Interviewing adolescents through time: balancing continuity and flexibility in a qualitative longitudinal study

2020 ◽  
Author(s):  
Susanne Vogl ◽  
Ulrike Zartler
Keyword(s):  
Large Scale ◽  
Longitudinal Research ◽  
Panel Study ◽  
Transitional Stage ◽  
Lessons Learnt ◽  
Therapeutic Value ◽  
Negative Effect ◽  
Set Up ◽  
Interviewing Technique ◽  
Over Time

Qualitative longitudinal research (QLR) has great potential for elucidating processes and change over time. Despite the growing interest in QLR, methodological and practical challenges require further reflection. In this contribution, we reflect on two major issues in interviewing adolescents in QLR: panel maintenance and changes in the research set-up, including interviewing technique, content and interviewer (dis)continuity. Based on experiences from a panel study on understanding how young people’s opportunities in life are shaped during a transitional stage (‘Pathways to the Future’), we present methodological and pragmatic decisions, rationales and lessons learnt to inform future qualitative longitudinal studies. We show how change is omnipresent in QLR practice, and how it demands researchers’ openness and flexibility as well as finding a balance between continuity and adaption. The process can be challenging, but it also offers opportunities.<br /><br />Key messages<br />Reflecting on a large-scale longitudinal project, we exemplify methodological and pragmatic decisions, rationales, and lessons learnt regarding these issues:<ul><li>Panel maintenance is an evolving process, demanding innovation.</li><br /><li>Respondents are motivated by a therapeutic value of the interview and altruism.</li><br /><li>Interviewer discontinuity might have less negative effect than often assumed.</li></ul>

The Nuts and Bolts of Implementing Large-Scale Longitudinal Studies

1992 ◽  
Vol 7 (1) ◽  
pp. 63-78 ◽  
Author(s):  
Magda Stouthamer-Loeber ◽  
Welmoet van Kammen ◽  
Rolf Loeber
Keyword(s):  
Staff Training ◽  
Large Scale ◽  
Longitudinal Research ◽  
Data Entry ◽  
Management Tool ◽  
Academic Training ◽  
Scientific Journals ◽  
Training And Supervision ◽  
Large Numbers ◽  
Set Up

Studies that assess large numbers of subjects for longitudinal research, for epidemiological purposes, or for the evaluation of prevention and intervention efforts, are very costly and should be undertaken with the greatest care to ensure their success. The success of a study, apart from its scientific merit, depends largely on the ability of the researcher to plan and set up a smoothly running operation. However, the skills required for such a task are often not acquired in academic training, nor do scientific journals abound with information on the practical aspects of running a large study. This paper summarizes the experience gained in executing a longitudinal study and covers aspects of planning, hiring of staff, training and supervision of interviewers, data collection and data entry and management. The importance of the use of the computer as a management tool is stressed.

scholarly journals Panel data or pseudo panels for longitudinal research? Cross-national comparisons using the example of firms' training spend

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Michael Brookes ◽  
Chris Brewster ◽  
Cigdem Gedikli ◽  
Okan Yilmaz
Keyword(s):  
Panel Data ◽  
Large Scale ◽  
Longitudinal Research ◽  
Temporal Changes ◽  
Annual Data ◽  
Firm Level ◽  
Content Type ◽  
Area Of Interest ◽  
Practical Implications ◽  
Over Time

PurposeThe evolution of firm level practices over time has always been a keen area of interest for management scholars. However, in comparison to other social scientists, particularly economists, the relative dearth of firm level panel data sets has restricted the methodological options for exploring inter-temporal changes.Design/methodology/approachThis paper applies a pseudo panel methodology to investigate the evolution of training spend at the firm level over time.FindingsThe analysis is framed within a varieties of capitalism lens and by adopting a more meaningful approach to examining changes over time it leads us to question some of the “truisms” linked to firms expected behaviours within different national institutional frameworks.Research limitations/implicationsAs with any large-scale quantitative analysis, it would always benefits from a larger number of observations and/or a longer time period, in this instance access to annual data rather than 4 or 5 year intervals would have been helpful.Practical implicationsBy adopting a different, and more appropriate, approach to analysing existing cross-sectional data over time this empirical research helps to achieve a deeper understanding of the complex issues that influence decision making at the firm level.Social implicationsAt the firm level, in line with the practical implications above, this will enable decision makers to achieve a deeper understanding of the evolution of the external context in which they operate and the likely influence of that evolution within their own organisation.Originality/valueThis approach enables a more meaningful exploration of inter-temporal changes in situations where longitudinal data does not exist.

scholarly journals A Unique Research Data Infrastructure for Educational Research and Beyond: The National Educational Panel Study

2016 ◽  
Vol 236 (4) ◽  
Author(s):  
Daniel Fuß ◽  
Jutta von Maurice ◽  
Hans-Günther Roßbach
Keyword(s):  
Educational Research ◽  
Large Scale ◽  
Panel Study ◽  
Data Access ◽  
Research Data ◽  
Data Availability ◽  
Background Information ◽  
Data Infrastructure ◽  
Collection Data ◽  
Set Up

AbstractThe article provides an insight into the conceptual and methodological framework as well as the research data infrastructure of the German National Educational Panel Study (NEPS). The NEPS study has been set up to build a profound empirical basis for the description and analysis of educational processes and competence development across the life span. Its large-scale database consists of longitudinal information from more than 60,000 target respondents – distributed over six different starting cohorts ranging from newborns to adults – and from relevant context persons such as parents or teachers. The complex multicohort sequence design schedules annual or even semiannual survey waves including a broad spectrum of competence assessments. All data are thoroughly prepared, documented, and disseminated free of charge in the form of regularly expanded Scientific Use Files. In addition to some background information about NEPS in general, this paper primarily focuses on issues of data collection, data structure, data availability, and the requirements for different types of data access. The number of more than 1,000 data users involved in over 700 research projects so far serves to highlight the potential of NEPS as a unique research data infrastructure for educational research and beyond.

scholarly journals Introduction

2021 ◽  
Vol 7 (1) ◽  
pp. 96-106
Author(s):  
Lidewyde H. Berckmoes ◽  
Marie Rosenkrantz Lindegaard ◽  
Dennis Rodgers
Keyword(s):  
Large Scale ◽  
Longitudinal Research ◽  
Research Process ◽  
Ethnographic Research ◽  
Research Projects ◽  
Over Time ◽  
The Way

While many anthropologists have previously reflected on longitudinal ethnography— for example distinguishing between different categories of longitudinal research, including the ethnographic revisit, either by the same or another researcher, diachronic research projects, involving continuous and sustained engagement over time, or so-called large-scale or multigenerational projects, among others—there has been little reflection on the way particular topics of research might impact on the longitudinal research process. In particular, we argue here that the stakes of longitudinal ethnographic research come to the fore particularly starkly in relation to studies of violence. More specifically, longitudinality potentially both enhances certain risks inherent to carrying out research on violence, while also offering unique opportunities for better understanding the phenomenon more reflexively.

Diagnostik von ICT Literacy: Messen Multiple-Choice-Aufgaben und simulationsbasierte Aufgaben vergleichbare Konstrukte?

Diagnostica ◽  
2020 ◽  
Vol 66 (3) ◽  
pp. 147-157
Author(s):  
Martin Senkbeil ◽  
Jan Marten Ihme
Keyword(s):  
Information Literacy ◽  
Large Scale ◽  
Panel Study ◽  
Multiple Choice ◽  
Ict Literacy ◽  
Computer And Information Literacy ◽  
Literacy Test

Zusammenfassung. ICT Literacy legt eine performanzbasierte Erfassung mit simulierten und interaktiven Testaufgaben nahe. Der vorliegende Beitrag untersucht, ob mit Multiple-Choice (MC)-Aufgaben ein vergleichbares Konstrukt wie mit Simulationsaufgaben erfasst wird. Hierfür wurden die Testergebnisse zweier Instrumente aus aktuellen Large-Scale-Studien gegenübergestellt, die an N = 2 075 Jugendlichen erhoben wurden: der auf MC-Aufgaben basierende ICT Literacy-Test für Klasse 9 des Nationalen Bildungspanels (National Educational Panel Study, NEPS) und der simulationsbasierte Kompetenztest der internationalen Schulleistungsstudie ICILS 2013 (International Computer and Information Literacy Study). Die Analysen unterstützen die Gültigkeit der Konstruktinterpretation des MC-basierten Tests in NEPS. Im Sinne der konvergenten Evidenz korrelieren die MC-Aufgaben substanziell mit den computer- und simulationsbasierten Aufgaben in ICILS 2013 (.68 ≤  r ≤ .90). Weiterhin ergeben sich positive und für beide Tests vergleichbar hohe Korrelationen mit ICT-bezogenen Schülermerkmalen (z. B. Selbstwirksamkeit). Weiterführende Analysen zum Zusammenhang mit allgemeinen kognitiven Fähigkeiten zeigen zudem, dass ICT Literacy und kognitive Grundfähigkeiten distinkte Faktoren repräsentieren.

Platelet Anti-Aggregating Activity and Tolerance of Clopidogrel in Atherosclerotic Patients

1996 ◽  
Vol 76 (06) ◽  
pp. 0939-0943 ◽  
Author(s):  
B Boneu ◽  
G Destelle ◽  
Keyword(s):  
Platelet Aggregation ◽  
Large Scale ◽  
Bleeding Time ◽  
Antithrombotic Activity ◽  
Ambulatory Patients ◽  
Patients At Risk ◽  
Set Up ◽  
Ischemic Events ◽  
Large Scale Clinical Trial ◽  
Selection Of

SummaryThe anti-aggregating activity of five rising doses of clopidogrel has been compared to that of ticlopidine in atherosclerotic patients. The aim of this study was to determine the dose of clopidogrel which should be tested in a large scale clinical trial of secondary prevention of ischemic events in patients suffering from vascular manifestations of atherosclerosis [CAPRIE (Clopidogrel vs Aspirin in Patients at Risk of Ischemic Events) trial]. A multicenter study involving 9 haematological laboratories and 29 clinical centers was set up. One hundred and fifty ambulatory patients were randomized into one of the seven following groups: clopidogrel at doses of 10, 25, 50,75 or 100 mg OD, ticlopidine 250 mg BID or placebo. ADP and collagen-induced platelet aggregation tests were performed before starting treatment and after 7 and 28 days. Bleeding time was performed on days 0 and 28. Patients were seen on days 0, 7 and 28 to check the clinical and biological tolerability of the treatment. Clopidogrel exerted a dose-related inhibition of ADP-induced platelet aggregation and bleeding time prolongation. In the presence of ADP (5 \lM) this inhibition ranged between 29% and 44% in comparison to pretreatment values. The bleeding times were prolonged by 1.5 to 1.7 times. These effects were non significantly different from those produced by ticlopidine. The clinical tolerability was good or fair in 97.5% of the patients. No haematological adverse events were recorded. These results allowed the selection of 75 mg once a day to evaluate and compare the antithrombotic activity of clopidogrel to that of aspirin in the CAPRIE trial.

Migration and the Internet

2017 ◽  
Vol 14 (3) ◽  
pp. 331-342 ◽  
Author(s):  
Thomas John Cooke ◽  
Ian Shuttleworth
Keyword(s):  
United States ◽  
Information And Communication Technologies ◽  
Unobserved Heterogeneity ◽  
Panel Study ◽  
The United States ◽  
Negative Effect ◽  
Information And Communication ◽  
Using Data ◽  
And Migration ◽  
Dynamics Models

It is widely presumed that information and communication technologies, or ICTs, enable migration in several ways; primarily by reducing the costs of migration. However, a reconsideration of the relationship between ICTs and migration suggests that ICTs may just as well hinder migration; primarily by reducing the costs of not moving.  Using data from the US Panel Study of Income Dynamics, models that control for sources of observed and unobserved heterogeneity indicate a strong negative effect of ICT use on inter-state migration within the United States. These results help to explain the long-term decline in internal migration within the United States.

Soil response to chemicals used in a field experiment

2013 ◽  
Vol 27 (2) ◽  
pp. 151-158 ◽  
Author(s):  
S. Jezierska-Tys ◽  
A. Rutkowska
Keyword(s):  
Alkaline Phosphatase ◽  
Enzymatic Activity ◽  
Field Experiment ◽  
Soil Microorganisms ◽  
Block Design ◽  
Soil Samples ◽  
Alkaline Phosphatases ◽  
Soil Response ◽  
Negative Effect ◽  
Set Up

Abstract The effect of chemicals (Reglone 200 SL and Elastiq 550 EC) on soil microorganisms and their enzymatic activity was estimated. The study was conducted in a field experiment which was set up in the split-block design and comprised three treatments. Soil samples were taken six times, twice in each year of study. The results showed that the application of chemicals generally had no negative effect on the number of soil microorganisms. The application of Reglone 200 SL caused an increase of proteolytic and ureolytic activity and affected the activity of dehydrogenases, acid and alkaline phosphatases in the soil. The soil subjected of Elastiq 550 EC was characterized by lower activity of dehydrogenases, protease, urease and alkaline phosphatase.

MODELING THE SOUTH ATLANTIC OCEAN FROM MEDIUM TO HIGH RESOLUTION

2014 ◽  
Vol 31 (2) ◽  
Author(s):  
Mariela Gabioux ◽  
Vladimir Santos da Costa ◽  
Joao Marcos Azevedo Correia de Souza ◽  
Bruna Faria de Oliveira ◽  
Afonso De Moraes Paiva
Keyword(s):  
High Resolution ◽  
Atlantic Ocean ◽  
Large Scale ◽  
South Atlantic ◽  
Surface Relaxation ◽  
The South ◽  
Small Surface ◽  
Basic Model ◽  
Basic Set ◽  
Set Up

Results of the basic model configuration of the REMO project, a Brazilian approach towards operational oceanography, are discussed. This configuration consists basically of a high-resolution eddy-resolving, 1/12 degree model for the Metarea V, nested in a medium-resolution eddy-permitting, 1/4 degree model of the Atlantic Ocean. These simulations performed with HYCOM model, aim for: a) creating a basic set-up for implementation of assimilation techniques leading to ocean prediction; b) the development of hydrodynamics bases for environmental studies; c) providing boundary conditions for regional domains with increased resolution. The 1/4 degree simulation was able to simulate realistic equatorial and south Atlantic large scale circulation, both the wind-driven and the thermohaline components. The high resolution simulation was able to generate mesoscale and represent well the variability pattern within the Metarea V domain. The BC mean transport values were well represented in the southwestern region (between Vitória-Trinidade sea mount and 29S), in contrast to higher latitudes (higher than 30S) where it was slightly underestimated. Important issues for the simulation of the South Atlantic with high resolution are discussed, like the ideal place for boundaries, improvements in the bathymetric representation and the control of bias SST, by the introducing of a small surface relaxation. In order to make a preliminary assessment of the model behavior when submitted to data assimilation, the Cooper & Haines (1996) method was used to extrapolate SSH anomalies fields to deeper layers every 7 days, with encouraging results.

scholarly journals Analysis of 220 Years of Floodplain Population Dynamics in the US at Different Spatial Scales

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 141
Author(s):  
Firoza Akhter ◽  
Maurizio Mazzoleni ◽  
Luigia Brandimarte
Keyword(s):  
Population Dynamics ◽  
Large Scale ◽  
Spatial Scales ◽  
National Level ◽  
State Level ◽  
Economic Activities ◽  
Protection Measures ◽  
Management Planning ◽  
The Us ◽  
Over Time

In this study, we explore the long-term trends of floodplain population dynamics at different spatial scales in the contiguous United States (U.S.). We exploit different types of datasets from 1790–2010—i.e., decadal spatial distribution for the population density in the US, global floodplains dataset, large-scale data of flood occurrence and damage, and structural and nonstructural flood protection measures for the US. At the national level, we found that the population initially settled down within the floodplains and then spread across its territory over time. At the state level, we observed that flood damages and national protection measures might have contributed to a learning effect, which in turn, shaped the floodplain population dynamics over time. Finally, at the county level, other socio-economic factors such as local flood insurances, economic activities, and socio-political context may predominantly influence the dynamics. Our study shows that different influencing factors affect floodplain population dynamics at different spatial scales. These facts are crucial for a reliable development and implementation of flood risk management planning.

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