Anthropometry of Young Women

Abstract

Based upon a multidimensional model for characterizing physical activity, the development of two forms (college men, college women) of an attitude inventory is described. Items held to be representative of the six dimensions of the model were evaluated on the basis of factor and item analyses using data generated by the use of preliminary forms. Hoyt reliabilities ranged from .72 to .89 for the six scales. Scales were able to differentiate between appropriate high and low preference groups for a particular type of activity in all cases except physical activity perceived as “catharsis.” The stability of the instrument is shown by comparing measures of central tendency, variability, and reliability of the basic sample with those drawn from a second, but similar population. Normative data, instructions, and a list of items, are provided.     

Spike jump biomechanics in male versus female elite volleyball players

ABSTRACT

There are well-known biological differences between women and men, especially in technical-coordinative variations that contribute to sex differences in performance of complex movements like the most important offensive action in volleyball, the spike jump. The aim of this study was to investigate sex-dependent performance and biomechanical characteristics in the volleyball spike jump. Thirty female and male sub-elite volleyball players were analysed while striking a stationary ball with maximal spike jump height. Twelve MX13 Vicon cameras with a cluster marker set, two AMTI force plates, surface EMG, and a Full-Body 3D model in Visual3D were used. Main findings include sex differences (P< .05) in jump height (pη² = .73), approach [speed (pη² = .61), step length], transition strategy [plant angle, neuromuscular activation (pη² = .91), horizontal force maxima and impulses], acceleration distances [centre of mass displacement (pη² = .21), minimal knee and hip angles], use of torso and arms [incline, angular velocity (pη² = .23)]. Correlations support that the results cannot be explained fully by strength and power differences between sexes but represent the product of technical-coordinative variations. Their relevance is acknowledged for both sexes and numerous performance determinants displayed sex differences. The integration of such attributes into sex-specific training seems promising but its effect requires further investigation.     

Fine motor skills and executive function both contribute to kindergarten achievement

This study examined the contribution of executive function (EF) and multiple aspects of fine motor skills to achievement on 6 standardized assessments in a sample of middle-socioeconomic status kindergarteners. Three- and 4-year-olds' (n=213) fine and gross motor skills were assessed in a home visit before kindergarten, EF was measured at fall of kindergarten, and Woodcock-Johnson III Tests of Academic Achievement were administered at fall and spring. Correlations indicated that EF and fine motor skills appeared distinct. Further, controlling for background variables, higher levels of both EF and fine motor skills, specifically design copy, predicted higher achievement on multiple subtests at kindergarten entry, as well as improvement from fall to spring. Implications for research on school readiness are discussed.     

What Factors Determine the Uptake of A-level Physics?

There has been much concern recently in the UK about the decline in the number of students studying physics beyond age 16. To investigate why this might be we used data from a national database of student qualifications and a multilevel modelling technique to investigate which factors had the greatest impact on the uptake of physics at Advanced Level (A-level) in a particular year. Each factor of interest was entered into a separate model, while accounting for prior attainment and gender (both well-known predictors of A-level uptake). We found that factors associated with greater probability of uptake included better attainment in physics (or combined science) and maths qualifications at age 16 in comparison to other subjects, and (for girls only) attending an independent or grammar school. While it is difficult to address these factors directly, the results imply that more needs to be done to improve relative performance at General Certificate of Secondary Education, perhaps by increasing the supply of specialist physics teachers at this level and to overcome the perception (especially among girls) that physics is a particularly difficult subject.     

A Vocationalized School Science Curriculum?

This article is concerned with the meaning and legitimacy of the view that the secondary science curriculum can be given a vocational emphasis, and with a current attempt to create such a curriculum. Although this perspective on the science curriculum has a long history, in recent decades it has received little attention. This article examines recent research into the vocational and work‐related aspects of secondary school science, and the historical and policy background. Its empirical focus is a late secondary course with the title “Applied Science”, which was introduced into schools in England and Wales in 2002. It draws on the preliminary findings of a research study focusing on the origins and implementation of this course. Overall, the article provides an overview of the major issues and research agenda associated with the notion of a vocational or applied school science curriculum, focusing ultimately on the key issues of educational purpose, pedagogy, and status.     

The Myth of the Little Red Schoolhouse: Challenges and Opportunities for Rural School Improvement

Reformers suggest that parental choice will improve equity by making it possible for parents to select better schools for their children. A key assumption behind this claim is that parents choose from a set of schools that range in quality. Data from this longitudinal interview study suggest this assumption may be false. In one Midwestern city, parents of different social class backgrounds did not consider schools of similar quality. The set of schools considered by parents, called the choice set, differed; though parents' choice processes and reasoning were remarkably similar. These data suggest that in addition to the well-documented constraints of income, information, and transportation, the resources used to construct choice sets may further constrain the schools parents consider. These findings raise questions about the ability of current choice policies to deliver the equity outcomes reformers suggest.     

Development and validation of an assessment of adult educators' reading instructional knowledge

The purpose of this paper is to describe briefly the development and utility of the Assessment of Reading Instructional Knowledge-Adults (ARIK-A), the only nationally normed (n?=?468) measure of adult reading instructional knowledge, created to facilitate professional development of adult educators. Developmental data reveal reliabilities ranging from 0.73 to 0.85 for five ARIK-A scales (alphabetics, fluency, vocabulary, comprehension, and assessment) and 0.91 for the composite score; factor analytic data and expert review provide support for construct validity as well. Information on how to use the ARIK-A to determine mastery and relative standing is presented. With two alternate forms, the ARIK-A is a promising and needed tool for adult education practitioners within continuing education and professional development contexts.     

The door‐in‐the‐face compliance strategy: An individual differences analysis of two models in an AIDS fundraising context

This study examined the reciprocal concessions and self‐presentation accounts of the door‐in‐the‐face (DITF) compliance strategy within a fundraising context. Subjects were classified as low or high in exchange orientation, and as low or high in approval motivation on the basis of a pretest questionnaire. As predicted on the basis of reciprocal concessions theory, a significant interaction was obtained between exchange‐orientation and message strategy. For high exchange‐oriented subjects, the DITF message strategy substantially increased compliance rates, relative to the single‐request control message. However, low exchange‐oriented subjects were actually more charitable in response to the control message. Analysis of a post‐treatment measure of obligation to the requestor revealed that obligation could account for less than half of the interaction effect, a finding which is inconsistent with concessions theory. Self‐presentation theory suggests that DITF should work best when directed toward targets who are high in their approval motivation, but this hypothesized interaction between approval motivation and message strategy did not materialize.