Text of a lecture describing intent and results of a work-supported Experiment in employment creation for long term unemployed in the USA - analyses effects on post-programme employment and wages.

Laboratory Experiments in the Social Sciences is the only book providing core information for researchers about the ways and means to conduct experiments. Its comprehensive regard for laboratory experiments encompasses "how-to explanations, investigations of philosophies and ethics, explorations of experiments in specific social science disciplines, and summaries of both the history and future of social science laboratories. No other book offers such a direct avenue to enlarging our knowledge in the social sciences.This collection of original chapters combines instructions and advice about the design of laboratory experiments in the social sciences with the array of other issues. While there are books on experimental design and chapters in more general methods books on design, theory, and ethical issues, no other book attempts to discuss the fundamental ideas of the philosophy of science or lays out the methods comprehensively or in such detail. Experimentation has recently prospered because of increasing interest in cross-disciplinary syntheses, and this book of advice, guidelines, and observations underline its potential and increasing importance.· Provides a comprehensive summary of issues in social science experimentation, from ethics to design, management, and financing· Offers "how-to" explanations of the problems and challenges faced by everyone involved in social science experiments· Pays attention to both practical problems and to theoretical and philosophical arguments· Defines commonalities and distinctions within and among experimental situations across the social sciences

In the Spring of 1997, a remarkable group of social psychologists came together at Yosemite National Park to reflect upon the field which they have been so instrumental in creating. This edited collection brings together the reflections of the nine scholars who spoke at the Yosemite conference that day and marks the 100th anniversary of Tripplet's seminal study of bicycle racers—an experiment which has often been cited as the beginning of modern experimental social psychology. The contributors: Elliot Aronson, Leonard Berkowitz, Morton Deutsch, Harold Gerard, Harold Kelley, Albert Pepitone, Bertram Raven, Robert Zajonc, and Philip Zimbardo have not only observed the development of this burgeoning discipline, collectively, they have played an essential role in crafting its young legacy.The book begins with personal histories of the researchers. Being that these personal histories are, in fact, closely connected to the most significant people, laboratories and conceptual trends of the field, these reminiscences are much more than simply histories of the course of particular individuals' lives; they are at the same time histories of the discipline itself. Subsequent chapters turn to the field's historical roots: its origins, course of theories, methods, and approaches. But all chapters share a common theme: an examination of the ways that the lives and experiences of social psychology's most prominent living scholars have helped to shape the history of the field itself.

Handbook of Field Experiments provides tactics on how to conduct experimental research, also presenting a comprehensive catalog on new results from research and areas that remain to be explored. This updated addition to the series includes an entire chapters on field experiments, the politics and practice of social experiments, the methodology and practice of RCTs, and the econometrics of randomized experiments. These topics apply to a wide variety of fields, from politics, to education, and firm productivity, providing readers with a resource that sheds light on timely issues, such as robustness and external validity. Separating itself from circumscribed debates of specialists, this volume surpasses in usefulness the many journal articles and narrowly-defined books written by practitioners. - Balances methodological insights with analyses of principal findings and suggestions for further research - Appeals broadly to social scientists seeking to develop an expertise in field experiments - Strives to be analytically rigorous - Written in language that is accessible to graduate students and non-specialist economists

In recent years, social scientists have engaged in a deep debate over the methods appropriate to their research. Their long reliance on passive observational collection of information has been challenged by proponents of experimental methods designed to precisely infer causal effects through active intervention in the social world. Some scholars claim that field experiments represent a new gold standard and the best way forward, while others insist that these methods carry inherent inconsistencies, limitations, or ethical dilemmas that observational approaches do not. This unique collection of essays by the most influential figures on every side of this debate reveals its most important stakes and will provide useful guidance to students and scholars in many disciplines.

Once primarily used in medical clinical trials, random assignment experimentation is now accepted among social scientists across a broad range of disciplines. The technique has been used in social experiments to evaluate a variety of programs, from microfinance and welfare reform to housing vouchers and teaching methods. How did randomized experiments move beyond medicine and into the social sciences, and can they be used effectively to evaluate complex social problems? Fighting for Reliable Evidence provides an absorbing historical account of the characters and controversies that have propelled the wider use of random assignment in social policy research over the past forty years. Drawing from their extensive experience evaluating welfare reform programs, noted scholar practitioners Judith M. Gueron and Howard Rolston portray randomized experiments as a vital research tool to assess the impact of social policy. In a random assignment experiment, participants are sorted into either a treatment group that participates in a particular program, or a control group that does not. Because the groups are randomly selected, they do not differ from one another systematically. Therefore any subsequent differences between the groups can be attributed to the influence of the program or policy. The theory is elegant and persuasive, but many scholars worry that such an experiment is too difficult or expensive to implement in the real world. Can a control group be truly insulated from the treatment policy? Would staffers comply with the random allocation of participants? Would the findings matter? Fighting for Reliable Evidence recounts the experiments that helped answer these questions, starting with the income maintenance experiments and the Supported Work project in the 1960s and 1970s. Gueron and Rolston argue that a crucial turning point came during the 1980s, when Congress allowed states to experiment with welfare programs and foundations, states, and the federal government funded larger randomized trials to assess the impact of these reforms. As they trace these historical shifts, Gueron and Rolston discuss the ways that strategies for resolving theoretical and practical problems were developed, and they highlight the strict conditions required to execute a randomized experiment successfully. What emerges is a nuanced portrait of the potential and limitations of social experiments to advance empirical knowledge. Weaving history, data analysis and personal experience, Fighting for Reliable Evidence offers valuable lessons for researchers, policymakers, funders, and informed citizens interested in isolating the effect of policy initiatives. It is an essential primer on welfare policy, causal inference, and experimental designs.

The essays in this book extend and elaborate on many of the important ideas Solow has either originated or developed in the past three decades.