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Validity of new boulder area difficulty scaling
Hannsmann, Johan ; Baláš, Jiří (advisor) ; Chaloupský, David (referee)
Title: Validity assessment of the grading scale evaluation in a new bouldering area. Objectives: The aim of this work is to assess the grading scale validity of bouldering routes in a new area. Methods: Routes grading was verified by a group of six men and four women. The evaluation took place during one continuous visit in the rocks with an individual rest period between problems. The classification of each of the 10 ascents was conducted immediately after finishing the specific problem. It was done individually, without the possibility to consult their guesses and ideas. The proposed difficulties of the classified routes ranged from 12 to 17 IRCRA. Results: The average rating of the route difficulty classification was 0.89 IRCRA points higher than the initial suggestion, with minor differences between men and women. The influence of climbers' performance on their ability to assess routes' difficulty was statistically insignificant. Conclusion: The first climbers of boulders in the area of Goethe rock underestimate the climbing grades, which proves that the determination of difficulty in local climbing centers can be significantly skewed compared to established standards. Keywords: bouldering, grading scales, IRCRA, validity
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Processing of Incorrect XML Data
Svoboda, Martin
XML documents and related technologies represent widely accepted standard for managing and exchanging semi-structured data. However, surprisingly high number of XML documents is affected by well-formedness errors, structural invalidity or data inconsistencies. The aim of this thesis is the analysis of existing approaches resulting to the proposal of a new correction framework. The introduced model involves repairs of elements and attributes with respect to single type tree grammars. Via the inspection of the state space of an automaton recognising regular expressions, we are always able to find all minimal repairs. These repairs are compactly represented by recursively nested multigraphs, which can be translated to particular sequences of edit operations altering data trees. We have proposed four particular algorithms and provided the prototype implementation supplemented with experimental results. The most efficient algorithm heuristically follows only perspective repair directions and avoids repeated computations using the caching mechanism.
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Integrity measure - test of answers' consistency
Salzerová, Aneta ; Preiss, Marek (advisor) ; Lukavská, Kateřina (referee)
The thesis addresses response consistency in questionaries, the concept of integrity and use of integrity tests. Next chapter deals with consistency and describes possible sources of response variability and scales which is used for consistency measurement. The third chapter addresses response distortion and methods of its measurement. Last part describes cognitive functions which could affect answering a questionary and introduces a relation between psychopathological symptoms and questionary responses. The empirical part of the thesis studies response consistency in each category and relation between integrity test in work environment, consistency and demographic data of respondents. Difference between a number of identical answers about social desirability and about neutral information showed statistical significance. Therefore, hypotheses about the highest consistency in neutral information was supported. The thesis also revealed that a higher score in interference relates to a higher score of consistency. Finally, two correlations were found out. First was a positive correlation between integrity and number of years respondents have worked, second was a negative correlation between interference and age. Keywords: integrity, social desirability, consistency, validity, counterproductive behaviour
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Mutual comparison of fitness test results and floorball skills tests among Czech talented youth and youth from the Vysočina Region
Kovář, Jakub ; Dragounová, Zuzana (advisor) ; Tůma, Martin (referee)
Title: Mutual comparison of results of fitness tests and tests of floorball skills among talented Czech youth and youth from the Vysočina Region. Objectives: The main aim of the Master's thesis is to evaluate the level of player skills and fitness skills among regional youth teams and youth from the Vysočina Region. For the comparison, the categories of younger and older male and female pupils, and junior men and women were selected. Methods: For the purposes of this Master's thesis, the method of quantitative research of the categories of younger and older male and female pupils, and junior men and women in floorball from the Vysočina Region was applied. The floorball test battery of the Czech Floorball, consisting of fourteen player tests focused on floorball skills and fitness skills, of which seven scientifically standardized tests were selected, was used for testing. For the determination of validity, an expert analysis was used, a repeated measurement (test - retest) was performed to determine the reliability of the tests, and the Fleiss' Kappa value was calculated to determine the evaluators' concordance. Results: The results of the paper, based on the comparison of the data of the club from the Vysočina Region, and the regional teams' data, showed that girls (junior women and older female...
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Health and Its Socioeconomic Indicators - Reliability and Validity Testing of Scales
Juráčková, Veronika ; Remr, Jiří (advisor) ; Hendl, Jan (referee)
The diploma thesis "Health and Socio-economic Indicators - reliability and validity testing of the PSAS" deals with a theoretical concept of health and its socio-economic indicators. A substantial part of the work concentrates on the application of PSAS tools to the Czech population and determining whether the range is reliable and valid for Czech respondents. To determine the reliability, a complex test is used for the whole range through the value of Cronbach's Alpha, and then the Item Response Theory (IRT) is also tested. The IRT test is done using the 18-point Likert's range of responses, of which is the PSAS composed. The validity is tested based on confirmatory factor analysis, using the construct validity as well as analysis of cognitive interviews for face validity. The secondary data analysis is done in SPSS, MPLUS, R, and IRTPRO programs. The last two programs are used to test the lesser known Item Response Theory.
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The Reliability of Measuring on the Skytec Interactive Ski Simulator
Novotný, Otomar ; Jindra, Matouš (advisor) ; Fořterová, Petra (referee)
Title: The Reliability of Measuring on the Skytech Interactive Ski Simulator Objectiv: The goal of this work is to investigate the reliability of the measurement of energy expenditure on the Skytech Interactive Ski Simulator. Methods: The sample consisted of 14 subjects, among which were 9 boys and 5 girls. The value of energy expenditure was measured by indirect calorimetry using the energy equivalent and respiratory exchange ratio. For the measurement of respiratory gases, the Metamax 3B metabolic analyzer and for the analysis of heart rate, the Polar S610 heart rate monitor were used. The subjects completed two measurements, each lasting 6 minutes. During this time, the data needed for subsequent calculations reliability were measured. Assuming that the pair of measuring has a two-dimensional distribution, the reliability equals the correlation coefficient. It was computed using the maximum likelihood method. Results: The measurement of energy expenditure on the Skytec Interactive Simulator provided consistent and reliable results. The findings in this study can be applied to further testing on this machine. Conclusion: The reliability of energy expenditure reached 0,84, a result better than the usual values of reliability tests, which may typically be about 0,8. Keywords: Energy expenditure,...
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The Reliability of Measuring on the Skytech Interactive Ski Simulator
Novotný, Otomar ; Jindra, Matouš (advisor) ; Matošková, Petra (referee)
Title: The Reliability of Measuring on the Skytech Interactive Ski Simulator Objectiv: The goal of this work is to investigate the reliability of the measurement of energy expenditure on the Skytech Interactive Ski Simulator. Methods: The sample consisted of 14 subjects, among which were 9 boys and 5 girls. The value of energy expenditure was measured by indirect calorimetry using the energy equivalent and respiratory exchange ratio. For the measurement of respiratory gases, the Metamax 3B metabolic analyzer and for the analysis of heart rate, the Polar S610 heart rate monitor were used. The subjects completed two measurements, each lasting 6 minutes. During this time, the data needed for subsequent calculations reliability were measured. Assuming that the pair of measuring has a two-dimensional distribution, the reliability equals the correlation coefficient. It was computed using the maximum likelihood method. Results: The measurement of energy expenditure on the Skytec Interactive Simulator provided consistent and reliable results. The findings in this study can be applied to further testing on this machine. Conclusion: The reliability of energy expenditure reached 84%, a result better than the usual values of reliability tests, which may typically be about 80%. Keywords: Energy expenditure,...
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Analytical methods for measurement error estimation in survey data
Chylíková, Johana ; Vinopal, Jiří (advisor) ; Kreidl, Martin (referee) ; Buriánek, Jiří (referee)
Analytical methods for measurement error estimation in survey data This dissertation aims at the domain of measurement error in social science survey data. To conceptualize and estimate measurement errors it employs the analytical and theoretical framework that stems from the analytical method of structural equation modeling (SEM) and Classical Test Theory (CTT), extended with the component of the systematic measurement error. This thesis has two goals that may contribute to development and extension of Czech social science methodology. The first goal is to illustrate methods of measurement error estimation, which has not been used for analysis of Czech data yet, and to point out to some problematical aspects of these methods. The second goal is to employ presented methods to obtain new findings regarding the quality of data from Czech surveys. The dissertation presents three empirical studies, each of which uses one of the methods defined within the presented theoretical and analytical framework. First study presents an analysis of reliability of measurement with the Quasi Simplex Model (QSM). It illustrates how to use the model and brings optimistic results regarding the reliability of the Czech EU SILC panel data. In the second study the confirmatory factor analysis model, operationally called...
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Assessment Centre Method Validation - Approaches and Options
Fousková, Petra ; Rymeš, Milan (advisor) ; Záškodná, Helena (referee)
The subject of this thesis is a validation of an assessment centre for employee selection, e.g. examining the validity of this method. Currently, the assessment centre represents an often used method of employee selection. At the same time, however, its implementation is demanding from the financial, time and personal perspective. If the assessment centre shall be considered an effective employee selection method, it is essential to pay attention to its psychometric aspects, especially the validity of its findings. First, the terms "assessment centre" and "validity" are defined and explained. Then, the thesis presents approaches and options of validation of the selection assessment centre based on scientific literature, articles and researches. Key Words assessment centre, employee selection, validation, validity
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