Aus verschiedenen Perspektiven wird in dieser Festschrift zu Ehren von Prof. Dr. Dieter Urban das thematische Feld der Einstellung-Verhaltens-Forschung beleuchtet. Dies umfasst sowohl neuere theoretisch-analytische Zugänge als auch aktuelle methodisch-statistische Entwicklungen sowie...

This paper starts from a review of RCT studies in development economics, and documents many studies largely ignore attrition once attrition rates are found balanced between treatment arms. The paper analyzes the implications of attrition for the internal and external validity of the results of a...

Abstract In this review, we explore recent developments in the area of linear and nonlinear generalized mixed-effects regression models and various alternatives, including generalized estimating equations for analysis of longitudinal data. Methods are described for continuous and normally...