Stephan Haug
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View article: QUADICA v2: Extending the large-sample data set for water QUAlity, DIscharge and Catchment Attributes in Germany
QUADICA v2: Extending the large-sample data set for water QUAlity, DIscharge and Catchment Attributes in Germany Open
The QUADICA version 2 dataset significantly expands upon the first version of QUADICA (water QUAlity, DIscharge and Catchment Attributes for large-sample studies in Germany), by incorporating more recent data, additional water quality and …
View article: Evaluating and defining agronomically relevant detection limits for spectral reflectance-based assessment of N uptake in wheat
Evaluating and defining agronomically relevant detection limits for spectral reflectance-based assessment of N uptake in wheat Open
View article: Multi-level validation of the German physical activity barriers self-efficacy scale in a sample of female sixth-graders
Multi-level validation of the German physical activity barriers self-efficacy scale in a sample of female sixth-graders Open
The authors have withdrawn this preprint due to a need to make corrections.
View article: Multi-level validation of the German physical activity self-efficacy scale in a sample of female sixth-graders
Multi-level validation of the German physical activity self-efficacy scale in a sample of female sixth-graders Open
View article: The German Basic Psychological Needs Satisfaction in Physical Education Scale: Adaption and Multilevel Validation in a Sample of Sixth-Grade Girls
The German Basic Psychological Needs Satisfaction in Physical Education Scale: Adaption and Multilevel Validation in a Sample of Sixth-Grade Girls Open
(1) Background: Self-determination theory (SDT) claims that need supportive behavior is related to the satisfaction of the basic psychological needs: autonomy, relatedness and competence. The student–teacher relationship is of special inte…
View article: Additional file 1 of Multi-level validation of the German physical activity self-efficacy scale in a sample of female sixth-graders
Additional file 1 of Multi-level validation of the German physical activity self-efficacy scale in a sample of female sixth-graders Open
Additional file 1. validation data; description: minimal dataset necessary to replicate the analysis.
View article: Multi-level validation of the German physical activity barriers self-efficacy scale in a sample of female sixth-graders
Multi-level validation of the German physical activity barriers self-efficacy scale in a sample of female sixth-graders Open
Background The physical activity behaviour of the majority of children and adolescents is insufficient. Self-efficacy is regarded as one of the most important determinants able to enhance physical activity. The purpose of this study is to …
View article: Indirect Inference for Lévy‐driven continuous‐time GARCH models
Indirect Inference for Lévy‐driven continuous‐time GARCH models Open
We advocate the use of an Indirect Inference method to estimate the parameter of a COGARCH(1,1) process for equally spaced observations. This requires that the true model can be simulated and a reasonable estimation method for an approxima…
View article: Fractionally Integrated COGARCH Processes*
Fractionally Integrated COGARCH Processes* Open
We construct fractionally integrated continuous-time GARCH models, which capture the observed long range dependence of squared volatility in high-frequency data. Since the usual Molchan-Golosov and Mandelbrot-van-Ness fractional kernels le…
View article: Indirect Inference for Lévy-driven continuous-time GARCH models
Indirect Inference for Lévy-driven continuous-time GARCH models Open
We advocate the use of an Indirect Inference method to estimate the parameter of a COGARCH(1,1) process for equally spaced observations. This requires that the true model can be simulated and a reasonable estimation method for an approxima…
View article: A simple non-parametric goodness-of-fit test for elliptical copulas
A simple non-parametric goodness-of-fit test for elliptical copulas Open
In this paper, we propose a simple non-parametric goodness-of-fit test for elliptical copulas of any dimension. It is based on the equality of Kendall’s tau and Blomqvist’s beta for all bivariate margins. Nominal level and power of the pro…
View article: Indirect Inference for LLvy-Driven Continuous-Time GARCH Models
Indirect Inference for LLvy-Driven Continuous-Time GARCH Models Open
View article: Clay mineral composition modifies decomposition and sequestration of organic carbon and nitrogen in fine soil fractions
Clay mineral composition modifies decomposition and sequestration of organic carbon and nitrogen in fine soil fractions Open
View article: Copula structure analysis based on extreme dependence
Copula structure analysis based on extreme dependence Open
We introduce a technique to analyse the dependence structure of an elliptical copula with focus on extreme observations.The classical assumption of a linear model for the distribution of a random vector is replaced by the weaker assumption…