The Use of Structure Coefficients to Address Multicollinearity in Sport and Exercise Science

A common practice in general linear model (GLM) analyses is to interpret regression coefficients (e.g., standardized β weights) as indicators of variable importance. However, focusing solely on standardized beta weights may provide limited or erroneous information. For example, β weights become increasingly unreliable when predictor variables are correlated, which is often the case in the social sciences. To address this issue, structure coefficients, which are simply the bivariate correlation between a predictor and the synthetic ? variable, should also be interpreted. By examining β weights and structure coefficients in conjunction, the predictive worth of each independent variable can be more accurately judged. Despite this benefit, researchers in the field of sport and exercise science have rarely reported structure coefficients when conducting multiple regression analysis. Thus, the purpose of the present article is to discuss problems associated with the sole interpretation of β weights and to demonstrate how structure coefficients can be incorporated to improve accuracy of interpretation. Additionally, a content analysis was conducted to examine current trends in reporting multiple regression results within sport and exercise science research.     

How did Illiterates Fare as Literacy Became Almost Universal? Evidence from Nineteenth and Early Twentieth Century Liverpool

A sample of marriage registers from the parish of Liverpool St. Nicholas Church in England between 1839–1927 is used to examine changing characteristics of grooms who signed with a mark over this period. The proportion of illiterate grooms in the parish fell from about a third to under 5%. Age at marriage and likelihood of being a widower rose markedly for illiterates over the period relative to literate grooms. The percentage of illiterate grooms marrying literate brides rose markedly as well; however, in contrast with national tendencies, there was less evidence of assortative mating by literacy or of any downward trend in this for the Liverpool sample. There was no evident rise in literacy requirements for employment in the transport sector which dominated the Liverpool economy throughout the period under consideration. This implied that even in the first three decades of the 20^th century with signature ability almost universal, most illiterate grooms in Liverpool were not in unskilled occupations. However, illiterate grooms were increasingly less likely over time to be in skilled manual occupations.     

Cross‐cultural epistemological orientations to socioscientific issues

The purpose of this investigation was to examine, from a cross‐cultural perspective, students' epistemological patterns of reasoning about socioscientific issues (SSI), and to identify potential interactions of cultural and scientific identity. Mediating factors associated with students' argumentation and discourse about SSI, as well as the public's understanding of science, has been identified as an important area of investigation in the field of science education. This mixed‐methods design included over 300 students from Jamaica, South Africa, Sweden, Taiwan, and the United States. Students responded to instruments designed to assess their epistemological conceptualizations and justifications related to distributive justice, allocation of scarce medical resources, and epistemological beliefs over five dimensions related to scientific knowledge. Four iterations of a coding scheme produced over 97% inter‐rater agreement for four independent coders. Results indicate there is a consistent trend toward epistemological congruity across cultures within inductively derived themes of: (1) Fairness; (2) Pragmatism; (3) Emotive Reasoning; (4) Utility; and (5) Theological Issues. Moreover, there were no discernable differences in terms of how students from these countries presented their beliefs on the sub‐categories of each of the five major categories. It appears that students displayed a high degree of congruence with respect to how they frame their reasoning on this SSI as well as their justifications for their epistemological beliefs. There were statistically significant differences regarding the ability to raise scientifically relevant questions among countries. Commonalities as well as distinguishing characteristics in epistemological orientations are compared and contrasted and connections to a model of socioscientific reasoning with implications for research and pedagogy are discussed. © 2013 Wiley Periodicals, Inc. J Res Sci Teach 50:251–283, 2013     

Peers and academic achievement: A longitudinal study on selection and socialization effects of in-class friends

The present study was conducted to analyze whether in-class friends influence each other's grades, and whether adolescents tend to select friends that are similar to them in terms of academic achievement. During 1 academic year, 542 eighth-grade students (M age = 13.3 years) reported on 3 different occasions on their in-class friendship networks. At these occasions their report card grades for 3 subjects were copied from their files. We tested whether academic achievement functions as a selection criterion for friendship, and whether academic achievement is influenced by in-class friends, using social network analytic techniques. Socialization effects for Dutch and English language grades, but not for mathematics grades, were found. We found no support for selection effects of grades.     

The 2001 Bower Award for business leadership presented to Irwin Mark Jacobs

Irwin Mark Jacobs, Founder and CEO of QUALCOMM, Winner of the 2001 Bower Award for Business Leadership.Irwin Mark Jacobs is that rare individual who combines scientific and technical ingenuity with entrepreneurial spirit, strong business leadership, and philanthropic spirit to become a leader in intersecting arenas. Jacobs has combined these qualities to position his company, QUALCOMM, into the world's leader in cellular telephony.     

Technology and Academic Virtue: Student Plagiarism Through the Looking Glass

Plagiarism is the misuse of and failure to acknowledge source materials. This paper questions common responses to the apparent increase in plagiarism by students. Internet plagiarism occurs in a context – using the Internet as an information tool – where the relevant norms are far from obvious and models of virtue are difficult to identify and perhaps impossible to find. Ethical responses to the pervasiveness of Internet-enhanced plagiarism require a reorientation of perspective on both plagiarism and the Internet as a knowledge tool. Technological strategies to “catch the cheats” send a “don’t get caught” message to students and direct the limited resources of academic institutions to a battle that cannot be won. More importantly, it is not the right battleground. Rather than characterising Internet-enabled plagiarism as a problem generated and solvable by emerging technologies, we argue that there is a more urgent need to build the background conditions that enable and sustain ethical relationships and academic virtues: to nurture an intellectual community.