scholarly journals Risk of Nonresponse Bias and the Length of the Field Period in a Mixed-Mode General Population Panel

2021 ◽  
Author(s):  
Bella Struminskaya ◽  
Tobias Gummer
Keyword(s):  
Panel Data ◽  
General Population ◽  
Data Collection ◽  
Mixed Mode ◽  
Nonresponse Bias ◽  
German Population ◽  
Coefficients Of Variation ◽  
Using Data ◽  
Day By Day

Abstract Survey researchers are often confronted with the question of how long to set the length of the field period. Longer fielding time might lead to greater participation yet requires survey managers to devote more of their time to data collection efforts. With the aim of facilitating the decision about the length of the field period, we investigated whether a longer fielding time reduces the risk of nonresponse bias to judge whether field periods can be ended earlier without endangering the performance of the survey. By using data from six waves of a probability-based mixed-mode (online and mail) panel of the German population, we analyzed whether the risk of nonresponse bias decreases over the field period by investigating how day-by-day coefficients of variation develop during the field period. We then determined the optimal cut-off points for each mode after which data collection can be terminated without increasing the risk of nonresponse bias and found that the optimal cut-off points differ by mode. Our study complements prior research by shifting the perspective in the investigation of the risk of nonresponse bias to panel data as well as to mixed-mode surveys, in particular. Our proposed method of using coefficients of variation to assess whether the risk of nonresponse bias decreases significantly with each additional day of fieldwork can aid survey practitioners in finding the optimal field period for their mixed-mode surveys.

scholarly journals Deployment of a Mixed-Mode Data Collection Strategy Does Not Reduce Nonresponse Bias in a General Population Health Survey

2012 ◽  
Vol 47 (4) ◽  
pp. 1739-1754 ◽  
Author(s):  
Timothy J. Beebe ◽  
Donna D. McAlpine ◽  
Jeanette Y. Ziegenfuss ◽  
Sarah Jenkins ◽  
Lindsey Haas ◽  
...  
Keyword(s):  
General Population ◽  
Data Collection ◽  
Population Health ◽  
Health Survey ◽  
Mixed Mode ◽  
Nonresponse Bias ◽  
Data Collection Strategy

Modelling Mode Effects for a Panel Survey in Transition

2021 ◽  
pp. 63-88
Author(s):  
Paul P. Biemer ◽  
Kathleen Mullan Harris ◽  
Dan Liao ◽  
Brian J. Burke ◽  
Carolyn Tucker Halpern
Keyword(s):  
Data Collection ◽  
Data Quality ◽  
Mixed Mode ◽  
Good News ◽  
Longitudinal Change ◽  
Nonresponse Bias ◽  
Two Phase ◽  
Mode Effects ◽  
Analytical Results ◽  
Weighting Adjustments

Funding reductions combined with increasing data-collection costs required that Wave V of the USA’s National Longitudinal Study of Adolescent to Adult Health (Add Health) abandon its traditional approach of in-person interviewing and adopt a more cost-effective method. This approach used the mail/web mode in Phase 1 of data collection and in-person interviewing for a random sample of nonrespondents in Phase 2. In addition, to facilitate the comparison of modes, a small random subsample served as the control and received the traditional in-person interview. We show that concerns about reduced data quality as a result of the redesign effort were unfounded based on findings from an analysis of the survey data. In several important respects, the new two-phase, mixed-mode design outperformed the traditional design with greater measurement accuracy, improved weighting adjustments for mitigating the risk of nonresponse bias, reduced residual (or post-adjustment) nonresponse bias, and substantially reduced total-mean-squared error of the estimates. This good news was largely unexpected based upon the preponderance of literature suggesting data quality could be adversely affected by the transition to a mixed mode. The bad news is that the transition comes with a high risk of mode effects for comparing Wave V and prior wave estimates. Analytical results suggest that significant differences can occur in longitudinal change estimates about 60 % of the time purely as an artifact of the redesign. This begs the question: how, then, should a data analyst interpret significant findings in a longitudinal analysis in the presence of mode effects? This chapter presents the analytical results and attempts to address this question.

scholarly journals Do Sequential Mixed-Mode Surveys Decrease Nonresponse Bias, Measurement Error Bias, and Total Bias? An Experimental Study

2019 ◽  
Vol 7 (4) ◽  
pp. 545-571 ◽  
Author(s):  
Joseph W Sakshaug ◽  
Alexandru Cernat ◽  
Trivellore E Raghunathan
Keyword(s):  
Measurement Error ◽  
Data Collection ◽  
Mixed Mode ◽  
Traffic Accidents ◽  
Nonresponse Bias ◽  
Bias Estimation ◽  
Design Decisions ◽  
Second Mode ◽  
Error Bias

Abstract Mixing multiple modes of survey data collection has become standard practice in survey research. Mixed-mode surveys are faced with a slew of design decisions regarding which types of modes to administer and which sequence to administer them in. Such decisions are largely based on administrative objectives, such as minimizing costs and maximizing response rates. However, just as important to these mixed-mode decisions is their impact on nonresponse bias, measurement error bias, and total bias, which are understudied issues in the mixed-mode literature. In this article, we report on a sequential mixed-mode experiment of young adult drivers randomized to one of two mode sequences: an interviewer-administered (telephone) mode with self-administered (mail) follow-up, or the reverse sequence. Using a mix of direct and indirect bias estimation strategies, we find support for the notion that implementing a second mode of data collection can reduce nonresponse and measurement error bias, but the sequence in which the modes are administered makes a difference: the mail-telephone sequence minimizes bias to a greater extent than the telephone-mail sequence, relative to the starting mode and overall. However, a backfiring effect was found: despite reducing both nonresponse and measurement error bias, switching from mail to telephone increased the total bias in a key estimate of traffic accidents. A discussion of these findings and their implications for survey practice are provided in conclusion.

PROSES KOMUNIKASI KELOMPOK DALAM METODE PEMBELAJARAN SENTRA UNTUK MEMBENTUK KEMANDIRIAN ANAK

Jurnal Common ◽  
2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Rismawaty Rismawaty ◽  
Sofie Aulia Rahmah
Keyword(s):  
Data Collection ◽  
Qualitative Method ◽  
Group Communication ◽  
Communication Process ◽  
Learning Method ◽  
Online Data ◽  
Analysis Techniques ◽  
Collection Data ◽  
Descriptive Approach ◽  
Using Data

Penelitian ini dilakukan untuk mengetahui proses komunikasi kelompok dalam metode pembelajaran sentra di TK Zaid bin Tsabit. Penelitian ini mendiskusikan tentang proses komunikasi kelompok. Metode penelitian yang digunakan dalam penelitian ini adalah Metode Kualitatif dengan pendekatan Deskriptif. Teknik pengumpulan data yang dilakukan peneliti ada dengan studi pustaka, penelusuran data secara online, wawancara, observasi serta dokumentasi dengan 3 orang informan kunci yaitu guru di TK Zaid bin Tsabit serta 3 informan pendukung yaitu Kepala TK Zaid bin Tsabit dan 2 orang tua murid. Uji keabsahan data dengan peningkatan ketekunan, triangulasi dan diskusi dengan teman sejawat, teknik analisis data menggunakan pengumpulan data, reduksi data, penyajian data, penarikan kesimpulan dan evaluasi.Hasil penelitian ini bahwa Proses komunikasi yang terjadi merupakan komunikasi langsung yang terjadi dua arah dan dilakukan terus menerus untuk membentuk kemandirian anak. Proses komunikasi yang terjadi dalam kelompok metode pembelajaran sentra membentuk kemandirian anak. Proses komunikasi yang dilakukan oleh guru kepada anak dilakukan dengan memberikan arahan-arahan kepada anak serta contoh dari arahan yang telah disampaikan oleh guru.Kesimpulan pada penelitian ini adalah metode pembelajaran sentra membentuk kemandirian anak lewat komunikasi yang dilakukan guru secara terus menerus, karna melalui pembelajaran sentra anak diminta untuk melakukan segala sesuatunya sendiri dalam pengawasan guru. Saran yang diberikan adalah guru harus lebih kreatif dalam memberikan materi pada metode pembelajaran sentra serta bersikap lebih tegas dalam mendidik anak dan melakukan komunikasi yang berkelanjutan dengan orang tua murid. --------------------------------------------------------------------------------- This study was conducted to determine the process of group communication in the center learning method at TK Zaid bin Tsabit. This study discusses the process of group communication. The research method used in this study is a qualitative method with a descriptive approach. The data collection techniques carried out by the researcher were with literature studies, online data searches, interviews, observation and documentation with 3 key informants namely the teacher at TK Zaid bin Tsabit and 3 supporting informants namely TK Head Zaid bin Tsabit and 2 parents. Test the validity of data by increasing perseverance, triangulation and discussion with colleagues, data analysis techniques using data collection, data reduction, data presentation, drawing conclusions and evaluations.The results of this study that the communication process that occurs is direct communication that occurs in two directions and carried out continuously to form the independence of children. The communication process that occurs in a group of central learning methods shapes children's independence. The process of communication carried out by the teacher to the child is done by giving directions to the child as well as examples of directions that have been delivered by the teacher.The conclusion of this study is that the central learning method shapes children's independence through continuous communication by the teacher, because through central learning children are asked to do everything themselves in the supervision of the teacher. The advice given is that the teacher must be more creative in giving material to the central learning method and be more assertive in educating children and making ongoing communication with parents.

Implementasi Kebijakan “Segregasi” Kelas Berbasis Gender Di SMP Islam Al-Maarif 01 Singosari

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Nadzifatul Mu’tamaroh ◽  
Yuni Pantiwati
Keyword(s):  
Data Collection ◽  
Junior High School ◽  
Policy Process ◽  
Junior High ◽  
Gender Segregation ◽  
Male Students ◽  
Collection Data ◽  
Gender Based ◽  
Using Data ◽  
Guidance Teacher

Abstract: Gender issues must be resolved immediately. The study aims to describe: 1) Implementation of gender-based class segregation policies; 2) Inhibiting factors and solutions in implementing gender-based class segregation policies and school efforts in overcoming the problems faced in implementing gender-based class segregation policies. The type of research used is descriptive qualitative. This research was carried out at Islamic junior high school Maarif 01 Singosari. Data collection techniques are interviews, observation, and documentation. The analysis phase used is data collection, data reduction, data presentation, conclusion drawing. To check the validity of the data using data and source triangulation. The results showed that 1) The implementation of the gender-based class segregation policy process of its implementation was carried out by separating classes between male and female classes, from grades VII, VII and X but in one building, one organization and supported by the implementation of orderly. 2) Barriers and solutions faced by schools in carrying out policies are: attitudes of male students disagree with the existence of policies that have an impact on the class structure when learning hours are less conducive. The solution that is done by the school, by providing approaches and direction to students, and every teacher and especially the counseling guidance teacher and subject teachers must know all the problems that often occur to Al Maarif SMPI students to be evaluated on an ongoing basis.Keywords: Gender, Segregation, Policy Implementation Abstrak: Permasalahan mengenai gender harus segara dituntaskan.Tujuan penelitian ini adalah untuk mendeskripsikan: 1) Implementasi kebijakan segregasi kelas berbasis gender; 2) Faktor penghambatdan solusi dalam implementasi kebijakan segregasi kelas berbasis gender dan upaya sekolah dalam mengatasi masalah yang dihadapi dalam implementasi kebijakan segregasi kelas berbasis gender. Jenis penelitian yang digunakan adalah deskriptif kualitatif. Penelitian ini dilaksanakan di SMPIslamAl Maarif 01 Singosari. Teknik pengumpulan data yaitu Wawancara, observasi dan dokumentasi. Tahapan analisis yang digunakan yaitu pengumpulan data, reduksi data, penyajian data, penarikan kesimpulan. Untuk mengecek keabsahan data menggunakan triangulasi data dan sumber. Hasil penelitian menunjukkan bahwa 1) Implementasi kebijakan segregasi kelas berbasis gender proses penerapannya dilakukan dengan cara pemisahan kelas antara kelas laki-laki dan kelas perempuan, mulai dari kelas VII, VII dan X akan tetapi dalam satu gedung, satu organisasi dan didukung dengan diterapkannya tata tertib. 2) Kendala dan solusi yang dihadapi sekolah dalam menjalankan kebijakan yaitu: sikap siswa putra kurang setuju adanya kebijakan hal tersebut berdampak pada suasana kelas pada saat jam pembelajaran kurang kondusif. Solusi yang dilakukan sekolah, dengan memberikan pendekatan dan arahan terhadap siswa, dan setiap guru dan khususnya guru BK dan guru mata pelajaran harus mengetahui segala problem yang sering terjadi pada siswa Islamic junior high schoolAl Maarif untuk dievaluasi secara berkelanjutan.Kata kunci: Segregasi, Gender, Implementasi Kebijakan

Integration of statistical and administrative agricultural data from Namibia

2021 ◽  
pp. 1-22
Author(s):  
Emily Berg ◽  
Johgho Im ◽  
Zhengyuan Zhu ◽  
Colin Lewis-Beck ◽  
Jie Li
Keyword(s):  
Measurement Error ◽  
Data Collection ◽  
Administrative Data ◽  
Statistical Data ◽  
Data Sources ◽  
Extension Programs ◽  
Multiple Data ◽  
Administrative Agencies ◽  
Crop Area ◽  
Using Data

Statistical and administrative agencies often collect information on related parameters. Discrepancies between estimates from distinct data sources can arise due to differences in definitions, reference periods, and data collection protocols. Integrating statistical data with administrative data is appealing for saving data collection costs, reducing respondent burden, and improving the coherence of estimates produced by statistical and administrative agencies. Model based techniques, such as small area estimation and measurement error models, for combining multiple data sources have benefits of transparency, reproducibility, and the ability to provide an estimated uncertainty. Issues associated with integrating statistical data with administrative data are discussed in the context of data from Namibia. The national statistical agency in Namibia produces estimates of crop area using data from probability samples. Simultaneously, the Namibia Ministry of Agriculture, Water, and Forestry obtains crop area estimates through extension programs. We illustrate the use of a structural measurement error model for the purpose of synthesizing the administrative and survey data to form a unified estimate of crop area. Limitations on the available data preclude us from conducting a genuine, thorough application. Nonetheless, our illustration of methodology holds potential use for a general practitioner.

scholarly journals Willingness of Greek general population to get a COVID-19 vaccine

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Georgia Kourlaba ◽  
Eleni Kourkouni ◽  
Stefania Maistreli ◽  
Christina-Grammatiki Tsopela ◽  
Nafsika-Maria Molocha ◽  
...  
Keyword(s):  
Public Health ◽  
General Population ◽  
Data Collection ◽  
Sample Size ◽  
Significant Proportion ◽  
Control Measures ◽  
Systematic Sampling ◽  
Computer Assisted ◽  
Public Health Officials ◽  
To Receive

Abstract Background Epidemiological data indicate that a large part of population needs to be vaccinated to achieve herd immunity. Hence, it is of high importance for public health officials to know whether people are going to get vaccinated for COVID-19. The objective of the present study was to examine the willingness of adult residents in Greece to receive a COVID-19 vaccine. Methods A cross-sectional was survey conducted among the adult general population of Greece between April 28, 2020 to May 03, 2020 (last week of lockdown), using a mixed methodology for data collection: Computer Assisted Telephone Interviewing (CATI) and Computer Assisted web Interviewing (CAWI). Using a sample size calculator, the target sample size was found to be around 1000 respondents. To ensure a nationally representative sample of the urban/rural population according to the Greek census 2011, a proportionate stratified by region systematic sampling procedure was used to recruit particpants. Data collection was guided through a structured questionnaire. Regarding willingness to COVID-19 vaccination, participants were asked to answer the following question: “If there was a vaccine available for the novel coronavirus, would you do it?” Results Of 1004 respondents only 57.7% stated that they are going to get vaccinated for COVID-19. Respondents aged > 65 years old, those who either themselves or a member of their household belonged to a vulnerable group, those believing that the COVID-19 virus was not developed in laboratories by humans, those believing that coronavirus is far more contagious and lethal compared to the H1N1 virus, and those believing that next waves are coming were statistically significantly more likely to be willing to get a COVID-19 vaccine. Higher knowledge score regarding symptoms, transmission routes and prevention and control measures against COVID-19 was significantly associated with higher willingness of respondents to get vaccinated. Conclusion A significant proportion of individuals in the general population are unwilling to receive a COVID-19 vaccine, stressing the need for public health officials to take immediate awareness-raising measures.

A mixed-mode approach to data collection: combining web and paper questionnaires to examine nurses’ attitudes to mental illness

2010 ◽  
Vol 66 (7) ◽  
pp. 1623-1632 ◽  
Author(s):  
Veslemøy Guise ◽  
Mary Chambers ◽  
Maritta Välimäki ◽  
Pekka Makkonen
Keyword(s):  
Mental Illness ◽  
Data Collection ◽  
Mixed Mode

ADAB PEMBELAJARAN AL-QURAN: STUDI KITAB AT-TIBYAN FI ADABI HAMALATIL QURAN

2020 ◽  
Vol 18 (2) ◽  
pp. 219
Author(s):  
Ismail Ismail ◽  
Abdulloh Hamid
Keyword(s):  
Data Collection ◽  
Research Methods ◽  
Secondary Data ◽  
Study Data ◽  
Library Research ◽  
The Face ◽  
Using Data

This research is an attempt to know the courtesy reading the Quran in the book of At-Tibyan fi Adabi Hamalatil Quran by Imam Nawawi. The question that is to be answered through this study is (1) how the courtesy to read Al-Quran in the book At-Tibyan, (2) How does the relevance of courtesy to read the Qur'an in the book of At-Tibyan in contemporary times? The research methods use library research. This study is conducted using data collection techniques by conducting observations on certain sources, seeking, studying books, articles, journals, theses or others related to this study. Data collection is divided into two sources, namely primary and secondary data. Then the data are analyzed using descriptive and contextual methods. The results show that courtesy reading the Quran in the book of At-Tibyan fi Adabi Hamalatil Quran includes: Solemn, sincere, ethical, clean and holy State, facing the Qibla, start with Ta'awudz. While the relevance of courtesy reading the Quran in the book of At-Tibyan fi Adabi Hamalatil Quran with the context of contemporary can be a solution in improving the manners of interacting with the Quran, especially in the face of today's characteristics or contemporary.

scholarly journals Plagiarism Detection Process using Data Mining Techniques

2017 ◽  
Vol 5 (4) ◽  
pp. 68
Author(s):  
Mahwish Abid ◽  
Muhammad Usman ◽  
Muhammad Waleed Ashraf
Keyword(s):  
Data Mining ◽  
Text Mining ◽  
Computer Systems ◽  
Plagiarism Detection ◽  
Data Mining Techniques ◽  
Detection Process ◽  
Using Data ◽  
Day By Day

<strong>As the technology is growing very fast and usage of computer systems is increased  as compared to the old times, plagiarism is the phenomenon which is increasing day by day. Wrongful appropriation of someone else’s work is known as plagiarism. Manually detection of plagiarism is difficult so this process should be automated. There are various tools which can be used for plagiarism detection. Some works on intrinsic plagiarism while other work on extrinsic plagiarism. Data mining the field which can help in detecting the plagiarism as well as can help to improve the efficiency of the process. Different data mining techniques can be used to detect plagiarism. Text mining, clustering, bi-gram, tri-grams, n-grams are the techniques which can help in this process</strong>

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