12 results on '"Hypotheses"'
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2. Queries in early-modern English science.
- Author
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Yeo, Richard
- Subjects
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INFORMATION-seeking behavior , *TECHNICAL writing - Abstract
The notion of a "query" occurred in legal, medical, theological and scientific writings during the early modern period. Whereas the "questionary" (from c. 1400s) sought replies from within a doctrine (such as Galenic medicine), in the 1600s the query posed open-ended inquiries, seeking empirical information from travellers, explorers and others. During the 1660s in Britain, three versions of the query (and lists of queries) emerged. Distinctions need to be made between queries seeking information via observation and those asking for experimentation, and between those aiming to keep theory to one side and those that framed theoretical conjectures. My examples are drawn from the work of the Royal Society of London (founded 1660) and from some of its leading members, especially Robert Boyle, Robert Hooke and Isaac Newton. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
3. Common errors of interpretation in biostatistics.
- Author
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Arreola, Elsa Vazquez, Irimata, Kyle, and Wilson, Jeffrey R.
- Subjects
- *
BIOMETRY , *HYPOTHESIS , *LOGISTIC regression analysis - Abstract
What do we wish to investigate? While this may be a common question in research, it does not always come with straightforward answers. This article reviews data-driven methods of collection, questions asked and questions answered, and the myriad of different conclusions that may result. We examine differences in answers to questions based on independent versus correlated observations, bivariate versus conditional associations, relations versus extrapolation, and single membership versus multiple membership modeling. Regardless of the issue, these differences are usually not due to so-called bad data or due to bad models; they are usually due to the investigators misinterpreting the answers that were given. Most importantly, one cannot ask a question and obtain an answer without understanding the data structure, its size and its representativeness. Simply stated, the fact that I went to the store and bought an outfit does not mean the outfit is appropriate for the event. The answers obtained may not be answering the question of interest. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
4. Joseph Priestley as an heir of Newton.
- Author
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Taranto, Pascal
- Subjects
- *
MATERIALISM , *HYPOTHESIS , *EMPIRICISM - Abstract
Like most Enlightenment philosophers, Priestley acknowledges his debt to Newton. However, despite his mentor's prohibition against "making hypotheses", in the 1770s, he embarked on a surprising metaphysical epic that led him, the theologian and scientist, to develop in his Disquisitions a bold system that articulated materialism, necessity and Socinianism. This synthesis constitutes the originality of a thinker who wanted to reapprehend science, metaphysics and theology together at the very moment when their dispersion seemed inevitable (and to give them an educational and political extension). It is based on a monistic ontology to which Priestley did not hesitate to give the unexpected name of materialism, at the risk of a number of misunderstandings, while he claims, much to the dismay of Reid, to closely follow the method of Newton. This paper will focus on the relation between Priestley and Newton's ambiguous inheritance. What is Priestley's "science" made of? What is its relationship to Newton and his "rules", to mathematics, to the theory of language, to the so-called "analysis and synthesis method", to Boscovich? How important is his claim for hypotheses and metaphysics? If Priestley indeed was a Newtonian, he surely was an unorthodox one. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
5. The theoretical basis of the Conversational Model of Therapy.
- Author
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Guthrie, Else and Moorey, Jim
- Subjects
- *
COGNITIVE therapy , *PATIENT-professional relations , *PSYCHODYNAMIC psychotherapy , *MATHEMATICAL models of psychology - Abstract
The Conversational Model of Therapy, which is also known as Psychodynamic-Interpersonal Therapy is an evidence-based psychological treatment. The model has a set of distinctive therapist behaviours, which can be taught and learnt in a short space of time. Although the model can be practised without an appreciation of the theory which underpins it, the theoretical basis of the model is rooted in psychodynamic ideas, and it shares many common theoretical approaches with other psychodynamic models. In this article, we describe the theoretical underpinnings of the model, include a description of basic model behaviours, an explanation of why these behaviours are important, and how they directly relate to and are derived from the theoretical stance. We also provide a case example, and show why the model can be practised without detailed theoretical knowledge to good effect, if its common guiding principles are followed. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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6. Generating Hypotheses and Upper-Bound Effect Sizes Using a Large Number of School Characteristics and Student Outcomes.
- Author
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Long, Mark C.
- Subjects
ACADEMIC achievement ,HIGH school students ,VOCATIONAL education ,ACHIEVEMENT tests ,EDUCATIONAL tests & measurements - Abstract
Using a “naïve” specification, this paper estimates the relationship between 36 high school characteristics and 24 student outcomes controlling for students' pre-high school characteristics. The goal of this exploration is not to generate casual estimates, but rather to: (a) compare the size of the relationships to determine which inputs seem most promising and to identify which student outcomes appear most susceptible to being affected; (b) obtain likely upper-bound effect sizes that are useful information for power analyses used to establish minimum sample sizes for more robust designs capable of revealing causal impacts; and (c) illustrate how small effects over many outcomes (which are cumulatively important) can be easily missed. I find that most of the 36 inputs appear to have affected more outcomes than one would expect by chance, but that the apparent effects were generally small. Further, I find a higher frequency of large and significant apparent effects on educational achievement and attainment outcomes than labor market and other outcomes for young adults. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
- Full Text
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7. Corporate Communication or McCommunication? Considering a McDonaldization of Corporate Communication Hypothesis.
- Author
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Verhoeven, Piet
- Subjects
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CORPORATE communications , *MCDONALDIZATION of society , *BUSINESS communication , *CONVENIENCE foods , *STAKEHOLDERS - Abstract
In this essay the perspective of Ritzer'sMcDonaldization of Society Thesisis the starting point for developing hypotheses about corporate communication (CorpCom). The central idea of McDonaldization is that increasing numbers of organizations are run as fast food restaurants, focusing on: efficiency, calculability, predictability, and control of people. That produces a form of rationality that becomes irrational. It is hypothesized that CorpCom is an ally of McDonaldization and the more the principles of McDonaldization are applied the more McDonaldized CorpCom becomes. This “McCommunication” could be less effective in gaining identification, support and trust from stakeholders than non-McDonaldized CorpCom. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
8. An evolutionary algorithm for abductive reasoning.
- Author
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Romdhane, L.B. and Ayeb, B.
- Subjects
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GENETIC algorithms , *LEGAL reasoning , *COMBINATORIAL optimization , *INFORMATION theory , *EVOLUTIONARY theories - Abstract
Abductive reasoning (or abduction) is the process of inferring hypotheses from observed data using a certain ‘knowledge’ encoded in the form of inference rules (or causal relations). Many important kinds of intellectual tasks, including medical diagnosis, fault diagnosis, scientific discovery, legal reasoning, and natural language understanding have been characterised as abduction. Unfortunately, abduction is 𝒩𝒫-hard. Genetic algorithms and biologically motivated computational paradigms inspired by the natural evolution turned out to be efficient in solving many hard problems while other existing approaches failed to solve in general. In this article, we present a genetic algorithm called HAKIM, for solving abduction problems. We encode an explanation in a chromosome-like structure, where every gene models a possible single hypothesis. Thereafter, we develop a fitness function that characterises the overall ‘quality’ of a chromosome representing an explanation; and then use standard genetic operators to compute a set of hypotheses that best explains the observed data. Simulation results on large-scale medical problems reveal the good performance of our model HAKIM. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
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9. Conjecturing from consequences.
- Author
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Trillas, Enric, Mas, Margarita, Monserrat, Miquel, and Torrens, Joan
- Subjects
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HUMAN behavior , *HYPOTHESIS , *REASONING , *THEORY of knowledge , *ARTIFICIAL intelligence , *COMMON sense - Abstract
This paper deals with a more general way of defining conjectures than that presented in Trillas et al. Here conjectures are defined once an operator of consequences in the sense of Tarski is given, and like in Trillas et al. they result classified in consequences, hypotheses and speculations. With all that, it appears for the first time the actually non-surprising idea that a formalization of deduction seems to be required previously to formalize induction and abduction. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
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10. The Analysis, Interpretation, and Presentation of Quality of Life Data.
- Author
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Stephens, Richard
- Subjects
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QUALITY of life , *CLINICAL trials , *DATA analysis , *DESIGN , *QUESTIONNAIRES - Abstract
All too often in clinical trials the assessment of quality of life is seen as a bolt-on study. Consequently insufficient consideration is often given to its design, collection, analysis and presentation, and its impact on the trial results and on clinical practice is minimal. In many trials quality of life is a key endpoint, and it is vital that quality of life expertise is involved as soon as possible in the design. Setting a priori quality of life hypotheses will focus the decisions regarding which questionnaire to use, when to administer it, the sample size required, and the primary analyses. Nevertheless quality of life data are complex, and require much skill in determining how to deal with multi-dimensional and longitudinal data, much of which is often missing. There are no agreed standard ways of analysing and presenting quality of life data, but there are guidelines, which if followed, will add transparency to the way results have been calculated. Understanding the impact of treatments on their quality of life is vital to patients, and it is up to us, as statisticians and trialists, to present the data as clearly as we can. [ABSTRACT FROM AUTHOR]
- Published
- 2004
- Full Text
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11. The Impact of Hospital Restructuring on Social Work Services: A Case Study of a Large, University-Affiliated Hospital in Canada.
- Author
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Michalski, Joseph H., Creighton, Elizabeth, and Jackson, Linda
- Subjects
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CORPORATE reorganizations , *SOCIAL services , *SOCIAL workers , *JOB satisfaction , *UNIVERSITY hospitals - Abstract
The study investigates the impact of organizational restructuring on social work practice at a large, university-affiliated hospital. The article first reviews relevant literature on the patient-focused care model and presents an overview of the study setting. Several hypotheses are then presented that informed the research process. Workload measurement, interview, and questionnaire data are analyzed to test these hypotheses. The results indicate that the shift to program management has had some intended effects, particularly regarding increases in direct services supporting patients. Social workers reported somewhat lower levels of job satisfaction than expected, which partly reflects the dismantling of the professional infrastructure. Finally, the authors discuss implications for the future of the social work profession under the program management model. [ABSTRACT FROM AUTHOR]
- Published
- 1999
12. A CRITIQUE OF SOME HYPOTHESES RELATING TO THE HETEROGENEITY OF THE HIGH-SULPHUR PROTEINS OF WOOL.
- Author
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Lindley, H., Gillespie, J. M., and Rowlands, R. J.
- Subjects
WOOL textiles ,PROTEINS ,MOLECULAR weights ,AMINO acid separation ,TEXTILES ,KERATIN ,TEXTILE fibers ,TEXTILE chemistry ,TEXTILE industry - Abstract
Joubert and Burns prepared a large number of fractions from the high-sulphur proteins of wool and estimated their molecular weights and amino-acid compositions. Their data have been re-examined in order to look for statistically significant interrelations between amino acids and between the proportion of various amino acids and molecular weight. Statistical analysis of the data is also used to examine the credibility of some hypotheses concerning the mechanism of keratin biosynthesis and to provide further evidence for the existence of families of proteins within the high-sulphur fractions of wool. [ABSTRACT FROM AUTHOR]
- Published
- 1970
- Full Text
- View/download PDF
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