Does Object Height Affect the Dart Throwing Motion Angle during Seated Activities of Daily Living?

Abstract

Complex wrist motions are needed to complete various daily activities. Analyzing the multidimensional motion of the wrist is crucial for understanding our functional movement. Several studies have shown that numerous activities of daily livings (ADLs) are performed using an oblique plane of wrist motion from radial-extension to ulnar-flexion, named the Dart Throwing Motion (DTM) plane. To the best of our knowledge, the DTM plane angle performed during ADLs has not been compared between different heights (e.g. table, shoulder and head height), as is common when performing day-to-day tasks. In this study, we compared DTM plane angles when performing different ADLs at three different heights and examined the relationship between DTM plane angles and limb position. We found that height had a significant effect on the DTM plane angles - the mean DTM plane angle was greater at the lower level compared to the mid and higher levels. A significant effect of shoulder orientation on mean DTM plane angles was shown in the sagittal and coronal planes. Our findings support the importance of training daily tasks at different heights during rehabilitation following wrist injuries, in order to explore a large range of DTM angles, to accommodate needs of common ADLs.     

Educational Polyphony

While much has been written about relativism, multiculturalism and dialogue the case of education is special as in education the teacher aims to promote a set of values. This role of the teacher as bearing a worldview to be advanced is rarely addressed in the literature and is the focus of this paper. In the first section we explore the concept of polyphony and the vision it presents for education. We then turn to the idea of dialogue as developed by Bakhtin and present a communicative model conducive to a polyphonic educational environment. In the third section we portray the dynamics of polyphony in the classroom suggesting an analysis of the parameters (perspective and position) defining the participants in the educational setting and the relations between them. We conclude by drawing the implications of our position to the question set out above: the paradox the teacher is subject to in advancing a set of values in a dialogue with students.     

Validation of the Dependency-Oriented and Achievement-Oriented Psychological Control Scale in Middle Childhood

The psychometric properties of the Dependency-oriented and Achievement-oriented Psychological Control Scale (DAPCS) have been proved appropriate for adolescent samples. Since parental psychological control plays a key role in the development of child pathology from an early age, it is important to evaluate the DAPCS in younger samples too. We examine the DAPCS’ validity in two samples of elementary school age children (n = 180 and n = 118). Exploratory and confirmatory factor analyses in the first sample supported a two-factor structure, indicating the distinction between dependency-oriented psychological control (DPC) and achievement-oriented psychological control (APC). Confirmatory factor analysis in the second sample resulted in successful replication of the factor structure. Significant negative correlations between both parental psychological control dimensions and parental emotional support indicated the convergent validity of the scale. Discriminant validity was indicated by a significant unique association between higher levels of DPC and child perceived social problems, and higher levels of APC and child sensitivity to mistakes. This study provides initial justification for the application of a shorter version of the DAPCS in clinical and research settings dealing with parental psychological control in middle childhood and related child adjustment problems.     

Associations Between Attachment Narratives and Self-Report Measures of Attachment in Middle Childhood: Extending Evidence for the Validity of the Child Attachment Interview

The assessment of attachment security in infancy and adulthood is well-studied, but middle childhood has been relatively neglected in the literature. The Child Attachment Interview (CAI) represents a promising assessment of attachment in middle childhood; recent evidence supports its reliability and validity in restricted samples. We assessed the construct validity of the CAI among a diverse sample of 104 8–12 year-old children (M _age  = 9.80 years; 50 boys; 49 % family income <$40,000; 38 % Latino/a). We evaluated associations among CAI variables and self-report measures of attachment (convergent validity). Further, we evaluated whether CAI variables uniquely relate to theoretically-relevant constructs (internalizing symptoms) above and beyond self-reported attachment (incremental validity) and a theoretically-distinct construct, child temperament (discriminant validity). Our findings support the CAI’s validity, and have important implications for assessing and understanding attachment processes in middle childhood, as well as their development across the lifespan.     

The Effect of Rehabilitation on Positive Interpretations of Illness

Postoperative patients received one of the three, alternative pain-management treatments: patient-controlled analgesia (PCA); perceived PCA (PPCA without actual control) and continuous intravenous infusion of analgesics (CII). Pain reports, morphine consumption and satisfaction of the groups were compared, and influences of individual differences in preferences for control and trait anxiety were tested. The main findings were: (1) PCA patients consumed less morphine and reported more pain and somewhat higher satisfaction; (2) PPCA patients were intermediate between the other two groups in pain reports and morphine consumption and lowest in satisfaction and (3) individual differences did not moderate the effects of PCA. The findings were interpreted as indicating that the main effect of PCA is increased pain tolerance, and that a bio-psycho-social framework is most appropriate to explain these effects.     

The Predictive Role of Simulations in Assessing Military Performance

The current study assessed the predictive validity of simulations to improve the military selection system. Four navy simulations were developed and their predictive validity was measured. The performance of 1007 Israeli navy soldiers was measured in a longitudinal study, which was carried on for almost two years. Participants’ performance in four simulations (naval-navigation test, raft sailing, rubber boat [zodiac] mounting, and military tent assembly) was measured and used as a behavioral predictor for their performance at the end of their first year of active military service on combat ships. All but the raft sailing simulation predicted participants’ performance.     

Assessment of executive functioning in childhood epilepsy: The Tower of London and BRIEF

Children and adolescents with epilepsy are known to demonstrate executive function dysfunction, including working memory deficits and planning deficits. Accordingly, assessing specific executive function skills is important when evaluating these individuals. The present investigation examined the utility of two measures of executive functions—the Tower of London and the Behavioral Rating Inventory of Executive Functioning (BRIEF)—in a pediatric epilepsy sample. Ninety clinically referred children and adolescents with seizures were included. Both the Tower of London and BRIEF identified executive dysfunction in these individuals, but only the Tower of London variables showed significant relations with epilepsy severity variables such as age of epilepsy onset, seizure frequency, number of antiepileptic medications, etc. Further, the Tower of London and BRIEF variables were uncorrelated. Results indicate that objective measures of executive function deficits are more closely related to epilepsy severity but may not predict observable deficits, as reported by parents. Comprehensive evaluation of such deficits, therefore, should include both objective measures as well as subjective ratings from caregivers.