Donald Campbell: the Accidental Evaluator

Industrial Productivity: New Perspectives for a Traditionally Trained Evaluator

OBJECTIVE The objective of this paper is to provide a personal account of how my work in evaluation has changed over the years and how, despite the changes, essential similarities remain. I began my career in evaluation in a rather traditional mode, trained at Northwestern in the days of Donald Campbell, Lee Sechrest, Bob Boruch, Tom Cook, Paul Wortman and the rest of the original Northwestern ...

Using an Evaluator Fixed Structure Learning Automata in Sampling of Social Networks

Social networks are streaming, diverse and include a wide range of edges so that continuously evolves over time and formed by the activities among users (such as tweets, emails, etc.), where each activity among its users, adds an edge to the network graph. Despite their popularities, the dynamicity and large size of most social networks make it difficult or impossible to study the entire networ...

Evolution : The Darwinian Theory of Social Change , An Homage to Donald

One of the earliest and most influential papers applying Darwinian theory to human cultural evolution was Donald T. Campbell’s paper “Variation and Selective Retention in Sociocultural Systems.” Campbell’s programmatic essay appeared as a chapter in a book entitled Social Change in Developing Areas (Barringer et al., 1965). It sketched a very ambitious project to apply Darwinian principles to t...

Earth-Based Radar Observations of Venus PDS Archive Description

Nutritional Requirements of Soybean Cyst Nematodes