We consider the design and analysis of multi-factor experiments using fractional factorial incomplete designs within potential outcome framework. These are particularly useful when limited resources make running a full infeasible. connect our design-based methods to standard regression methods. further motivate usefulness these in observational studies, where certain treatment combinations may ...

The card-sorting task is a flexible research tool that is widely used across many of the subfields of psychology. Yet this same great flexibility requires researchers to make several (seemingly arbitrary) decisions in their designs, such as fixing a sufficient number of objects to sort, setting task requirements, and creating task instructions for participants. In the present research, we provi...

Expression of the S1S2 ligand binding domain [Kuusinen, A., Arvola, M. & Keinänen, K. (1995) EMBO J. 14, 6327-6332] of the rat alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid-selective glutamate receptor GluR2 in Escherichia coli under control of a T7 promoter leads to production of >100 mg/liter of histidine-tagged S1S2 protein (HS1S2) in the form of inclusion bodies. Using a novel fr...

The purpose of this study is to understand the reaction of real estate prices to changes in different factors. In order to achieve this, a previously developed system dynamics model of real estate prices in Istanbul has been used (Özbaş and Özgün, 2005). The model has been developed and scenario analysis is carried out to some extent. However, a structured experimental analysis of the model und...

Uncertainty, robustness, and flexibility are three of the issues widely viewed as central to the field of complex engineered systems. A key challenge is to make the consideration of these issues more quantitative and theoretically sound. This paper presents a detailed technical analysis of one question inter-relating all three issues. How can we quantify the benefits of flexibility in the desig...