scholarly journals Psychometric Data Analysis: A Size/fit Trade-off Evaluation Procedure for Knowledge Structures

2021 ◽  
Vol 6 (4) ◽  
pp. 491-514
Author(s):  
Ali Unl¨u ◽  
Waqas Ahmed Malik
Keyword(s):  
Data Analysis ◽  
Knowledge Structures ◽  
Evaluation Procedure ◽  
Trade Off ◽  
Psychometric Data

scholarly journals Análisis de las propiedades psicométricas del Athlete Burnout Questionnaire (ABQ) en deportistas mexicanos

2019 ◽  
Vol 35 (2) ◽  
pp. 314-322
Author(s):  
Julio R. Martínez-Alvarado ◽  
Félix Guillén ◽  
Luis H. Aguiar-Palacios ◽  
Ana G. Magallanes ◽  
Pedro Fernández-Ruíz ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Data Analysis ◽  
Discriminant Validity ◽  
Sufficient Evidence ◽  
Fit Indices ◽  
Young Athletes ◽  
Psychometric Data ◽  
Athlete Burnout ◽  
Confirmatory Factor ◽  
Three Factor

El Athlete Burnout Questionnaire (ABQ) se ha convertido en el instrumento más utilizado para evaluar el burnout en el contexto deportivo, lo que ha permitido un incremento significativo en las investigaciones. A pesar de ello, una revisión en la literatura revela que no existen trabajos que proporcionen datos psicométricos del ABQ con muestra mexicana, por lo que el objetivo de la presente investigación fue analizar las propiedades psicométricas del Athlete Burnout Questionnaire en deportistas mexicanos. El análisis de los datos se desarrolló a través de 2 estudios, aplicando el cuestionario en el primero de ellos a una muestra de 464 jóvenes deportistas entre 13 y 18 años de edad (M = 14.85, DT = 1.45). Los resultados del Análisis Factorial Confirmatorio (AFC) indicaron índices de ajuste aceptables (c2 = 176.7; c2 /gl = 2.18; p < .01; TLI = .93, IFI = .95, CFI = .95 y RMSEA = .05) así como pesos de regresión aceptables para la estructura trifactorial del cuestionario original. Para el segundo estudio se utilizó una muestra de 1009 deportistas mexicanos entre 12 y 39 años de edad (M = 17.28, DT = 2.98). Los resultados del AFC encontraron suficiente evidencia para la validez de constructo (c2 = 419.5; c2 /gl = 5.59; p < .01; TLI = .94, IFI = .96, CFI = .96 y RMSEA = .07). Los resultados en el análisis de correlación entre el Athlete Burnout Questionnaire (ABQ) y el Athlete Engagement Questionnaire (AEQ) pueden considerarse como prueba favorable de la validez discriminante. En cuanto a la fiabilidad, se encontraron resultados aceptables en consistencia interna en ambas fases del estudio, concluyendo que el ABQ es una herramienta útil para evaluar el burnout en depotistas mexicanos. The Athlete Burnout Questionnaire (ABQ) has become one of the most used tools to assess burnout in sport contexts. Despite a significant increase in research in this field, the literature has shown that there are no papers which provide psychometric data of the ABQ using a Mexican sample. Hence the objective of the present study was to analyze the psychometric properties of the Athlete Burnout Questionnaire of Mexican athletes. Data analysis was obtained using two studies. The first study consisted of 464 young athletes between 13 and 18 years old (M = 14.85, DT = 1.45). The results of the Confirmatory Factor Analysis (CFA) showed acceptable fit indices (c2 = 176.7; c2 /gl = 2.18; p < .01; TLI = .93, IFI = .95, CFI = .95 y RMSEA = .05) Acceptable results of load regression were also found for the original three factor questionnaire. A sample of 1009 Mexican athletes between 12 and 39 years of age (M = 17.28, SD = 2.98) were used for the second study. The results of the CFA found sufficient evidence for the construct validity (c2 = 419.5; 2cc2 /gl = 5.59; p < .01; TLI = .94, IFIS = .96, CFI = .96 and RMSEA = .07). The results in the analysis of correlation between the Athlete Burnout Questionnaire (ABQ) and the Athlete Engagement questionnaire (AEQ) can be considered as evidence of the discriminant validity. In regard to reliability, acceptable results were observed in internal consistency in both phases of the study, concluding that the ABQ is a useful tool to evaluate the burnout in Mexican athletes.

scholarly journals Not All Attributes are Created Equal: dX -Private Mechanisms for Linear Queries

2020 ◽  
Vol 2020 (1) ◽  
pp. 103-125
Author(s):  
Parameswaran Kamalaruban ◽  
Victor Perrier ◽  
Hassan Jameel Asghar ◽  
Mohamed Ali Kaafar
Keyword(s):  
Machine Learning ◽  
Data Analysis ◽  
Differential Privacy ◽  
Learning Algorithms ◽  
Machine Learning Algorithms ◽  
Trade Off ◽  
Systematic Procedure ◽  
Privacy Budget ◽  
Sensitivity Vector

AbstractDifferential privacy provides strong privacy guarantees simultaneously enabling useful insights from sensitive datasets. However, it provides the same level of protection for all elements (individuals and attributes) in the data. There are practical scenarios where some data attributes need more/less protection than others. In this paper, we consider dX -privacy, an instantiation of the privacy notion introduced in [6], which allows this flexibility by specifying a separate privacy budget for each pair of elements in the data domain. We describe a systematic procedure to tailor any existing differentially private mechanism that assumes a query set and a sensitivity vector as input into its dX -private variant, specifically focusing on linear queries. Our proposed meta procedure has broad applications as linear queries form the basis of a range of data analysis and machine learning algorithms, and the ability to define a more flexible privacy budget across the data domain results in improved privacy/utility tradeoff in these applications. We propose several dX -private mechanisms, and provide theoretical guarantees on the trade-off between utility and privacy. We also experimentally demonstrate the effectiveness of our procedure, by evaluating our proposed dX -private Laplace mechanism on both synthetic and real datasets using a set of randomly generated linear queries.

scholarly journals Optimasi Biaya dan Waktu Proyek Konstruksi dengan Lembur dan Penambahan Tenaga Kerja

2021 ◽  
Vol 17 (1) ◽  
pp. 35-46
Author(s):  
Dinda Fardila ◽  
Nuur Robbyatul Adawyah
Keyword(s):  
Data Analysis ◽  
Cost Efficiency ◽  
Time Cost ◽  
Optimum Time ◽  
Time Efficiency ◽  
Project Cost ◽  
Trade Off ◽  
The Cost ◽  
Total Project Cost ◽  
Total Project

ABSTRACT                                                                         In the construction of a construction project, there are three main elements: time efficiency, minimal costs, and appropriate quality. This study aims to calculate changes in the cost and time of project implementation with variations in overtime and additional workforce. Data analysis using Microsoft Project 2010 program and Time-Cost Trade-Off method. The results of this study indicate that (1) the optimum time and costs due to overtime are obtained at the project age of 235 working days with a total project cost of IDR 8,438,038,832 with a project time efficiency of 5 days (2.13%) and a project cost efficiency of IDR 3.559,695 (0.042%). (2) The optimum time and cost due to the addition of labor is the best choice with the results obtained at the project age of 226 working days with a total project cost of IDR 8,429,832,759 with a project time efficiency of 14 days (6.19%) and cost-efficiency. project amounting to Rp. 11,779,674 (0.14%). ABSTRAKDalam pelaksanaan pembangunan suatu proyek konstruksi, terdapat tiga unsur utama yaitu waktu yang efisien, biaya minimal dan mutu yang sesuai. Tujuan dari penelitian ini adalah menghitung perubahan biaya dan waktu pelaksanaan proyek dengan variasi lembur dan penambahan tenaga kerja. Analisis data menggunakan program Microsoft Project 2010 dan metode Time Cost Trade Off. Hasil penelitian ini menunjukkan bahwa (1) Waktu dan biaya optimum akibat lembur didapat pada umur proyek 235 hari kerja dengan total biaya proyek sebesar Rp8.438.038.832 dengan efisiensi waktu proyek sebanyak 5 hari (2,13%) dan efisiensi biaya proyek sebesar Rp3.559.695 (0,042%). (2) Waktu dan biaya optimum akibat penambahan tenaga kerja menjadi pilihan terbaik dengan hasil yang didapat pada umur proyek 226 hari kerja dengan total biaya proyek sebesar Rp8.429.832.759 dengan efisiensi waktu proyek sebanyak 14 hari (6,19%) dan efisiensi biaya proyek sebesar Rp11.779.674 (0,14%).

scholarly journals Optimization of Value Measurement Methods

2019 ◽  
Author(s):  
Kabir Bindawa Abdullahi
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Methodological Approach ◽  
Measurement Methods ◽  
Data Presentation ◽  
Psychometric Data ◽  
Methodological Problems ◽  
Value Measurement

This paper addresses the issues of methodological problems and limitations regarding measuring values. A short scan review of values measurement methods from psychological and ethnobotanical approaches was made to enumerate some of those shortcomings. A new methodological approach, named Kab&rsquo;s Value Survey (KVS) was proposed and compared with other well adopted methods based on some important criteria to assess its suitability, uniqueness and novelty. The results of the comparisons shows that KVS for its considerations to the theoretical explanations distinguishes itself over other methods of value measurement in the sense that the methodological approach employed is more broad in scope and applications, simple, specific and reliable in terms of instruments for data collection, psychometric data analysis, and of course data presentation. The method however solved some of the criticized limitations that exist in other well adopted methods of values measurement from psychological and ethnobotanical perspectives.

scholarly journals Topological Data Analysis of C. elegans Locomotion and Behavior

2021 ◽  
Vol 4 ◽  
Author(s):  
Ashleigh Thomas ◽  
Kathleen Bates ◽  
Alex Elchesen ◽  
Iryna Hartsock ◽  
Hang Lu ◽  
...  
Keyword(s):  
Data Analysis ◽  
Persistent Homology ◽  
Model Organism ◽  
Topological Data Analysis ◽  
Trade Off ◽  
High Throughput Data ◽  
C Elegans ◽  
Novel Technique ◽  
And Behavior ◽  
Topological Data

We apply topological data analysis to the behavior of C. elegans, a widely studied model organism in biology. In particular, we use topology to produce a quantitative summary of complex behavior which may be applied to high-throughput data. Our methods allow us to distinguish and classify videos from various environmental conditions and we analyze the trade-off between accuracy and interpretability. Furthermore, we present a novel technique for visualizing the outputs of our analysis in terms of the input. Specifically, we use representative cycles of persistent homology to produce synthetic videos of stereotypical behaviors.

Non-Mutually Exclusive Trade-off and Pecking Order Theories: A Study in Indonesia

2021 ◽  
Vol 12 (1) ◽  
pp. 71-87
Author(s):  
Wihandaru Sotya Pamungkas ◽  
Arni Surwanti
Keyword(s):  
Data Analysis ◽  
Capital Structure ◽  
Empirical Evidence ◽  
Policy Implication ◽  
Research Finding ◽  
Financial Sector ◽  
Manufacturing Companies ◽  
Pecking Order ◽  
Trade Off ◽  
Subsequent Research

Research aim: This study aimed to strengthen empirical evidence that the trade-off (TOT) and pecking order (POT) theories in Indonesia are non-mutually exclusive.Design/methodology/approach: This study employed a sample of 636 manufacturing companies from 2014 to 2018.Research finding: The results revealed that companies in Indonesia used a Capital Structure consistent (CS) with the TOT and POT, or in other words, the TOT and POT theories are non-mutually exclusive.Theoretical contribution/originality: This study is different from previous research on data analysis strengthened by separating underleveraged and overleveraged companies.Practitioner/Policy implication: CS in Indonesia is following the TOT if it is underleveraged and according to POT if it is overleveraged.Research limitation/implication: This study has the limitation of only using a sample of manufacturing companies in Indonesia. Subsequent research can provide comprehensive results by increasing the sample of all companies excludes the financial sector.

scholarly journals Optimization of Value Measurement Methods

2019 ◽  
Author(s):  
Kabir Abdullahi
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Methodological Approach ◽  
Measurement Methods ◽  
Data Presentation ◽  
Psychometric Data ◽  
Methodological Problems ◽  
Value Measurement

This paper addresses the issues of methodological problems and limitations regarding measuring values. A short scan review of values measurement methods from psychological and ethnobotanical approaches was made to enumerate some of those shortcomings. A new methodological approach, named Kab&rsquo;s Value Survey (KVS) was proposed and compared with other well adopted methods based on some important criteria to assess its suitability, uniqueness and novelty. The results of the comparisons shows that KVS for its considerations to the theoretical explanations distinguishes itself over other methods of value measurement in the sense that the methodological approach employed is more broad in scope and applications, simple, specific and reliable in terms of instruments for data collection, psychometric data analysis, and of course data presentation. The method however solved some of the criticized limitations that exist in other well adopted methods of values measurement from psychological and ethnobotanical perspectives.

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