Combining Reliability Coefficients: Toward Reliability Generalization of the Conceptions of Mathematics Questionnaire

2005 ◽  
Vol 96 (3) ◽  
pp. 627-634 ◽  
Author(s):  
Andile Mji ◽  
Haitham M. Alkhateeb
Keyword(s):  
United States ◽  
South Africa ◽  
Analysis Of Variance ◽  
The United States ◽  
Reliability Generalization ◽  
Variance Testing ◽  
The Difference ◽  
Post Hoc ◽  
Strength Of Association ◽  
Reliability Coefficients

The combined coefficient alpha from studies reporting the reliability of scores using the Conceptions of Mathematics Questionnaire were computed. Five studies comprising 898 participants were evaluated. A test of differences among the independent coefficients alpha was statistically significant (χ42 = 10.38, p = .04) for the Fragmented and (χ42 = 11.58, p = .02) for the Cohesive subscales. Post hoc comparisons showed the difference ( F129,299= 1.50, p = .003) was between Australia and Nigeria for the former and ( F155,157 = 1.54, p = .004) between South Africa and the United States for the latter alpha values. A one-way analysis of variance, testing for homogeneity among means within each subscale, indicated that these were homogeneous because the measure of the strength of association accounted for 10% of variability. As reliability coefficients were from homogeneous samples and alpha values were not different, the combined reliability is the best estimate of the population reliability for each subscale.

scholarly journals Notational analysis in female grand slam tennis competitions

Kinesiology ◽  
2021 ◽  
Vol 53 (1) ◽  
pp. 154-161
Author(s):  
Alejandro Sánchez-Pay ◽  
José Antonio Ortega-Soto ◽  
Bernardino J. Sánchez-Alcaraz
Keyword(s):  
United States ◽  
Analysis Of Variance ◽  
The United States ◽  
Wilcoxon Test ◽  
Specific Training ◽  
Improve Performance ◽  
Test Analysis ◽  
Notational Analysis ◽  
Break Points ◽  
Post Hoc

Grand Slam tennis tournaments are played on different surfaces. The aims of the present study were to analyse the technical differences in the Grand Slam tournaments (Australian Open or AO, Roland Garros or RG, Wimbledon or W, and the United States Open or US), as well as to establish differences between winning and losing players. A total of 580 sets in 248 matches played in Grand Slams between 2017 and 2018 were analysed. To observe differences between the tournaments, a one-way analysis of variance (Kruskal Wallis) with the Bonferroni post-hoc test was performed. Univariate (Wilcoxon test) analysis of data was carried out to show the differences between the winning and losing performances of sets. Players who had more aces, points won on the 1st serve, winning shots and net points won more matches in the AO, W and US than in the RG (p<.05). However, in RG, players won more receiving points (43.56% of the points played) with chances to break the opponents’ service game. The results also showed that the winning players were superior in both service and receiving, and the most influential variables on the outcome of the match were percentage of receiving points won, break points won, and percentage of points won on the first serve. Such knowledge may have implications in the design of appropriate game strategies and specific training sessions to improve performance in professional women’s tennis.

scholarly journals Economic Growth and Unemployment Nexus: Okun’s Two-Version Case for Nigeria, South Africa and United States of America

2020 ◽  
Vol 12 (1(J)) ◽  
pp. 55-65
Author(s):  
Adegbemi Babatunde Onakoya ◽  
SEYINGBO, Adedotun Victor
Keyword(s):  
United States ◽  
Economic Growth ◽  
South Africa ◽  
United States Of America ◽  
Economic Restructuring ◽  
The United States ◽  
Ordinary Least Squares ◽  
The Law ◽  
The Difference ◽  
Dynamic Version

Okun’s law in its original form was predicated on the experience in the United States of America. Some methodological refinements have been added based on studies conducted in other climes with varied results. This research investigated the applicability of this law in Nigeria, South Africa and the United States of America. The study conducted a comparative analysis of three of the versions of the law. The research employed Ordinary Least Squares method having validated it’s appropriateness with Dickey-Fuller and Philips-Perron tests. The demonstrated superiority of the dynamic version over the difference version was manifest in all the countries. The result also showed that the dynamic version of the law was applicable in the three nations while the difference version showed the lack of linkage between economic growth and unemployment only in Nigeria. Deployment of employment creative employment schemes, labour market reform and economic restructuring are recommended in the Nigerian case.  The policy makers on South Africa and USA are enjoined to pursue growth- inducing policies. 

The British Actuary in the United States.

1959 ◽  
Vol 15 (05) ◽  
pp. 358-380
Author(s):  
D. H. Miles
Keyword(s):  
United States ◽  
South Africa ◽  
The United States ◽  
Text Book ◽  
Life Assurance ◽  
The Difference

This paper was intended to be a further paper in the series that has been presented to the Students' Society featuring the work of the Actuary overseas. The first was T. R. Suttie's paper, ‘The Actuary in Canada’ (J.S.S.13, 199), and subsequent papers were by D. Drybrough, ‘Life Assurance in Australia’ (J.S.S.14, 1), and by de Smidt, Williams and Rodger, ‘The Actuary in South Africa’ (J.S.S.14, 348). In view of the fact that a number of British actuaries are now working in the United States, it was thought that a further paper might deal with the position there, despite the difference that in this case actuaries do not look to the Institute and the Faculty as the seats of learning, although Spurgeon's text-book was until recently an official text-book for the Society of Actuaries.

Alexander Hamilton and the Early Republic in Edwardian Imperial Thought

2019 ◽  
Vol 12 (1) ◽  
pp. 28-50 ◽  
Author(s):  
Patrick M. Kirkwood
Keyword(s):  
United States ◽  
South Africa ◽  
Early Republic ◽  
The United States ◽  
Alexander Hamilton ◽  
George Washington ◽  
American Federation ◽  
Treaty Of Versailles ◽  
The Federalist ◽  
The Federalist Papers

In the first decade of the twentieth century, a rising generation of British colonial administrators profoundly altered British usage of American history in imperial debates. In the process, they influenced both South African history and wider British imperial thought. Prior usage of the Revolution and Early Republic in such debates focused on the United States as a cautionary tale, warning against future ‘lost colonies’. Aided by the publication of F. S. Oliver's Alexander Hamilton (1906), administrators in South Africa used the figures of Hamilton and George Washington, the Federalist Papers, and the drafting of the Constitution as an Anglo-exceptionalist model of (modern) self-government. In doing so they applied the lessons of the Early Republic to South Africa, thereby contributing to the formation of the Union of 1910. They then brought their reconception of the United States, and their belief in the need for ‘imperial federation’, back to the metropole. There they fostered growing diplomatic ties with the US while recasting British political history in-light-of the example of American federation. This process of inter-imperial exchange culminated shortly after the signing of the Treaty of Versailles when the Boer Generals Botha and Smuts were publicly presented as Washington and Hamilton reborn.

Global Power Shift

2017 ◽  
Author(s):  
Roberts Cynthia ◽  
Leslie Armijo ◽  
Saori Katada
Keyword(s):  
United States ◽  
South Africa ◽  
Data Analysis ◽  
The United States ◽  
Rising Powers ◽  
Extensive Data ◽  
Power Shift ◽  
Multiple Dimensions ◽  
Global Power ◽  
Rise Of China

This chapter evaluates multiple dimensions of the global power shift from the incumbent G5/G7 powers to the rising powers, especially the members of the BRICS (Brazil, Russia, India, China, and South Africa). Taking note of alternative conceptualizations of interstate “power,” the text maps the redistribution of economic capabilities from the G7 to the BRICS, most particularly the relative rise of China and decline of Japan, and especially Europe. Given these clear trends in measurable material capabilities, the BRICS have obtained considerable autonomy from outside pressures. Although the BRICS’ economic, financial, and monetary capabilities remain uneven, their relative positions have improved steadily. Via extensive data analysis, the chapter finds that whether one examines China alone or the BRICS as a group, BRICS members have achieved the necessary capabilities to challenge the global economic and financial leadership of the currently dominant powers, perhaps even the United States one day.

scholarly journals The Effect of Massachusetts' Health Reform on Employer-Sponsored Insurance Premiums

2010 ◽  
Vol 13 (2) ◽  
Author(s):  
John F Cogan ◽  
R. Glenn Hubbard ◽  
Daniel Kessler
Keyword(s):  
United States ◽  
Health Reform ◽  
Medical Expenditure Panel Survey ◽  
Private Insurance ◽  
The United States ◽  
Medical Expenditure ◽  
Insurance Premiums ◽  
Reform Plan ◽  
The Difference ◽  
The Cost

In this paper, we use publicly available data from the Medical Expenditure Panel Survey - Insurance Component (MEPS-IC) to investigate the effect of Massachusetts' health reform plan on employer-sponsored insurance premiums. We tabulate premium growth for private-sector employers in Massachusetts and the United States as a whole for 2004 - 2008. We estimate the effect of the plan as the difference in premium growth between Massachusetts and the United States between 2006 and 2008—that is, before versus after the plan—over and above the difference in premium growth for 2004 to 2006. We find that health reform in Massachusetts increased single-coverage employer-sponsored insurance premiums by about 6 percent, or $262. Although our research design has important limitations, it does suggest that policy makers should be concerned about the consequences of health reform for the cost of private insurance.

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