Results for 'Bayes tests, Sharp hypotheses, Significance tests.'

812 found
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  1.  31
    Can a Significance Test Be Genuinely Bayesian?Julio Michael Stern, Carlos Alberto de Braganca Pereira & Sergio Wechsler - 2008 - Bayesian Analysis 3 (1):79-100.
    The Full Bayesian Significance Test, FBST, is extensively reviewed. Its test statistic, a genuine Bayesian measure of evidence, is discussed in detail. Its behavior in some problems of statistical inference like testing for independence in contingency tables is discussed.
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  2.  11
    Significance Tests, Belief Calculi, and Burden of Proof in Legal and Scientific Discourse.Julio Michael Stern - 2003 - Frontiers in Artificial Intelligence and Applications 101:139-147.
    We review the definition of the Full Bayesian Significance Test (FBST), and summarize its main statistical and epistemological characteristics. We review also the Abstract Belief Calculus (ABC) of Darwiche and Ginsberg, and use it to analyze the FBST’s value of evidence. This analysis helps us understand the FBST properties and interpretation. The definition of value of evidence against a sharp hypothesis, in the FBST setup, was motivated by applications of Bayesian statistical reasoning to legal matters where the (...) hypotheses were defendants statements, to be judged according to the Onus Probandi juridical principle. (shrink)
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  3.  20
    Evidence and Credibility: Full Bayesian Significance Test for Precise Hypotheses.Julio Michael Stern & Carlos Alberto de Braganca Pereira - 1999 - Entropy 1 (1):69-80.
    A Bayesian measure of evidence for precise hypotheses is presented. The intention is to give a Bayesian alternative to significance tests or, equivalently, to p-values. In fact, a set is defined in the parameter space and the posterior probability, its credibility, is evaluated. This set is the “Highest Posterior Density Region” that is “tangent” to the set that defines the null hypothesis. Our measure of evidence is the complement of the credibility of the “tangent” region.
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  4.  20
    A Straightforward Multiallelic Significance Test for the Hardy-Weinberg Equilibrium Law.Julio Michael Stern, Marcelo de Souza Lauretto, Fabio Nakano, Silvio Rodrigues Faria & Carlos Alberto de Braganca Pereira - 2009 - Genetics and Molecular Biology 32 (3):619-625.
    Much forensic inference based upon DNA evidence is made assuming Hardy-Weinberg Equilibrium (HWE) for the genetic loci being used. Several statistical tests to detect and measure deviation from HWE have been devised, and their limitations become more obvious when testing for deviation within multiallelic DNA loci. The most popular methods-Chi-square and Likelihood-ratio tests-are based on asymptotic results and cannot guarantee a good performance in the presence of low frequency genotypes. Since the parameter space dimension increases at a quadratic rate on (...)
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  5.  23
    The Full Bayesian Significance Test for Mixture Models: Results in Gene Expression Clustering.Julio Michael Stern, Marcelo de Souza Lauretto & Carlos Alberto de Braganca Pereira - 2008 - Genetics and Molecular Research 7 (3):883-897.
    Gene clustering is a useful exploratory technique to group together genes with similar expression levels under distinct cell cycle phases or distinct conditions. It helps the biologist to identify potentially meaningful relationships between genes. In this study, we propose a clustering method based on multivariate normal mixture models, where the number of clusters is predicted via sequential hypothesis tests: at each step, the method considers a mixture model of m components (m = 2 in the first step) and tests if (...)
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  6.  18
    Unit Roots: Bayesian Significance Test.Julio Michael Stern, Marcio Alves Diniz & Carlos Alberto de Braganca Pereira - 2011 - Communications in Statistics 40 (23):4200-4213.
    The unit root problem plays a central role in empirical applications in the time series econometric literature. However, significance tests developed under the frequentist tradition present various conceptual problems that jeopardize the power of these tests, especially for small samples. Bayesian alternatives, although having interesting interpretations and being precisely defined, experience problems due to the fact that that the hypothesis of interest in this case is sharp or precise. The Bayesian significance test used in this article, for (...)
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  7.  14
    Cointegration: Bayesian Significance Test Communications in Statistics.Julio Michael Stern, Marcio Alves Diniz & Carlos Alberto de Braganca Pereira - 2012 - Communications in Statistics 41 (19):3562-3574.
    To estimate causal relationships, time series econometricians must be aware of spurious correlation, a problem first mentioned by Yule (1926). To deal with this problem, one can work either with differenced series or multivariate models: VAR (VEC or VECM) models. These models usually include at least one cointegration relation. Although the Bayesian literature on VAR/VEC is quite advanced, Bauwens et al. (1999) highlighted that “the topic of selecting the cointegrating rank has not yet given very useful and convincing results”. The (...)
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  8.  17
    Cognitive Constructivism, Eigen-Solutions, and Sharp Statistical Hypotheses.Julio Michael Stern - 2007 - Cybernetics and Human Knowing 14 (1):9-36.
    In this paper epistemological, ontological and sociological questions concerning the statistical significance of sharp hypotheses in scientific research are investigated within the framework provided by Cognitive Constructivism and the FBST (Full Bayesian Significance Test). The constructivist framework is contrasted with the traditional epistemological settings for orthodox Bayesian and frequentist statistics provided by Decision Theory and Falsificationism.
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  9.  10
    Testing Significance in Bayesian Classifiers.Julio Michael Stern & Marcelo de Souza Lauretto - 2005 - Frontiers in Artificial Intelligence and Applications 132:34-41.
    The Fully Bayesian Significance Test (FBST) is a coherent Bayesian significance test for sharp hypotheses. This paper explores the FBST as a model selection tool for general mixture models, and gives some computational experiments for Multinomial-Dirichlet-Normal-Wishart models.
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  10.  14
    Constructive Verification, Empirical Induction, and Falibilist Deduction: A Threefold Contrast.Julio Michael Stern - 2011 - Information 2 (4):635-650.
    This article explores some open questions related to the problem of verification of theories in the context of empirical sciences by contrasting three epistemological frameworks. Each of these epistemological frameworks is based on a corresponding central metaphor, namely: (a) Neo-empiricism and the gambling metaphor; (b) Popperian falsificationism and the scientific tribunal metaphor; (c) Cognitive constructivism and the object as eigen-solution metaphor. Each of one of these epistemological frameworks has also historically co-evolved with a certain statistical theory and method for testing (...)
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  11.  14
    Language and the Self-Reference Paradox.Julio Michael Stern - 2007 - Cybernetics and Human Knowing 14 (4):71-92.
    Heinz Von Forester characterizes the objects “known” by an autopoietic system as eigen-solutions, that is, as discrete, separable, stable and composable states of the interaction of the system with its environment. Previous articles have presented the FBST, Full Bayesian Significance Test, as a mathematical formalism specifically designed to access the support for sharp statistical hypotheses, and have shown that these hypotheses correspond, from a constructivist perspective, to systemic eigen-solutions in the practice of science. In this article several issues (...)
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  12.  17
    FBST for Covariance Structures of Generalized Gompertz Models.Julio Michael Stern & Viviane Teles de Lucca Maranhao - 2012 - AIP Conference Proceedings 1490:202-211.
    The Gompertz distribution is commonly used in biology for modeling fatigue and mortality. This paper studies a class of models proposed by Adham and Walker, featuring a Gompertz type distribution where the dependence structure is modeled by a lognormal distribution, and develops a new multivariate formulation that facilitates several numerical and computational aspects. This paper also implements the FBST, the Full Bayesian Significance Test for pertinent sharp (precise) hypotheses on the lognormal covariance structure. The FBST’s e-value, ev(H), gives (...)
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  13.  87
    FBST for a Generalized Poisson Distribution.Julio Michael Stern, Paulo do Canto Hubert & Marcelo de Souza Lauretto - 2009 - AIP Conference Proceedings 1193:210-217.
    The Generalized Poisson Distribution (GPD) adds an extra parameter to the usual Poisson distribution. This parameter induces a loss of homogeneity in the stochastic processes modeled by the distribution. Thus, the generalized distribution becomes an useful model for counting processes where the occurrence of events is not homogeneous. This model creates the need for an inferential procedure, to test for the value of this extra parameter. The FBST (Full Bayesian Significance Test) is a Bayesian hypotheses test procedure, capable of (...)
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  14.  20
    FBST for Mixture Model Selection.Julio Michael Stern & Marcelo de Souza Lauretto - 2005 - AIP Conference Proceedings 803:121-128.
    The Fully Bayesian Significance Test (FBST) is a coherent Bayesian significance test for sharp hypotheses. This paper proposes the FBST as a model selection tool for general mixture models, and compares its performance with Mclust, a model-based clustering software. The FBST robust performance strongly encourages further developments and investigations.
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  15.  13
    Decoupling, Sparsity, Randomization, and Objective Bayesian Inference.Julio Michael Stern - 2008 - Cybernetics and Human Knowing 15 (2):49-68..
    Decoupling is a general principle that allows us to separate simple components in a complex system. In statistics, decoupling is often expressed as independence, no association, or zero covariance relations. These relations are sharp statistical hypotheses, that can be tested using the FBST - Full Bayesian Significance Test. Decoupling relations can also be introduced by some techniques of Design of Statistical Experiments, DSEs, like randomization. This article discusses the concepts of decoupling, randomization and sparsely connected statistical models in (...)
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  16.  15
    The Problem of Separate Hypotheses Via Mixtures Models.Julio Michael Stern, Marcelo de Souza Lauretto, Silvio Rodrigues Faria & Carlos Alberto de Braganca Pereira - 2007 - AIP Conference Proceedings 954:268-275.
    This article describes the Full Bayesian Significance Test for the problem of separate hypotheses. Numerical experiments are performed for the Gompertz vs. Weibull life span test.
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  17.  34
    A Weibull Wearout Test: Full Bayesian Approach.Julio Michael Stern, Telba Zalkind Irony, Marcelo de Souza Lauretto & Carlos Alberto de Braganca Pereira - 2001 - Reliability and Engineering Statistics 5:287-300.
    The Full Bayesian Significance Test (FBST) for precise hypotheses is presented, with some applications relevant to reliability theory. The FBST is an alternative to significance tests or, equivalently, to p-ualue.s. In the FBST we compute the evidence of the precise hypothesis. This evidence is the probability of the complement of a credible set "tangent" to the sub-manifold (of the para,rreter space) that defines the null hypothesis. We use the FBST in an application requiring a quality control of used (...)
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  18.  57
    Assessment of Students’ Attitude Towards Test-Taking in Secondary Schools in Afikpo Education Zone Ebonyi State, Nigeria.Valentine Joseph Owan, Bassey Asuquo Bassey & Mercy Bassey Ekpe - 2020 - American Journal of Creative Education 3 (1):1-9.
    Assessment of students’ attitudes towards test-taking in secondary schools in Afikpo Education Zone of Ebonyi State, Nigeria was the main thrust of this study. The study was guided by four null hypotheses in line with the ex-post facto research design. Proportionate stratified random sampling technique was employed in selecting a sample 1,276 respondents from a population of 12,763 students distributed across 43 public and 71 private secondary schools in the study area. Students’ Attitudes Towards Test-Taking Questionnaire (SATTQ) with Cronbach's alpha (...)
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  19. Interactive Effect of Gender, Test Anxiety, and Test Items Sequencing on Academic -Performance of SS3 Students in Mathematics in Calabar Education Zone, Cross River State, Nigeria.Valentine Joseph Owan, Bassey Asuquo Bassey & Etuk S. Ini - 2020 - American Journal of Creative Education 3 (1):21-31.
    The rationale of this study was to examine the interactive effect of gender, test anxiety, and test items sequencing on the academic performance in mathematics among SS3 students in Calabar Education Zone, Cross River State. Two formulated null hypotheses directed the study. The study adopted the quasi-experimental design. Simple random sampling technique was used in drawing a sample of 474 students from a population of 8,549 SS3 students. A Mathematics Achievement Test (MAT) and a Test Anxiety Scale (TAS) were used (...)
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  20.  15
    When to Adjust Alpha During Multiple Testing: A Consideration of Disjunction, Conjunction, and Individual Testing.Mark Rubin - 2021 - Synthese 199 (3-4):10969-11000.
    Scientists often adjust their significance threshold during null hypothesis significance testing in order to take into account multiple testing and multiple comparisons. This alpha adjustment has become particularly relevant in the context of the replication crisis in science. The present article considers the conditions in which this alpha adjustment is appropriate and the conditions in which it is inappropriate. A distinction is drawn between three types of multiple testing: disjunction testing, conjunction testing, and individual testing. It is argued (...)
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  21.  35
    Mode of Test Administration, Birth Variables, and Students’ Academic Achievement in Mathematics in Obubra Local Government Area of Cross River State, Nigeria.Valentine Joseph Owan, Jennifer Uzoamaka Duruamaku-Dim & Samuel Eneje - 2019 - Prestige Journal of Counselling Psychology 2 (2):60-77.
    This study assessed the mode of test administration, birth variables, and students’ academic performance in Mathematics in Obubra Local Government Area of Cross River State, Nigeria. The study was guided by three null hypotheses following a quasi- experimental research design. Simple random and purposive sampling techniques were employed in selecting a sample of 250 respondents from a population of 5,792 students. Birth Order Checklist (BOC) and Mathematics Achievement Test (MAT) were used for data collection. The experimental group was assigned to (...)
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  22. Administration of Punishment, Students’ Test Anxiety, and Performance in Mathematics in Secondary Schools of Cross River State, Nigeria.Valentine Joseph Owan, Eno Etudor-Eyo & Uwase Esuong Uwase - 2019 - International Journal of Academic Research in Business and Social Sciences 9 (6):415-430.
    This study assessed the administration of punishment, students’ test anxiety, and performance in mathematics in secondary schools of Cross River State. Three null hypotheses were formulated following a correlational research design. Proportionate stratified random sampling technique was employed in selecting a sample of 2,554 respondents representing 5% of the population of 51,097 junior secondary school students distributed across 271 public secondary schools in Cross River State. Administration of Punishment Questionnaire (APQ) designed by the researchers, Test Anxiety Inventory (TAI) developed by (...)
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  23. Poll Everywhere E-Learning Platform, Test Anxiety, and Undergraduates’ Academic Performance in Mathematics: Empirical Evidence From Nigeria.Valentine Joseph Owan, Bassey Asuquo Bassey, Garieth Omorobi Omorobi & Uwase Esuong Uwase - 2020 - American Journal of Social Sciences and Humanities 5 (1):141-150.
    The high rate of mathematics education students‟ academic performance in universities has become unbearable. In an attempt to proffer solution to this menace, this study assessed Poll Everywhere eLearning platform, test anxiety, and undergraduates‟ academic performance in Mathematics in Cross River State, Nigeria. The study adopted a quasi-experimental research one control group and one treatment group. The population of this study comprised all the fulltime regular undergraduates offering Education Mathematics in the Department of Science Education, University of Calabar, Calabar, Nigeria. (...)
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  24. The Possibility of Empirical Test of Hypotheses About Consciousness.Jean E. Burns - 1996 - In S. R. Hameroff, A. W. Kaszniak & A. C. Scott (eds.), Towards a Science of Consciousness. MIT Press. pp. 739--742.
    The possibility of empirical test is discussed with respect to three issues: (1) What is the ontological relationship between consciousness and the brain/physical world? (2) What physical characteristics are associated with the mind/brain interface? (3) Can consciousness act on the brain independently of any brain process?
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  25.  66
    Statistical Significance Testing in Economics.William Peden & Jan Sprenger - forthcoming - In Conrad Heilmann & Julian Reiss (eds.), The Routledge Handbook of the Philosophy of Economics.
    The origins of testing scientific models with statistical techniques go back to 18th century mathematics. However, the modern theory of statistical testing was primarily developed through the work of Sir R.A. Fisher, Jerzy Neyman, and Egon Pearson in the inter-war period. Some of Fisher's papers on testing were published in economics journals (Fisher, 1923, 1935) and exerted a notable influence on the discipline. The development of econometrics and the rise of quantitative economic models in the mid-20th century made statistical (...) testing a commonplace, albeit controversial tool within economics. -/- In the debate about significance testing, methodological controversies intertwine with epistemological issues and sociological developments. Our aim in this chapter is to expound these connections and to show how the use of, and the debate about, significance testing in economics differs from other social sciences, such as psychology. (shrink)
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  26.  12
    Full Bayesian Significance Test Applied to Multivariate Normal Structure Models.Marcelo de Souza Lauretto, Carlos Alberto de Braganca Pereira, Julio Michael Stern & Shelemiahu Zacks - 2003 - Brazilian Journal of Probability and Statistics 17:147-168.
    Abstract: The Pull Bayesian Significance Test (FBST) for precise hy- potheses is applied to a Multivariate Normal Structure (MNS) model. In the FBST we compute the evidence against the precise hypothesis. This evi- dence is the probability of the Highest Relative Surprise Set (HRSS) tangent to the sub-manifold (of the parameter space) that defines the null hypothesis. The MNS model we present appears when testing equivalence conditions for genetic expression measurements, using micro-array technology.
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  27.  15
    Genuine Bayesian Multiallelic Significance Test for the Hardy-Weinberg Equilibrium Law.Julio Michael Stern, Carlos Alberto de Braganca Pereira, Fabio Nakano & Martin Ritter Whittle - 2006 - Genetics and Molecular Research 5 (4):619-631.
    Statistical tests that detect and measure deviation from the Hardy-Weinberg equilibrium (HWE) have been devised but are limited when testing for deviation at multiallelic DNA loci is attempted. Here we present the full Bayesian significance test (FBST) for the HWE. This test depends neither on asymptotic results nor on the number of possible alleles for the particular locus being evaluated. The FBST is based on the computation of an evidence index in favor of the HWE hypothesis. A great deal (...)
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  28.  23
    Paraconsistent Sensitivity Analysis for Bayesian Significance Tests.Julio Michael Stern - 2004 - Lecture Notes in Artificial Intelligence 3171:134-143.
    In this paper, the notion of degree of inconsistency is introduced as a tool to evaluate the sensitivity of the Full Bayesian Significance Test (FBST) value of evidence with respect to changes in the prior or reference density. For that, both the definition of the FBST, a possibilistic approach to hypothesis testing based on Bayesian probability procedures, and the use of bilattice structures, as introduced by Ginsberg and Fitting, in paraconsistent logics, are reviewed. The computational and theoretical advantages of (...)
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  29.  26
    How to Do Things with Theory: The Instrumental Role of Auxiliary Hypotheses in Testing.Corey Dethier - 2021 - Erkenntnis 86 (6):1453-1468.
    Pierre Duhem’s influential argument for holism relies on a view of the role that background theory plays in testing: according to this still common account of “auxiliary hypotheses,” elements of background theory serve as truth-apt premises in arguments for or against a hypothesis. I argue that this view is mistaken. Rather than serving as truth-apt premises in arguments, auxiliary hypotheses are employed as “epistemic tools”: instruments that perform specific tasks in connecting our theoretical questions with the world but that are (...)
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  30.  58
    “Repeated Sampling From the Same Population?” A Critique of Neyman and Pearson’s Responses to Fisher.Mark Rubin - 2020 - European Journal for Philosophy of Science 10 (3):1-15.
    Fisher criticised the Neyman-Pearson approach to hypothesis testing by arguing that it relies on the assumption of “repeated sampling from the same population.” The present article considers the responses to this criticism provided by Pearson and Neyman. Pearson interpreted alpha levels in relation to imaginary replications of the original test. This interpretation is appropriate when test users are sure that their replications will be equivalent to one another. However, by definition, scientific researchers do not possess sufficient knowledge about the relevant (...)
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  31. Why Do We Need to Employ Bayesian Statistics and How Can We Employ It in Studies of Moral Education?: With Practical Guidelines to Use JASP for Educators and Researchers.Hyemin Han - 2018 - Journal of Moral Education 47 (4):519-537.
    ABSTRACTIn this article, we discuss the benefits of Bayesian statistics and how to utilize them in studies of moral education. To demonstrate concrete examples of the applications of Bayesian statistics to studies of moral education, we reanalyzed two data sets previously collected: one small data set collected from a moral educational intervention experiment, and one big data set from a large-scale Defining Issues Test-2 survey. The results suggest that Bayesian analysis of data sets collected from moral educational studies can provide (...)
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  32. Conflict Management Strategies and Secondary School Teachers’ Job Effectiveness in Obubra Local Government Area of Cross River State, Nigeria.Valentine Joseph Owan - 2018 - Dissertation, University of Calabar, Calabar, Nigeria
    The study investigated conflict management strategies and secondary school teachers’ job effectiveness in Obubra Local Government Area of Cross River State. Six null hypotheses were formulated to guide the study. The study adopted correlational and factorial research designs. Purposive sampling technique was used to select a sample of 222 teachers from a population of 352 secondary school teachers. Conflict Management Strategies Questionnaire (CMSQ) and Secondary School Teachers’ Job Effectiveness Questionnaire (SSTJEQ) were used respectively, as instruments for data collection. The hypotheses (...)
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  33. The Rules of Logic Composition for the Bayesian Epistemic E-Values.Wagner Borges & Julio Stern - 2007 - Logic Journal of the IGPL 15 (5-6):401-420.
    In this paper, the relationship between the e-value of a complex hypothesis, H, and those of its constituent elementary hypotheses, Hj, j = 1… k, is analyzed, in the independent setup. The e-value of a hypothesis H, ev, is a Bayesian epistemic, credibility or truth value defined under the Full Bayesian Significance Testing mathematical apparatus. The questions addressed concern the important issue of how the truth value of H, and the truth function of the corresponding FBST structure M, relate (...)
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  34.  91
    Personnel Management and Corrupt Academic Practices in Universities in Cross River State, Nigeria.Festus Obun Arop, Martin Akan Ekpang, Blessing Iheoma Nwannunu & Valentine Joseph Owan - 2018 - International Journal of Economics, Commerce and Management 6 (9):405-419.
    The study examined personnel management and corrupt academic practices in universities in Cross River State, Nigeria. In achieving this objective, two research questions and two null hypotheses were posed and formulated respectively, to guide the study. The study adopted a factorial research design, while the population of the study included all the academic staff and students from University of Calabar and Cross River University of Technology. A purposive sampling technique was employed to select 1200 students and 200 lecturers from both (...)
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  35. Management of School Related Variables and Teachers’ Job Effectiveness in Secondary Schools in Calabar South Local Government Area of Cross River State, Nigeria.Festus Obun Arop, Martin Akan Ekpang & Valentine Joseph Owan - 2018 - International Journal of Social Sciences and Management Research 4 (8):90-100.
    Management of school-related variables and teachers’ job effectiveness in secondary schools in Calabar South Local Government Area, Cross River State was the main thrust of this study. Four research questions were raised, and four hypotheses were formulated to direct the study. The descriptive survey design was adopted for the study while the total population of 208 secondary school teachers in Calabar South Local Government Area were selected for the study using census technique. A questionnaire titled “Management of School Related Variables (...)
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  36.  24
    Principals' Administrative Competence and Teachers' Work Performance in Secondary Schools in Calabar Education Zone of Cross River State, Nigeria.Valentine Joseph Owan & Judith Nonye Agunwa - 2019 - Humanities and Social Sciences Letters 7 (1):20-28.
    The focus of this study was to investigate "principals' administrative competence and teachers work performance" in Calabar Education zone. Four null hypotheses were tested in the course of the study. Correlational research design was adopted, while purposive sampling technique was used in selecting a sample of 800 teachers. Two instruments were used for data collection including "Principals' Administrative Competence Questionnaire (PACQ)," and Teachers' Work Performance Questionnaire (TWPQ)." Pearson Product Moment Correlation Analysis (r) and multiple regression (R) analysis were employed to (...)
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  37. Problems of School Management and Students' Academic Performance in Secondary Schools in Calabar Education Zone, Cross River State, Nigeria.Valentine Joseph Owan, Blessing Iheoma Nwannunu & Esther Chijioke Madukwe - 2018 - International Journal of Research and Innovation in Social Science (IJRISS) 2 (10):120-127.
    This study investigated problems of school management and secondary school students' academic performance in Calabar Education Zone of Cross River State. Two null hypotheses were formulated to guide the study. The study adopted an ex-post facto research design. Proportionate stratified sampling technique was employed in selecting a sample of 3616 students out of the population of 18, 078 students. "Problems of School Management Questionnaire (PSMQ)," and Senior Secondary Mathematics Achievement Test (SSMAT) were the instruments designed by the researcher, were used (...)
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  38. Administrators’ Conflict Management Strategies Utilization and Job Effectiveness of Secondary School Teachers in Obubra Local Government Area, Cross River State, Nigeria.Festus Obun Arop, Valentine Joseph Owan & Martin Akan Ekpang - 2018 - IIARD International Journal of Economics and Business Management 4 (7):11-21.
    The study investigated administrators’ conflict management strategies utilization and job effectiveness of secondary school teachers in Obubra Local Government Area, Cross River State, Nigeria. Two research questions and null hypotheses were developed to guide the study. The study adopted factorial research design. Census technique was used in selecting the entire population of 464 secondary school teachers in the area. Conflict Management Strategies Utilization Questionnaire (CMSUQ) and Secondary School Teachers’ Job Effectiveness Questionnaire (SSTJEQ) were used respectively, as instruments for data collection. (...)
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  39.  42
    Bayesian Test of Significance for Conditional Independence: The Multinomial Model.Julio Michael Stern, Pablo de Morais Andrade & Carlos Alberto de Braganca Pereira - 2014 - Entropy 16:1376-1395.
    Conditional independence tests have received special attention lately in machine learning and computational intelligence related literature as an important indicator of the relationship among the variables used by their models. In the field of probabilistic graphical models, which includes Bayesian network models, conditional independence tests are especially important for the task of learning the probabilistic graphical model structure from data. In this paper, we propose the full Bayesian significance test for tests of conditional independence for discrete datasets. The full (...)
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  40. Institutional Variables and the Supervision of Security in Public Secondary Schools in Cross River State.Festus Obun Arop & Valentine Joseph Owan - 2018 - International Journal of Innovation in Educational Management (IJIEM) 2 (1):1-11.
    The purpose of this paper was to examine institutional variables and the supervision of security in secondary schools in Cross River State. The study specifically sought to determine whether there was a significant influence of school population, school type and school location, on the supervision of security in public secondary schools in Cross River State. Three null hypotheses were formulated accordingly to guide the study. 360 students and 120 teachers resulting in a total of 480 respondents, constituted the sample for (...)
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  41.  53
    Practicum Exercise and the Attitudes of Pre-Service Educational Administrators in Cross River State.Festus Obun Arop, Ene Ogar Egbula & Valentine Joseph Owan - 2019 - International Journal of Innovation Management (IJIEM) 3 (1):9-19.
    This study was aimed at examining “practicum exercise and the attitudes of pre-service educational administrators in Cross River State.” Pre-administrators’ attitudes were assessed in the area of self-discipline, time management, and record keeping. Three null hypotheses formulated offered direction to the study. The study adopted a quasi-experimental research design. Pre-service administrators with practicum experience were the experimental group while those without practicum experience were the control group. Cluster and simple random sampling techniques were adopted in selecting 60 final year students (...)
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  42.  96
    Effective Communication Management and the Performance of Tertiary Institutions in Cross River State, Nigeria.Festus Obun Arop, Valentine Joseph Owan & Martin Akan Ekpang - 2018 - International Journal of Current Research 10 (7):72019-72023.
    The purpose of this study was to examine effective communication management and the performance of tertiary institutions in Cross River State. Three hypotheses were formulated to guide the study. The study adopted a correlational design and was conducted using Cross River State College of Education, Akamkpa as case study. A proportionate stratified random sampling technique was used to select 30 per cent each from a total of 176 academic staff and 215 Non-academic staff in the institution. A total of 53 (...)
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  43.  37
    Bayesian Evidence Test for Precise Hypotheses.Julio Michael Stern - 2003 - Journal of Statistical Planning and Inference 117 (2):185-198.
    The full Bayesian signi/cance test (FBST) for precise hypotheses is presented, with some illustrative applications. In the FBST we compute the evidence against the precise hypothesis. We discuss some of the theoretical properties of the FBST, and provide an invariant formulation for coordinate transformations, provided a reference density has been established. This evidence is the probability of the highest relative surprise set, “tangential” to the sub-manifold (of the parameter space) that defines the null hypothesis.
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  44. Prioritarianism for Global Health Investments: Identifying the Worst Off.Daniel Sharp & Joseph Millum - 2018 - Journal of Applied Philosophy:112-132.
    The available resources for global health assistance are far outstripped by need. In the face of such scarcity, many people endorse a principle according to which highest priority should be given to the worst off. However, in order for this prioritarian principle to be useful for allocation decisions, policy-makers need to know what it means to be badly off. In this article, we outline a conception of disadvantage suitable for identifying the worst off for the purpose of making health resource (...)
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  45. Assessing Theories, Bayes Style.Franz Huber - 2008 - Synthese 161 (1):89-118.
    The problem addressed in this paper is “the main epistemic problem concerning science”, viz. “the explication of how we compare and evaluate theories [...] in the light of the available evidence” (van Fraassen, BC, 1983, Theory comparison and relevant Evidence. In J. Earman (Ed.), Testing scientific theories (pp. 27–42). Minneapolis: University of Minnesota Press). Sections 1– 3 contain the general plausibility-informativeness theory of theory assessment. In a nutshell, the message is (1) that there are two values a theory should exhibit: (...)
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  46.  60
    School Hazards Management and Teachers’ Job Effectiveness in Secondary Schools in Ikom Local Government Area, Cross River State, Nigeria.Festus Obun Arop, Valentine Joseph Owan & Martin Akan Ekpang - 2018 - International Journal of Education and Evaluation 4 (9):38-49.
    This study assessed school hazards management and teachers' job effectiveness in secondary schools in Ikom Local Government Area of Cross River State. Four null hypotheses were formulated accordingly to guide the study. The design adopted for the study was ex-post facto research design. Census technique was employed in selecting the entire population of 551 teachers in the area. The instruments used for data collection were "School Hazards Management Questionnaire (SHMQ)" and "Teachers' Job Effectiveness Questionnaire (TJEQ)." Collected data were analysed using (...)
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  47.  55
    Comparative Assessment of the Implementation of Quality Assurance Mechanisms in Educational Management Programme of Universities in South-East Nigeria.Emmanuel Chidubem Asiegbu & Carol Obiageli Ezeugbor - 2018 - International Journal of Academic Multidisciplinary Research (IJAMR) 2 (5):7-14.
    Abstract: This study focused on comparative assessment of the implementation of quality assurance mechanisms in educational management programme of federal and state universities in south-east, Nigeria. Four research questions and four null hypotheses guided the study. The study was carried out in the eight government-owned (3 federal and 5 state) universities in south-east that run educational management programme. The study adopted a survey research design on a population of eight heads of department. A 44-item researcher constructed questionnaire was used to (...)
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  48.  27
    Evaluation of the Availability and Utilization Status of Texts in Core Subjects in Primary Schools’ Libraries.Valentine Joseph Owan, Daniel Clement Agurokpon & Abahcham Valentine Owan - 2022 - Library Philosophy and Practice (E-Journal) 2022:Article 6150.
    The study evaluated primary texts' availability and utilisation status in core subjects (English Language, Mathematics, Social Studies and Basic Science) in primary schools’ libraries in Obubra Local Government Area of Cross River State. The researchers formulated six null hypotheses to guide the study. The study adopted the descriptive survey research design. The target population of this study comprised a total of 30,036 teachers and pupils, distributed across the 73 public primary schools. A proportionate stratified sampling technique was used to select (...)
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  49.  30
    Vocational Training Duration and University Graduates’ Job Performance in Cross River State, Nigeria.Valentine Joseph Owan, Francisca N. Odigwe & Odim Otu Offem - 2018 - International Journal of Current Research 10 (7):72024-72028.
    This study focused specifically on determining the extent to which duration of vocational training influence university respectively. In achieving this, two research questions were raised and two research hypotheses were formulated to guide the study. The study adopted a descriptive survey design. The pop study include a total of 123 baking business and 208 computer business centres in the Area. Out of this population, a proportionate stratified sampling technique was used to select 10% resulting in the selection of 12 baking (...)
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  50.  77
    Tertiary Students’ Social Media Management Attitudes and Academic Performance in Cross River State.Festus Obun Arop, Judith Nonye Agunwa & Valentine Joseph Owan - 2019 - British International Journal of Education And Social Sciences 6 (3):48-52.
    This paper examined the relationship between tertiary students’ social media management attitudes and their academic performance in Cross River State, with a specific focus on Facebook, WhatsApp, and Instagram. To achieve this purpose, three null hypotheses were formulated accordingly. The study adopted a correlational research design. Cluster and simple random sampling techniques were used to select a sample of 1000 students from the entire population. The instrument used for data collection was a questionnaire titled: Tertiary Students’ Social Media Management and (...)
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