Assessing change with the extended logistic model

The purpose of this article is to define a method for the assessment of change. A reinterpretation of the extended logistic model is proposed. The extended logistic model for the assessment of change (ELMAC) allows the definition of a time parameter which is supposed to identify whether change occurs during a period of time, given a specific event or phenomenon. The assessment of a trend of change through time, on the basis of the time parameter which is estimated at different successive occasions during a period of time, is also considered. In addition, a dispersion parameter is calculated which identifies whether change is consistent at each time point. The issue of independence is taken into account both in relation to the time parameter and the dispersion parameter. An application of the ELMAC in a learning process is presented. The interpretation of the model parameters and the model fit statistics is consistent with expectations.     

Consider the source: One step in assessing premise acceptability

Premise acceptability is conceptually connected to presumption. To say that a premise is acceptable just when there is a presumption in its favor is to give a first approximation to this connection. A number of popular principles of presumption suggest that whether there is a presumption for a premise, belief, or claim depends on the sources which vouch for it. Sources consist of internal belief-generating mechanisms and external testimony. Alvin Plantinga's notion of warrant lays down four conditions upon a source for the belief which it generates to be warranted. We argue that there is a presumption for a premise, belief, or claim if and only if there is a presumption of warrant for that premise,belief or claim. This amounts to the thesis that there is a presumption for a belief from a challenger's point of view if and only if there is a presumption from that person's point of view that her cognitive faculties which have generated the belief have been functioning properly, in an appropriate cognitive environment, in accord with a segment of her design plan aimed at the truth, and that these faculties are reliable. In light of our argument for this thesis, we may legitimately claim that one way to determine that there is a presumption for a belief is to determine that there is a presumption of warrant for that belief, and thus that in determining whether there is a presumption for a belief or premise, we may consider the source.     

ABSTRACTS OF LITERATURE

This is a working guide for a technique for the initial interview in marital therapy. There is a discussion of the seating arrangement and the opening. The therapist lays out ground rules and suggests a theoretical framework for the couple. Each partner is asked to do a self-assessment scale aimed at assessing his or her desire to stay in the marriage. This is followed by a discussion of family behavior. The session is terminated with homework for each of the partners, and a therapeutic contract is made. Nonsystematic feedback suggests the technique is useful.     

Why Hope is not a Moral Virtue: Aquinas's Insight

There is a growing consensus among philosophers that hope is a moral virtue: the virtuously hopeful person experiences the right amount of hope for the right things. This moralization of hope presents us with a puzzle. The historical consensus is that hope is a passion and hope is a theological virtue, not a moral virtue. Thomas Aquinas, the philosopher who wrote most extensively on hope, offers an explanation for why hope is not a moral virtue. The aim of this paper is argue that Aquinas is right in thinking that hope is not a moral virtue. 1     

Healing the wounds and the wounds of healing: a journey of the spirit

This article is a reflective narrative about the death of a parent told from the perspective of her daughter. It is an experience-based account. This shared journey of mother and child links the familiar realm of the conscious and known self to a realm that is not known in the same way and is not merely the self. It is as if one end is in the midst of life's struggles and crises and the other in another realm; yet the whole works together as a single force. In this way the idea is introduced that the very challenges and trauma of life can be a wound that is a healing of wounds, in so far as it prompts recognition of the realm that is out of sight, though the wound certainly is real enough.     

Reality and Existence in Anselm

It is a premise of a widely endorsed putative refutation of Anselm's ontological argument that 'exists' is not a predicate. This Note argues that although 'exists' has the superficial grammatical appearance of a predicate in the Proslogion , Anselm does not in fact rely on the premise that 'exists' is a logical predicate (or that existing is a property) in his putative proof. It follows that even if some argument for the conclusion that 'exists' is not a predicate is sound, that argument is not a refutation of Anselm's argument.     

The relation between the difficulty and the differential validity of a test

Using scores of 1200 students on a long test as a criterion, each of five subtests of different difficulty has maximum correlation with the criterion when the criterion is dichotomized at a value appropriate to the difficulty of the subtest. A 50-item test element is scored on an all-or-none basis with different standards for passing, and the percentage of passes for successive points on the criterion variable is computed. The Constant Method is applied to this relationship. The limen thus computed is a measure of difficulty, the dispersion is a measure of average (or total) validity, and the slope of the curve is a measure of differential validity. The difficulty of a test element is thus directly related to the maximum differential validity.     

The nature and scope of global ethics and the relevance of the Earth Charter

This article presents global ethics as critical reflection on the nature, justification and application of a global ethic. Much of the article focuses on the nature of a global ethic as the content of global ethics, e.g. whether it is thick or thin, is about universal values or transnational responsibilities, is a set of values justified by a particular thinker, values widely shared or values universally accepted. Global ethics itself as a process is also examined. In the last part the Earth Charter is examined as an example of a global ethic, and a case is made for regarding it, both in respect to its content and in respect to the senses in which it is and is not a global ethic, as an appropriate subject matter for global ethics.     

Review

I argue in this paper that anyone who accepts the ontology of scientific realism can only accept a pragmatic theory of truth, i.e., a theory on which truth is what it is epistemically right to believe. But the combination of realism with such a theory of truth is a form of internal realism; therefore, a scientific realist should be an internal realist. The strategy of the paper is to argue that there is no adequate semantic or correspondence theory of truth compatible with a realist ontology, that a redundancy theory cannot account for the value of truth, and that the only kind of truth theory which can account for the value of truth, and is compatible with a realist ontology, is a pragmatic theory. The kind of truth theory I wish to defend is objective and naturalistic, and the ontology is realistic. My position is, therefore, one of objective, naturalistic realism.     

Medicine as a trade

The doctor-patient relationship is usually seen and accepted as a giving-taking association, in which the doctor is a giver and the patient is a taker. The paper challenges such a one-way relationship, and stresses the patient as a giver and the doctor as a receiver. The patient is described as a source for the emotional development of the doctor, and as a source of knowledge. He is also a source for what could be called ‘life experience’. By serving as a source for these three elements, the patient is also seen as a source for reward. There is a danger of under-utilisation of this reward by the doctor, when (1) he is engaged only in giving, (2) he wilfully obstructs the channel of information, and (3) he feels ‘saturation’ called by the doctor ‘experience’. This under-utilisation will ultimately lead to ‘medical parasitism’. This parasitism is seldom recognised by the patient, because the arrest of development of a doctor is usually hardly noticed, and this will lead to neglect of the patient, so that the ‘trade’ between doctor and patient becomes unfair, as the long-term investment which the patient has placed in the doctor, does not pay off any longer.     

On the theoretical foundations of Soviet psychology

Conclusion We are now in a position to examine the claim that Pavlovian physiology and Marxist-Leninist philosophy form two complementary systems.There is certainly a similarity between the Leninist theory of reflection and Pavlov's theory of higher nervous activity. Both present so-called psychic phenomena as a reaction of the organism to the stimuli of the outer world and both insist that this reflection is not a passive reception of impressions but is an active response on the part of the organism.Again both systems are monist; they are united in excluding the possibility of having recourse to a non-material substance as the basis for psychic phenomena. But for Pavlov this exclusion is a scientific axiom while for Marxism-Leninism it is founded on philosophical materialism. However, the most important difference between Pavlov's theories and Marxism-Leninism on this point is that Pavlov's approach to psychic is fundamentally mechanistic and reductionist whereas that of Marxism-Leninism is dialectical and consequently anti-reductionist and anti-mechanist. Soviet psychology is, in consequence, founded partly on a mechanist system which is not materialist in the full sense of the word, and partly on a materialist system which is definitely not mechanist. From this point of view there is a definite discrepancy between the two traditions on which Soviet psychology is founded and which goes a long way towards explaining many of the inconsistencies in Soviet psychological theory.     

The Adult Self: Process and Paradox

This paper defines the adult self as an identity-in-a-mutuality-of-relating, a reality that is at once a process and a paradox. As an identity-in-a-mutuality-of-relating this self has 5 characteristics, each of which is also a process and a paradox: it is a body-self; it is rooted and disclosed in feeling; it is a felt sense of depth; it has its own clear boundaries and exists in intimacy; and it is its own responsible process of experiencing. The fullness of the adult self lies in self-actualization and self-reflection, and here this self is most a process and most a paradox.     

'Perceiving the present' as a framework for ecological explanations of the misperception of projected angle and angular size

An implicit, underlying assumption of most Helmholtzian/Bayesian approaches to perception is the hypothesis that the scene an observer perceives is the probable source of the proximal stimulus. There is, however, a nontrivial latency (on the order of 100 ms) between the time of a proximal stimulus and the time a visual percept is elicited. It seems plausible that it would be advantageous for an observer to have, at any time t, a percept representative of what is out there at that very time t, not a percept of the recent past. If this is so, it implies a modification to the implicit hypothesis underlying most existing probabilistic approaches to perception: the new hypothesis is that, given the proximal stimulus, the scene an observer perceives is the probable scene present at the time of the percept. That is, the hypothesis is that what an observer perceives is not the probable source of the proximal stimulus, but the probable way the probable source will be when the percept actually occurs. A model of an observer's typical movements in the world is developed, and it is shown that projected angles are perceived in a way consistent with the way the probable source will project to the eye after a small time period of forward movement by the observer. The predicted and actual direction of projected-angle misperception is sometimes toward 90 degrees and sometimes away from 90 degrees, depending on whether the probable source angle is lying in a plane parallel or perpendicular to the probable direction of motion, respectively. The perception of angular size for lines in a figure with cues they are lying in a plane perpendicular to the direction of motion is also shown to fit the predictions of the model.     

A note on steady states and the weber-fechner law

The steady state of a simple reaction system has been shown to have some of the properties of a psychophysical discrimination system, including the possibility of deducing a generalized Weber-Fechner Law, both in integral form and in difference form. The Weber ratio so deduced is not constant, and its dependence on stimulus intensity is exhibited. The dependence of the difference limen on the internal threshold is discussed; it is found that in general there is a finite value of this threshold for which response is impossible. This critical threshold is lower for higher values of the reference stimulus intensity. Similarly, it is shown that the difference limen and the Weber ratio, for a fixed value of the threshold, become infinite (i.e., discrimination is impossible) for a value of the stimulus intensity which in general is finite.     

The detection of a temporal gap between two disparate stimuli

When a temporal gap is bounded by a light and a tone, gap detection performance as a function of gap duration is well described by a simple model which characterizes the discrimination as a purely temporal one. When the gap is bounded by two tones, performance is superior and seems to depend on the frequency difference between the tones, but is not well described by the same model. It is suggested that the light-tone performance represents the operation of a central temporal discrimination mechanism, while the tone-tone cases represent the use by Os of nontemporal cues originating in the peripheral auditory system.     

Christian Adoption?

Abstract : Adoption is not a uniquely Christian practice, but it is a distinctly Christian act when grounded in the traditions of neighbor love and familial belonging. An orphaned child is a neighbor in need, and adoption is a fitting response to meeting this need. Caritas is the initial motive prompting this response but is not a disinterested provisional of parental care. Rather it is oriented toward parental love and familial belonging. Consequently, this Christian understanding of adoption should be preserved as a uniquely moral act in order to prevent orphaned children from being reduced to a means of remedying childlessness, or the using of adopted children as a wedge for justifying unwarranted governmental intrusion into the family.     

A titration schedule on a treadmill

A technique is presented utilizing a titration schedule to measure performance decrement as a function of continuing heavy muscular exertion. A treadmill is equipped with a reversible motor controlling the velocity control of the treadmill itself. This provides a constant acceleration of the treadmill unless a subject-controlled, spring loaded switch is depressed. If this switch is depressed, the treadmill decelerates at a constant rate. A subject is instructed to walk at maximum rate at all times, controlling the velocity of the treadmill with the switch. A performance record is obtained from a tachometer-generator on the treadmill delivering current to a recorder.     

Cogmic space for narrative-based world representation

Representing a world or a physical/social environment in an agent’s cognitive system is essential for creating human-like artificial intelligence. This study takes a story-centered approach to this issue. In this context, a story refers to an internal representation involving a narrative structure, which is assumed to be a common form of organizing past, present, future, and fictional events and situations. In the artificial intelligence field, a story or narrative is traditionally treated as a symbolic representation. However, a symbolic story representation is limited in its representational power to construct a rich world. For example, a symbolic story representation is unfit to handle the sensory/bodily dimension of a world. In search of a computational theory for narrative-based world representation, this study proposes the conceptual framework of a Cogmic Space for a comic strip-like representation of a world. In the proposed framework, a story is positioned as a mid-level representation, in which the conceptual and sensory/bodily dimensions of a world are unified. The events and their background situations that constitute a story are unified into a sequence of panels. Based on this structure, a representation (i.e., a story) and the represented environment are connected via an isomorphism of their temporal, spatial, and relational structures. Furthermore, the framework of a Cogmic Space is associated with the generative aspect of representations, which is conceptualized in terms of unconscious- and conscious-level processes/representations. Finally, a proof-of-concept implementation is presented to provide a concrete account of the proposed framework.