This dissertation aims to bridge the gap between validity theory and the practice of validation. The dissertation employs a three-article approach. Following the introduction in Chapter I, three independent manuscripts representing three empirical studies are presented (i.e., Chapters II - IV). Each chapter is a stand-alone publishable manuscript,…

Human beings depend on a set of benefits that emerge from functioning ecosystems, termed Ecosystem Services (ES), and make decisions in everyday life that affect these ES. Recent advancements in science have led to an increasingly sophisticated understanding of ES and how they can be used to inform environmental decision-making. Following suit, US…

The field of evaluation is at a critical juncture as it faces new scrutiny and questions about what constitutes good research and good practice. I argue in this study that if the discipline is to be rooted in a sound empirical foundation, we need a clear understanding of key terms employed by scholars and practitioners alike. In particular,…