scholarly journals Analysis of correlated data with feedback for time-dependent covariates in psychiatry research

2020 ◽  
Vol 33 (5) ◽  
pp. e100263
Author(s):  
Elsa Vazquez Arreola ◽  
Jeffrey R Wilson ◽  
Ding-Geng Chen
Keyword(s):  
Data Collection ◽  
Repeated Measures ◽  
Correlated Data ◽  
Time Dependent ◽  
Methodological Development ◽  
Marginal Models ◽  
Feedback Effects ◽  
The Hierarchical Structure ◽  
The Subject ◽  
Time Dependent Covariates

In studies on psychiatry and neurodegenerative diseases, it is common to have data that are correlated due to the hierarchical structure in data collection or to repeated measures on the subject longitudinally. However, the feedback effect created due to time-dependent covariates in these studies is often overlooked and seldom modelled. This article reviews the methodological development of feedback effects with marginal models for longitudinal data and discusses their implementation.

A two-stage Generalized Method of Moments model for feedback with time-dependent covariates

2020 ◽  
pp. 096228022098140
Author(s):  
Elsa Vazquez-Arreola
Keyword(s):  
Repeated Measures ◽  
Generalized Method Of Moments ◽  
Regression Coefficients ◽  
Stage Model ◽  
Two Stage ◽  
Feedback Effects ◽  
Moment Conditions ◽  
Delayed Effects ◽  
Obesity Status ◽  
Time Dependent Covariates

Correlated observations in longitudinal studies are often due to repeated measures on the subjects. Additionally, correlation may be realized due to the association between responses at a particular time and the predictors at earlier times. There are also feedback effects (relation between responses in the present and the covariates at a later time), though these are not always relevant and are often ignored. All these cases of correlation must be accounted for as they can have different effects on the regression coefficients. Several authors have provided models that reflect the direct and delayed impact of covariates on the response, utilizing valid moment conditions to estimate the relevant regression coefficients. However, there are applications when one cannot ignore the effect of the responses on future covariates. A two-stage model to account for the feedback, modeling the direct as well as the delayed effects of the covariates on future responses and vice versa is presented. The use of the two-stage model is demonstrated by revisiting child morbidity and its impact on future values of body mass index using Philippines health data. Also, obesity status and its feedback effects on physical activity and depression levels using the Add Health dataset are analyzed.

A Systematic Literature Review of the EFQM Excellence Model from 1991 to 2019

1970 ◽  
Vol 2 (2) ◽  
pp. 11-15
Author(s):  
Muhammad Yousaf ◽  
Petr Bris
Keyword(s):  
Quality Management ◽  
Data Collection ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Quantitative Research ◽  
Web Of Science ◽  
State Of The Art ◽  
Future Research ◽  
European Foundation ◽  
The Subject

A systematic literature review (SLR) from 1991 to 2019 is carried out about EFQM (European Foundation for Quality Management) excellence model in this paper. The aim of the paper is to present state of the art in quantitative research on the EFQM excellence model that will guide future research lines in this field. The articles were searched with the help of six strings and these six strings were executed in three popular databases i.e. Scopus, Web of Science, and Science Direct. Around 584 peer-reviewed articles examined, which are directly linked with the subject of quantitative research on the EFQM excellence model. About 108 papers were chosen finally, then the purpose, data collection, conclusion, contributions, and type of quantitative of the selected papers are discussed and analyzed briefly in this study. Thus, this study identifies the focus areas of the researchers and knowledge gaps in empirical quantitative literature on the EFQM excellence model. This article also presents the lines of future research.

PENINGKATAN KEMAMPUAN MENYIMAK CERITA MELALUI PENERAPAN MODEL PEMBELAJARAN TIM PENDENGAR PADA MATA PELAJARAN BAHASA INDONESIA SISWA KELAS V SD NEGERI 007 PAGARAN TAPAH DARUSSALAM KABUPATEN ROKAN HULU

2017 ◽  
Vol 6 (1) ◽  
pp. 24
Author(s):  
Gusliarni Gusliarni
Keyword(s):  
Data Collection ◽  
Learning Model ◽  
Listening Skills ◽  
Class V ◽  
Average Ability ◽  
Average Value ◽  
The Subject ◽  
Data Collection Technique ◽  
Academic Year ◽  
Bahasa Indonesia

This research is motivated by the lack of listening skills obtained by the students, it is seen from the results of an assessment of the listening skills of students still achieved an average grade 56.32 or reach under the KKM predetermined value is 70. This study aims to determine whether the Team Learning model Listener can improve listening skills of students in the subject of Indonesian student Class V SD Negeri 007 Pagaran Tapah Darussalam Rokan Hulu. The subjects were 38 students in the academic year 2014-2015. Form of research is classroom action research. The data collection technique used is the technique of test and non test. Based on the results, it can be concluded that the ability to listen to the story class V students of SD Negeri 007 Pagaran Tapah Darussalam Rokan Hulu can be improved by applying the learning model listener team. On average ability to listen to stories of students in the early test is average with the average value of 56.32 by the medium category, and in the first cycle rose to 69.47 in the medium category, while in the second cycle listening skills of students categorized as high with the percentage of the average value of 76, 58 with a high category. Therefore, the success rate has exceeded 70 of the total number of students, which means that most students have achieved success predetermined value (minimum 75%).

PENERAPAN STRATEGI PEMBELAJARAN GO TO YUOR POST UNTUK MENINGKATKAN HASIL BELAJAR IPS SISWA KELAS VI SDN 024 TARAI BANGUN KECAMATAN TAMBANG KABUPATEN KAMPAR

2017 ◽  
Vol 1 (1) ◽  
pp. 85
Author(s):  
Delfi Yendri
Keyword(s):  
Social Sciences ◽  
Data Collection ◽  
Student Learning ◽  
Learning Outcomes ◽  
Learning Strategies ◽  
Student Learning Outcomes ◽  
Student Activity ◽  
The Poor ◽  
The Subject ◽  
Data Collection Activity

This research is motivated by the poor results of Study Social Sciences (IPS) Student Class VI SDN 024 Tarai Bangun Kecamatan Tambang. This study aims to determine the resulting increase studying social sciences (IPS) student class VI SDN 024 Tarai Bangun Kecamatan Tambang through the application of learning strategies go to yuor post, which carried out for 1 month. The subjects were VI SDN 024 Tarai Bangun Kecamatan Tambang by the number of students as many as 38 people. Form of research is classroom action research. The research instrument consists of instruments and instrument performance data collection activity observation sheet form teacher and student activity. Based on the research, the conclusion to this study is based on the analysis and discussion in chapter IV can be concluded that the application of learning strategies go to yuor post can improve learning outcomes in the subject of social sciences grade VI SDN 024 Tarai Bangun Kecamatan Tambang. Evidenced by the increase in learning outcomes before action to the first cycle, to cycle II. Before the act of student learning outcomes classified as unresolved with an average of 59%, an increase in the first cycle by an average of 69%. While the results of student learning in the second cycle must be increased by an average of 75% with the category completed.

Re-appraising and Re-classifying: a New Look at the Corpus of Miniature Socketed Axes from Britain

2020 ◽  
Vol 75 (1) ◽  
pp. 1-27
Author(s):  
Alex Bliss
Keyword(s):  
Spatial Distribution ◽  
Data Collection ◽  
Detailed Analysis ◽  
Significant Proportion ◽  
Direct Result ◽  
Object Type ◽  
England And Wales ◽  
Extensive Data ◽  
Metal Artefacts ◽  
The Subject

The advent of the Portable Antiquities Scheme (PAS) has added a great deal to our understanding of prehistoric metal artefacts in England and Wales, namely in expanding enormously the corpuses of objects previously thought to be quite scarce. One such artefact type is the miniature socketed 'votive' axe, most of which are found in Wiltshire and Hampshire. As a direct result of developing such recording initiatives, reporting of these artefacts as detector finds from the early 2000s onwards has virtually trebled the number originally published by Paul Robinson in his 1995 analysis. Through extensive data-collection, synthesising examples recorded via the PAS with those from published excavations, the broad aims of this paper (in brief) are as follows: firstly, produce a solid typology for these artefacts; secondly, investigate their spatial distribution across England and Wales. As a more indirect third aim, this paper also seeks to redress the imbalance of focus and academic study specifically applying to Hampshire finds of this object type, which despite producing a significant proportion of the currently known corpus have never been the subject of detailed analysis.

Strategi Humas Partai Gerindra dalam Membangun Citra Partai pada Pemilu 2014

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Rialdo Rezeky ◽  
Muhammad Saefullah
Keyword(s):  
Data Collection ◽  
Public Relations ◽  
Media Relations ◽  
Executive Board ◽  
The Public ◽  
Community Or ◽  
The Subject ◽  
Main Components ◽  
The Right ◽  
Participatory Observation

The approach of this research is qualitative and descriptive. In this study those who become the subject of research is an informant (key figure). The subject of this study is divided into two main components, consisting of internal public and external public that is from the Board of the Central Executive Board of Gerindra Party, Party Cadres, Observers and Journalists. The object of this research is the behavior, activities and opinions of Gerindra Party Public Relation Team. In this study used data collection techniques with interviews, participatory observation, and triangulation of data. The results of this study indicate that the Public Relations Gerindra has implemented strategies through various public relations programs and establish good media relations with the reporters so that socialization goes well. So also with the evaluation that is done related to the strategy of the party. The success of Gerindra Party in maintaining the party’s image in Election 2014 as a result of the running of PR strategy and communication and sharing the right type of program according to the characteristics of the voting community or its constituents.Keywords: PR Strategy, Gerindra Party, Election 2014

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