‎In this paper Lie point symmetries‎, ‎Hamiltonian equations and conservation‎ ‎laws of general three-dimensional anisotropic non-linear sourceless heat transfer‎ ‎equation are investigated‎. ‎First of all Lie symmetries are obtained by using the general method‎ based on invariance condition of a system of differential equations under a pro‎longed vector field‎. ‎Then the structure of symmetry ...

This investigation extends the factor analytic approach pioneered by Fleishman (1964) by incorporating subsequent developments in the application of confirmatory factor analysis and the physical fitness literature. Specifically, it tests the ability of an a priori factor structure of physical fitness to fit (i.e., account for) data based on 25 indicators of fitness (field exercises, technical m...

Carver and White's (1994) Behavioral Inhibition System/Behavioral Activation System (BIS/BAS) Scales have been useful tools for studying individual differences in reward-punishment sensitivity; however, their factor structure and invariance across development have not been well tested. In the current study, we examined the factor structure of the BIS/BAS Scales across 5 age groups: 6- to 10-yea...

Studies into the effects of stereotype threat (ST) on test performance have shed new light on race and sex differences in achievement and intelligence test scores. This article relates ST theory to the psychometric concept of measurement invariance, and shows that ST effects may be viewed as a source of measurement bias. As such, ST effects are detectable by means of multi-group confirmatory fa...

The general purpose of this study is to validate the Turkish version short form Self- Compassion Scale (SCS) by Ant Colony Optimization (ACO). For purpose, data were collected from two different samples. Sample-1 (n = 398) and Sample-2 233) consist young middle-aged adults. Short forms created selecting most suitable items for unidimensional, two-factor correlated, six-factor higher-order, bifa...

The aim of this study was to validate the French version Career Decision-Making Difficulties Questionnaire (CDDQ) and assess its measurement invariance across gender, age groups, countries, student versus career counseling samples. We also examined sensitivity instrument discriminate a population from general sample. Third, we studied relationship between decision-making difficulties, self-effi...

Abstract Objective ImPACT is commonly used for sport-concussion management. Baseline and post-concussion tests serve as within-athlete comparisons return-to-play decision-making. Previous literature has questioned whether ImPACT’s five composites accurately represent the internal structure of its cognitive scores. A recent alternative four-factor strong confirmatory evidence baseline scores (Ma...

The General Certificateof Secondary Education (GCSE) in mathematics is designed to measure not only the mathematical knowledge of candidates, but also their ability to use mathematicsas a mode of inquiry. A number of British Awarding Bodies with large candidatures now offer GCSE Mathematics Syllabus B as an alternative to Syllabus A. The two assessment frameworks are identical except in their a...

Rudolf R. Sinkovics (Ph.D., Vienna University of Economics and Business Administration) is a lecturer, University of Manchester, Manchester Business School, United Kingdom. ABSTRACT: This paper offers a new methodological framework to guide researchers attempting to quantitatively assess how a pluralistic audience perceives a standardized television advertisement. Rasch (1960) measurement theor...

This paper emphasises the importance of assessing measurement equivalence when using cross-national and longitudinal surveys. We illustrate how to test for measurement equivalence using multi-group confirmatory factor analysis (MGCFA) and clarify under what conditions both meaningful comparisons of construct means and relationships between constructs are possible. Using data from the Internatio...