Family theory and the scientific method

The evolution of family interactional research reveals a transformation from the theoretical concerns of a novel cybernetic paradigm to methodological problems of a prior mechanistic one. This change can be understood, within a cybernetic perspective, as an example of the characteristic functioning of adaptive systems attempting to maintain themselves unchanged under changed circumstances. A turn to a focus on method results in theoretical self-correction and the implicit retention of a mechanistic paradigm. This eliminates those most novel aspects of family interactional research that suggested the beginning of a cybernetic paradigm. A mechanistic methodology for family interaction research can be understood as an analogue to ritual in social systems. A primary attribute of ritual, sanctity, self-reflexively defines certain basic premises as unquestionable. By this, it regulates the beliefs of those who act it out, and eliminates the most radical novelty that confronts these beliefs. The evolution of family interactional research and its changing relationship to its methodology is an example of this process, the introduction and rejection of novelty by self-regulating systems. In this case, a challenge to the basic premises of a mechanistic paradigm is subverted, using its method as the arbitrator of validity in family interactional research.     

A “misrepresentation” of method as theory : Reply

Previous studies on the development of problem-solving skills in compensation tasks suggest that sequential decision theory more accurately describes the earlier phases of development than information integration theory. Compared to information integration theory, sequential decision theory appears to provide a more valid representation of children's and adults' processing of simpler compensation problems. On more developmentally advanced compensation problems, adults appear to use a variety of strategies. Information integration is capable of describing many of these patterns accurately. However, detailed analyses of performances by children and adults indicate that processing compensation problems by algebraic integration is the exception, rather than the general rule.     

The value of children: theory and method

Psychological research into the determinants of family size pertains to the motivations connected with childbearing in general and to those relating to specific numbers of children or family size. 1 model defines the variables affecting such motivations as: 1) the value of children; 2) alternate sources of value; 3) costs, 4) barriers, and 5)facilitators. An ongoing cross cultural study is discussed and the questionnaires used in the study as well as the preliminary results are given. It is felt that the knowledge gained through such research will help in the design of social policies that influence couples to regulate family size to levels that are congruent with personal desires as well as societal goals.     

Sorting out theory from method and vice versa

This paper takes up the question of free will in behaviour, what it can mean, and how it might be said to occur. The case is made that, thanks to psychology's commitment to a 17th century conception of natural science, it has been effectively insulated from putting teleology to a proper empirical test. After presenting a justification and definition of free will in terms of the human being's telosponsive capacities, the paper closes by surveying aspects of the psychological literature which have gathered data relating to telic behaviour only to explain them away via traditional nontelic “scientific” theories.     

An abductive theory of scientific method

A broad theory of scientific method is sketched that has particular relevance for the behavioral sciences. This theory of method assembles a complex of specific strategies and methods that are used in the detection of empirical phenomena and the subsequent construction of explanatory theories. A characterization of the nature of phenomena is given, and the process of their detection is briefly described in terms of a multistage model of data analysis. The construction of explanatory theories is shown to involve their generation through abductive, or explanatory, reasoning, their development through analogical modeling, and their fuller appraisal in terms of judgments of the best of competing explanations. The nature and limits of this theory of method are discussed in the light of relevant developments in scientific methodology.     

Spacetime theory as physical geometry

Discussions of the metaphysical status of spacetime assume that a spacetime theory offers a causal explanation of phenomena of relative motion, and that the fundamental philosophical question is whether the inference to that explanation is warranted. I argue that those assumptions are mistaken, because they ignore the essential character of spacetime theory as a kind of physical geometry. As such, a spacetime theory does notcausally explain phenomena of motion, but uses them to construct physicaldefinitions of basic geometrical structures by coordinating them with dynamical laws. I suggest that this view of spacetime theories leads to a clearer view of the philosophical foundations of general relativity and its place in the historical evolution of spacetime theory. I also argue that this view provides a much clearer and more defensible account of what is entailed by realism concerning spacetime.I would like to thank William Demopoulos and Michael Friedman for their comments on earlier drafts. I also thank the anonymous referees forErkenntnis for their suggestions. Work on this paper was supported by the Social Sciences and Humanities Research Council of Canada.     

Set theory as modal logic

A logical systemBM ⁺ is proposed, which, is a prepositional calculus enlarged with prepositional quantifiers and with two modal signs, and These modalities are submitted to a finite number of axioms. is the usual sign of necessity, corresponds to transmutation of a property (to be white) into the abstract property (to be the whiteness). An imbedding of the usual theory of classesM intoBM ⁺ is constructed, such that a formulaA is provable inM if and only if(A) is provable inBM ⁺. There is also an inverse imbedding with an analogous property.