Legitimation of public policies that support the widespread plantings of transgenic crops presuppose, among other conditions, that evidence supports that there are no unmanageable environmental risks and there are no better ways to produce enough nourishing food that can dispense with the transgenics-oriented ways. This paper discusses: the kinds of scientific inquiry that are needed to address adequately, the connections between investigations of and , and how these investigations are related with controversial social values.A legitimação de políticas públicas que apóiam (...) o cultivo de lavouras transgênicas em larga escala pressupõe, entre outras condições, que os dados empíricos garantem não haver riscos ambientais não-administráveis e, a não-existência de modos melhores de produzir alimentos sem a utilização de técnicas transgênicas. O artigo discute: Os tipos de investigação científica necessários para um exame adequado da condição , como as investigações sobre e se relacionam entre si, e como tais investigações se relacionam com valores sociais controvertidos. (shrink)

Critical realists offer a set of philosophical underpinnings for social research. Critical realists also engage constructively with social theory, but they are more than just theorists. In this chapter I list and describe various innovative methodological contributions made in recent years by realists. I point out ways in which research methods (i.e. techniques) fit with particular methodological assertions. There is a historical legacy of empiricism which critical realists often use as a foil to make their own position more clear. However, (...) among realists, a wide variety of methods are used, and the range of realist methodological assumptions is wider than one might expect because of their efforts to work with social theory.The introduction to the chapter covers ontology as it relates to research methods. The second section of the review introduces retroduction, a major methodological starting-point common to most realists. The third section reviews concretely the realist debate over statistics and some realist contributions to qualitative methodology, qualitative methods, and action research as used by realists. The fourth section takes up the challenge of realist claims about knowledge (debates usually known as epistemology). An important aim in this chapter is to argue that 'factual' statements usually embody layers of meaning, and thus are contestable; that enquiry using quantitative methods can coherently be done from a realist perspective; and that among realists qualitative enquiry is a broad and useful set of methods which have made genuine innovations in methodological knowledge. Meta-critique and pluralism are widely-used realist contributions to the methods tool-basket in social science, and the realist approach to social statistics is a much better guide to how statistics is, in practice, done than any currently available empiricist quantitative textbook (Ron, 2002). However 'quantitative' research always rests upon conceptual, theoretical and qualitatively derived frameworks and therefore is derived from qualitative work, whereas the converse is not true; qualitative research does not require any quantitative research. In the current scene, mixed methods also play a key role as a growing area of research methods. In this way, within sections one and two, the reader is given an overview of Volume 1 of this collection. Sections two and three of this chapter review Volumes 2 and 3 (realist methods, and empirical examples, respectively). Section four reviews the epistemological theme that is at the core of Volume 4. This introduction thus roughly parallels the contents of the rest of the volumes. (shrink)

It has been proposed that the policies and practices of food sovereignty, unlike those of today's hegemonic food/agricultural system, provide the means for satisfying and safeguarding the right to food security for everyone everywhere. My principal objective in this article, which gains its significance in the light of an explanatory critique of the current system, is to explore how scientific research — using what kinds of methodologies, and building on experiences of what and of whom? — can constructively inform these (...) practices and policies, and contribute towards appraising this proposal. (shrink)

Indigenous critiques of postcolonialism are as diverse as First Nations or Original Peoples communities themselves. Yet, within that diversity, there is often claimed to be a set of core universal teachings. My article engages this field in a three-step process that begins with examining the incorporation of two Indigenous critiques into a Handbook of Qualitative Research edited by Norman Denzin and Yvonna Lincoln. Focusing on justice through their lens of an ethics and politics of interpretation, Denzin and Lincoln simultaneously reject (...) much of what they claim critical realism advocates. They then deny any significant emancipatory potential to critical realism. This article immanently critiques their denial. In doing so it argues a case, on the one hand, for the explanatory potential of dialectical critical realism and the philosophy of meta-Reality both generally and in the case of postcolonialism as decolonizing praxis. On the other hand, viewing Indigenous critiques within an interpretive paradigm risks ensnaring them within modernist dualist categories, postmodernist unconstrained deconstruction or poststructuralist formless flux. Such a reading thus restricts their capacity to contribute to depth-totalizing praxis. I introduce a critical realist reading of Indigenous critiques and conclude that the political programme of emancipation is strengthened through an interweaving of critical realism and Indigenous political philosophy. (shrink)