scholarly journals The Social Profile of Students in Basic General Education in Ecuador: A Data Analysis

2017 ◽  
Vol 10 (6) ◽  
pp. 51
Author(s):  
Olga Elizabeth Minchala Buri ◽  
Efstathios Stefos
Keyword(s):  
Cluster Analysis ◽  
Data Analysis ◽  
Statistical Analysis ◽  
General Education ◽  
National Survey ◽  
Hierarchical Cluster Analysis ◽  
Descriptive Analysis ◽  
Hierarchical Cluster ◽  
Factorial Analysis ◽  
The Social

The objective of this study is to examine the social profile of students who are enrolled in Basic General Education in Ecuador. Both a descriptive and multidimensional statistical analysis was carried out based on the data provided by the National Survey of Employment, Unemployment and Underemployment in 2015. The descriptive analysis shows the frequency and percentages of variables used in the investigation, and the multidimensional statistical analysis demonstrates the principal and more important criteria of differentiation and classification among the clusters of students who were investigated. These methods involve factorial analysis of multiple correspondences which demonstrate criteria of differentiation and a hierarchical cluster analysis to define clusters of students according to their common traits.

scholarly journals The Educational and Social Profile of the Indigenous People of Ecuador: A Multidimensional Analysis

2017 ◽  
Vol 9 (1) ◽  
pp. 137 ◽  
Author(s):  
José Manuel Castellano ◽  
Efstathios Stefos ◽  
Lisa Gaye Williams Goodrich
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Indigenous People ◽  
Hierarchical Cluster Analysis ◽  
Educational Level ◽  
Descriptive Analysis ◽  
Hierarchical Cluster ◽  
Population Based ◽  
Multidimensional Analysis ◽  
The Social

The objective of the study is to examine the educational level and the social profile of the indigenous people of Ecuador by means of a descriptive and multidimensional statistical analysis of this sector of the Ecuadorian population, based on data from the National Survey of Employment, Unemployment and Underemployment from 2015. The descriptive analysis shows the frequency and percentages of the variables used in the investigation, while the multidimensional statistical analysis is used in order to show the principal and most important criteria of differentiation and classification among the groups of people investigated. These methods involve a factorial analysis of multiple correspondences which demostrates the criteria of differentiation and a hierarchical cluster analysis to define groups of people according to their common traits.

scholarly journals The Ecuadorian Amazon: A Data Analysis of Social and Educational Characteristics of the Population

2017 ◽  
Vol 9 (1) ◽  
pp. 120 ◽  
Author(s):  
Gina Valdivieso ◽  
Efstathios Stefos ◽  
Ruth Lalama
Keyword(s):  
Data Analysis ◽  
Statistical Analysis ◽  
Marital Status ◽  
National Survey ◽  
Factorial Analysis ◽  
Place Of Birth ◽  
The Social ◽  
Ecuadorian Amazon ◽  
Level Of Instruction ◽  
Descriptive Statistical Analysis

The present study describes the social and educational characteristics of the Ecuadorian Amazon population. For this purpose, the data obtained from the National Survey of Employment, Unemployment and Underemployment of 2014 was used in this research. A descriptive statistical analysis presents the frequency, the percentages and the graphs of the variables related to the area in which people live, gender, age, ethnic self-identification, language spoken, marital status and level of instruction. Other variables are the use of computer and internet, place of birth, reason why they live in the Amazon region, type of activity or inactivity, how do they feel in their jobs, and groups of occupation. Also, a factorial analysis was used to show the main and most important criteria of differentiation and the the clusters of people with similar characteristics.

scholarly journals The Social Characteristics of Postgraduate Students in Ecuador: A Multidimensional Statistical Analysis

2017 ◽  
Vol 9 (2) ◽  
pp. 35
Author(s):  
Andrés Bonilla Marchán ◽  
Ramiro Delgado ◽  
Efstathios Stefos
Keyword(s):  
Statistical Analysis ◽  
Hierarchical Clustering ◽  
National Survey ◽  
Descriptive Analysis ◽  
Factorial Analysis ◽  
Social Characteristics ◽  
Postgraduate Students ◽  
The Social

The purpose of this study is to investigate social characteristics of postgraduate students in Ecuador. The study was conducted with the use of a descriptive and multidimensional statistical analysis, and data from the National Survey of Employment, Unemployment and Underemployment corresponding to 2015. The descriptive analysis has shown the frequencies and percentages of the variables of the research. The multidimensional statistical analysis was used in order to show the main and most important criteria of differentiation and the classification in clusters of people being studied. The methods used are the factorial analysis of multiple correspondences that presents the criteria of differentiation and the hierarchical clustering that defines the groups of people due to their common characteristics.

scholarly journals Maladaptive use of ICT in adolescence: Profiles, supervision and technological stress

Comunicar ◽  
2020 ◽  
Vol 28 (64) ◽  
pp. 29-38 ◽  
Author(s):  
Adoración Díaz-López ◽  
Javier-Jerónimo Maquilón-Sánchez ◽  
Ana-Belén Mirete-Ruiz
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Descriptive Analysis ◽  
Hierarchical Cluster ◽  
The Internet ◽  
Chi Square ◽  
Ict Use ◽  
Significant Relationships ◽  
The Relationship ◽  
Technological Stress

ICT use during adolescence is now commonplace. Its power of attraction and the vulnerable condition of adolescents are giving rise to growing concern, aggravated by the imminent consequences of such synergy. In order to deepen understanding of this relationship, the following research objectives were formulated: a) Analyze the frequency of ICT use; b) Examine family supervision; c) Identify stress associated with the use of ICTs; d) Establish profiles of ICT use. The sample consisted of 1,101 adolescents of 10 educational centers in Southeastern Spain. A descriptive analysis was performed and contingency tables, Chi Square, Cramer V, hierarchical cluster analysis and one-factor ANOVA were used. The results show that more than 60% of adolescents use ICTs without supervision and that 1 out of 3 feel stressed in the absence of the Internet. In addition, statistically significant relationships were found between the frequency of ICT use and stress, as well as with family supervision. A solution of three groups or profiles of use was obtained. 45% of the subjects display maladaptive use or signs of it. The study concludes by stressing that the relationship between adolescents and ICTs is far from ideal and warns of the urgent need to train adolescents and parents in the responsible use of ICTs. El uso de las TIC durante la adolescencia es un hecho normalizado en la actualidad. Su poder de atracción y la condición de vulnerabilidad de los púberes están suscitando una creciente preocupación, agravada por las consecuencias inminentes de tal sinergia. Con la finalidad de profundizar en esta relación, se formulan los siguientes objetivos de investigación: a) Analizar la frecuencia de uso de las TIC; b) Examinar la supervisión familiar; c) Identificar estrés asociado al uso de las TIC; d) Establecer perfiles de uso de las TIC. La muestra estuvo compuesta por 1.101 adolescentes de 10 centros educativos del Sureste Español. Se realizó un análisis descriptivo y se emplearon tablas de contingencia, Chi Cuadrado, V de Cramer, análisis de clúster jerárquico y ANOVA de un factor. Los resultados arrojan que más del 60% de los adolescentes usa las TIC sin supervisión y que uno de cada tres se siente estresado ante la ausencia de Internet. Además, se encontraron relaciones estadísticamente significativas entre la frecuencia de uso de las TIC y el estrés, así como con la supervisión familiar. Se obtuvo una solución de tres grupos o perfiles de uso. El 45% de los sujetos tiene un uso desadaptado o indicios del mismo. Se concluye subrayando que la relación entre adolescentes y TIC dista mucho de la deseada y se alerta de la imperiosa necesidad de formar a adolescentes y a progenitores en el uso responsable de las TIC.

scholarly journals Numerals in authorial Turkish-language texts and the stylometric analysis

2021 ◽  
Vol 270 ◽  
pp. 01038
Author(s):  
Andrei Zenkov ◽  
Eugene Zenkov ◽  
Miroslav Zenkov ◽  
Larisa Sazanova
Keyword(s):  
Cluster Analysis ◽  
Discourse Analysis ◽  
Statistical Analysis ◽  
Frequency Distribution ◽  
Computer Analysis ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Literary Texts ◽  
Frequency Distributions ◽  
Turkish Language

Two approaches to the statistical analysis of texts are suggested, both based on the study of numerals occurrence in coherent texts. The first approach is related to the study of the frequency distribution of various leading digits of numerals occurring in the text. These frequencies are unequal: the digit 1 is strongly dominating; usually, the incidence of subsequent digits is monotonically decreasing. The frequencies of occurrence of the digit 1, as well as, to a lesser extent, the digits 2 and 3, are usually a characteristic author’s style feature, manifested in all (sufficiently long) texts of any author. This approach is convenient for testing whether a group of texts has common authorship: the latter is dubious if the frequency distributions are sufficiently different. The second approach is the extension of the first one and requires the study of the frequency distribution of numerals themselves (not their leading digits). The approach yields non-trivial information about the author, stylistic and genre peculiarities of the texts and is suited for the advanced discourse analysis. This paper deals with the application of the second approach to the literary texts in Turkish. We have analysed almost the whole corpus of works by are illustrated by examples of computer analysis of the literary texts by O. Pamuk and Y. Kemal – two of Turkey’s most prominent novelists. The hierarchical cluster analysis based on the occurrence of numerals in the texts by Pamuk and Kemal shows the author, genre, and chronology differences of numerals usage in the literary texts of these authors.

A corpus-based analysis of the verb pleróo in Ancient Greek

2017 ◽  
Vol 15 (1) ◽  
pp. 253-287 ◽  
Author(s):  
Georgios Ioannou
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Hierarchical Cluster Analysis ◽  
Multiple Correspondence Analysis ◽  
Hierarchical Cluster ◽  
Semantic Features ◽  
Ancient Greek ◽  
Image Schemas ◽  
Inductive Methods ◽  
Image Schema

Abstract This is a corpus-based study of the development of the verb pleróo in Ancient Greek, originally meaning fill, from the 6th c. bce in Classical Greek, up to the end of the 3rd c. bce in Hellenistic Koiné. It implements a hierarchical cluster analysis and a multiple correspondence analysis of the sum of the attested instances of pleróo of that period, divided by century. It explores the gains following a syncretism between two methodological strands: earlier introspective analyses postulating variant construals over intuitively grasped schematic configurations such as image schemas, and strictly inductive methods based on statistical analyses of correlations between co-occurring formal and semantic features. Thus, it examines the relevance of the container image-schema to the architecture of the schematic construction corresponding to the prototypical and historically preceding sense of pleróo, fill. Consequently, it observes how shifts in the featural configurations detected through statistical analysis, leading to the emergence of new senses, correspond to successive shifts on the perspectival salience of elements in the schematic construction of the verb.

scholarly journals A Multidimensional Statistical Analysis of Artisans and Unskilled Workers of Ecuador

2017 ◽  
Vol 9 (2) ◽  
pp. 237 ◽  
Author(s):  
Andrés Bonilla Marchán ◽  
Ramiro Delgado ◽  
Efstathios Stefos
Keyword(s):  
Statistical Analysis ◽  
National Survey ◽  
Factorial Analysis ◽  
Social Characteristics ◽  
Hierarchical Analysis ◽  
Self Employment ◽  
The Social ◽  
Unskilled Workers ◽  
Descriptive Statistical Analysis

The objective of this study is to highlight the social characteristics of the unskilled workers and artisans of Ecuador through a descriptive and multidimensional statistical analysis of data from the 2015 National Survey of Employment, Unemployment and Self-employment. The descriptive statistical analysis demonstrates the frequencies and percentages of the variables of the investigation while the multidimensional statistical analysis shows the principal criteria of differentiation and classification between the groups of people surveyed. The methods involved a factorial analysis of multiple correspondences indicating the criteria of differentiation, and a statistical hierarchical analysis, which attempts to define the subjects surveyed according to their common traits.

Statistical Analysis of Parieto-Frontal Cognitive-Motor Networks

2009 ◽  
Vol 102 (3) ◽  
pp. 1911-1920 ◽  
Author(s):  
Bruno B. Averbeck ◽  
Alexandra Battaglia-Mayer ◽  
Carla Guglielmo ◽  
Roberto Caminiti
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Anatomical Connectivity ◽  
Statistical Structure ◽  
Cortical Areas ◽  
Prefrontal Cortical ◽  
Primate Brain ◽  
Statistical Regularities

Considerable information has been gathered on the anatomical connectivity within the parieto-frontal network of the primate brain. To examine the statistical regularities in this connectivity, we carried out hierarchical cluster analysis and found statistically significant clusters of areas: four in the parietal and six in the frontal lobe. Clusters were based on patterns of inputs from all cortical areas. Both parietal and frontal clusters were composed of sets of spatially contiguous architectonic areas. The four parietal clusters were composed of sets of anterior (somatosensory), dorsal, inferior, and medio-lateral parietal cortical areas. The six frontal clusters were composed of sets of dorsal premotor, ventral premotor, primary motor, cingulate motor, and dorsal and ventral prefrontal cortical areas. Furthermore, connectivity between frontal and parietal clusters was topographic and reciprocal. Thus we found substantial statistical structure and organization in the parieto-frontal network that gives a simplified but accurate description of this system.

Situating Valency Theory in functional-cognitive space

2018 ◽  
Vol 16 (2) ◽  
pp. 348-398
Author(s):  
Francisco Gonzálvez-García ◽  
Christopher S. Butler
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Multidimensional Scaling ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Negative Evaluation ◽  
Questionnaire Item ◽  
Broad Group ◽  
Cognitive Space ◽  
German Syntax

Abstract This article builds on the work reported in Butler and Gonzálvez-García (2014), in which 16 functional and/or cognitive/constructionist theories were compared on the basis of questionnaires completed by experts and a reading of the literature on each approach. The aim is to extend this work to cover Valency Theory (VT henceforth), arguably the most widely used approach to the study of German syntax. We first report on a statistical analysis (correlation, multidimensional scaling and hierarchical cluster analysis) of the data from the questionnaires completed by two VT experts, in relation to those completed by experts in other approaches. We then present an analysis of each item in the questionnaire in relation to VT, leading to a positive or negative evaluation for each questionnaire item. The results are again analysed statistically. The picture that emerges is of a theory which, though distinctive, has clear relationships with a broad group of cognitively-oriented approaches.

scholarly journals Çok Değişkenli İstatistiksel Analizler ile Akkaya Gölü Rezervuar Topraklarındaki Ağır Metallerin Veri Analizi

2021 ◽  
Vol 9 (1) ◽  
pp. 249-257
Author(s):  
Fusun Yalçın
Keyword(s):  
Heavy Metals ◽  
Cluster Analysis ◽  
Factor Analysis ◽  
Data Analysis ◽  
Statistical Analysis ◽  
Hierarchical Cluster ◽  
Multivariate Statistical ◽  
High Positive Correlation ◽  
Agricultural Areas ◽  
Chemical Contents

Data analysis is important in determining the origin of heavy metals accumulated in reservoir areas of lakes built for irrigation and understanding their toxic effects around agricultural areas. The aim of the study is to determine the behaviors of the heavy metals detected, the relationships among them, and to explain the possible origin of these metals by using multivariate statistical analyzes in the chemical contents of the soils in the Akkaya Lake reservoir area. The abundance of chemical analysis contents is listed as Mg> Al> Fe> S> Ti> Zn> V> As> Cu> Ni> Pb> Co> Mo> Sn> Cd> Hg. There is a high positive correlation between Fe and Mg, Si, K, Co, V, Cu, As, Ni, Zn and Pb. According to factor analysis, the total variance is 72.080 (% cumulative), divided into 3 (tree) factors. There were 3 groups according to the hierarchical cluster analysis and 4 groups according to the cluster analysis of the elements. It is understood that these groups offer similar characteristics among themselves. Multivariate statistical analysis was successful for this study.

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