Resampling-Based Inference Methods for Comparing Two Coefficients Alpha

The two-sample problem for Cronbach’s coefficient \(\alpha _C\), as an estimate of test or composite score reliability, has attracted little attention compared to the extensive treatment of the one-sample case. It is necessary to compare the reliability of a test for different subgroups, for different tests or the short and long forms of a test. In this paper, we study statistical procedures of comparing two coefficients \(\alpha _{C,1}\) and \(\alpha _{C,2}\). The null hypothesis of interest is \(H_0 : \alpha _{C,1} = \alpha _{C,2}\), which we test against one-or two-sided alternatives. For this purpose, resampling-based permutation and bootstrap tests are proposed for two-group multivariate non-normal models under the general asymptotically distribution-free (ADF) setting. These statistical tests ensure a better control of the type-I error, in finite or very small sample sizes, when the state-of-affairs ADF large-sample test may fail to properly attain the nominal significance level. By proper choice of a studentized test statistic, the resampling tests are modified in order to be valid asymptotically even in non-exchangeable data frameworks. Moreover, extensions of this approach to other designs and reliability measures are discussed as well. Finally, the usefulness of the proposed resampling-based testing strategies is demonstrated in an extensive simulation study and illustrated by real data applications.     

Examination of the “Theory of Guidance” in the View of ‘Ali ibn Abi Talib (a): An Exploration into the Nahj Al-Balaghah

This study examines the “Theory of Guidance” according to ‘Ali ibn Abi Talib (a). This theory is based on three divine covenants or fundamentals in guidance including the divine Prophet, the divine Book, and the divine human nature (fitrat). Research in this regard seems essential because this theory has not been previously considered or researched in the discipline of education. Research findings indicate that all three of the pedagogic fundamentals—namely the teacher, the student, and the subject matter—are essential elements in guidance. Education can be properly realized through the interaction of these constituents enabling attainment of a status worthy of humankind. It is important to note that the teacher, the student, and the subject matter each have their own place, and none can take the place of another. In this relationship, the teacher begins the educational process. It is the teacher who must understand the role of each of these elements and guide them wisely. In order to fulfill the process of education, the teacher must be prepared to receive guidance, understand the position and character of the student, and have a good command of the topic in a way that matches the nature and needs of the student.     

Effects of an Islamic-based gratitude strategy on Muslim students’ level of happiness

This study examined the effects of an Islamic-based expressive gratitude strategy in comparison to a secular-based expressive gratitude strategy and a control group in enhancing Muslims’ level of happiness. It was hypothesised that practising the Islamic-based gratitude exercise (by associating blessings with Allah) would result in higher happiness level over time, compared to the happiness level of Muslim participants practising the secular-based gratitude exercise (without specific association) or the control group (attending to details of daily life). Sixty students were randomly assigned into one of three groups and over a period of 16 days were asked to practise the respective exercises daily. They were assessed for pre- and post-happiness measures. Results generally supported the hypothesis, and suggested that the Islamic-based gratitude is beneficial in raising participants’ happiness level, as it fits with their beliefs and values. Implications of the results for including Islamic-oriented intervention to promote Muslim happiness are discussed.     

Conceptual Organization of Self-representation: A Self-similarity Heuristic for Novel Person Representations

Implicit measures have revealed that cognitive representations of familiar individuals share associations with self-concept; however, this has yet to be established for novel individuals. We examined how self-similarity affects representation of information learned about new individuals. A novel version of the implicit association test (IAT), the self-similarity IAT, was developed to estimate the extent to which cognitive representations of new self-similar and self-dissimilar individuals are associated with self-representation. Categorization was faster when the self-similar individual was paired with self, not only for trait words related to the novel individuals, but also for unrelated demographic information pertaining only to self. This provides the first evidence using an implicit task that self-similarity may act as a heuristic for creating representations of new individuals.     

Ethical Evaluations of Business Students in an Emerging Market: Effects of Ethical Sensitivity,Cultural Values,Personality, and Religiosity

Business ethics has become a very important concern in global business and understanding the effects of various factors on ethical judgments continues to attract research and practitioner attention. Using the Multidimensional Ethics Scale (MES, Reidenbach and Robin 1988) with its five generally accepted philosophical constructs, and vignettes developed by Cohen et al. (1996), current study investigates the relationship between cultural values, personality, religiosity and the ethical sensitivity of business students. We focus on a rapidly emerging country, Turkey, whose economic environment is similar to that of the most Western nations but with a significantly different background and cultural values. Data (n = 184) for the study is collected from a major university in the southeastern Turkey. Although some significant relationships are identified between ethical sensitivity and cultural values and personality, our study findings confirm that MES dimensions had the highest influence on ethical sensitivity levels of business students.     

Basic human values: Inter-value structure in memory

Three experiments examined the latent structure of values. Participants rated the importance of values clustered in pairs. Based on [Schwartz, S. H. (1992). Universals in the content and structure of values: Theoretical advances and empirical tests in 20 countries. In M. Zanna (Ed.), Advances in Experimental Social Psychology (Vol. 25, pp. 1-65). San Diego, CA: Academic Press.] circular model, we predicted and found that the time to rate the second value in each pair was shorter when the two values were motivationally congruent or opposing than when the two values were unrelated (Experiment 1). As expected, this was not the case when participants had to compare the importance of values within each pair (Experiment 2). Finally, semantic relatedness between values failed to explain the effects of motivational compatibility (Experiment 3). Taken together, these results reveal a coherent pattern of value relations driven by motivational compatibilities, over and above perceived semantic relatedness.     

Leibnizian Identity and Paraconsistent Logic

The standard Leibnizian view of identity allows for substitutivity of identicals and validates transitivity of identity within classical semantics. However, in a series of works, Graham Priest argues that Leibnizian identity invalidates both principles when formalized in paraconsistent semantics. This paper aims to show the Leibnizian view of identity validates substitutivity of identicals and transitivity of identity whether the logic is classical or paraconsistent. After presenting Priest's semantics of identity, I show what a semantic expression of Leibnizian identity does amount to. Then, I argue that Priest's semantic definition of identity is not Leibnizian. Finally, I offer a semantics characterization of identity in paraconsistent logic that is truly Leibnizian. I demonstrate that the correct formalization of Leibnizian identity in paraconsistent logic also validates substitutivity of identicals and transitivity of identity.     

Social Robotics,Education, and Religion in the Islamic World: An Iranian Perspective

Science and Engineering Ethics - The social impact of robotics applied to domains such as education, religion, nursing, and therapy across the world depends on the level of technology as well as...