silicatein. The axial filament, that orients the spicule in its longitudinal axis exists also in the center of the spines which decorate the spicule. During growth of the sponge, new serially arranged modules which are formed from longitudinally arranged spicule bundles are added at the tip of the branches. X-ray analysis revealed that these serial modules are separated from each other by septate zones (annuli). We describe that the longitudinal bundles of spicule…
Prenatal exposure to perfluoroalkyl substances, immune-related outcomes, and lung function in children from a Spanish birth cohort study.
2019
Background: Prenatal exposure to perfluoroalkyl substances (PFASs) has been associated with impaired immune and respiratory health during childhood but the evidence is inconsistent and limited for lung function. We studied the association between prenatal PFASs exposure and immune and respiratory health, including lung function, up to age 7 years in the Spanish INMA birth cohort study. Methods: We assessed four PFASs in maternal plasma samples collected during the 1st trimester of pregnancy (years: 2003-2008): perfluorohexane sulfonate (PFHxS), perfluorooctane sulfonate (PFOS), perfluorooctanoate (PFOA), and perfluorononanoate (PFNA). Mothers reported the occurrence (yes/no) of lower respir…
Do coaching style and game circumstances predict athletes' perceived justice of their coach? A longitudinal study in elite handball and volleyball te…
2018
Objective: The present longitudinal study is the first to examine game to game fluctuations of perceived justice of elite volleyball and handball coaches. More specifically, we studied whether coaching style (i.e., need support versus control), coach behaviors (decision justifications), player’s status (i.e., starter or substitute), and game result (win/loss) predicted athletes’ perceived justice and its fluctuations. Methods: A longitudinal questionnaire study was performed during 6 consecutive weeks among Belgian female volleyball (N = 57) and male handball players (N = 39). We administered a general questionnaire (i.e., need support/control) the first week, and game-specific questionnair…