Putting inference to the best explanation in its place

This paper discusses the nature and the status of inference to the best explanation (IBE). We (1) outline the foundational role given IBE by its defenders and the arguments of critics who deny it any place at all; (2) argue that, on the two main conceptions of explanation, IBE cannot be a foundational inference rule; (3) sketch an account of IBE that makes it contextual and dependent on substantive empirical assumptions, much as simplicity seems to be; (4) show how that account avoids the critics' complaints and leaves IBE an important role; and (5) sketch how our account can clarify debates over IBE in arguments for scientific realism.The general line of argumentation developed in this paper owes much to the most recent work of Elliot Sober on simplicity and confirmation; we want to acknowledge that dependence directly. Since writing this paper, we have also come across Yemima Ben-Menahem: 1990, The Inference to the Best Explanation,Erkenntnis 33, 319–44, whose general approach parallels our own. Helpful comments were made on earlier drafts by George Graham, Romane Clark, Yemima Ben-Menahem, and an anonymous referee.     

Hypothetico-Deductivism is Still Hopeless

Since Christensen refuted the Bootstrap theory of confirmation in 1990, there have been some trials to improve the Hypothetico-Deductive theory of confirmation. After some trials, Gemes (1998) declared that his revised version completely overcame the difficulties of Hypothetico-Deductivism without generating any new difficulties. In this paper, I will assert that Gemes's revised version encounters some new difficulties, so it cannot be a true alternative to the Bootstrap theory of confirmation and to classical Hypothetico-Deductivism. Also I will assert that, in principle, such new difficulties cannot be overcome by any trials dependent only on formal logic.     

Perfectionism, acne and appearance concerns

This study investigated the relationship between perfectionism and two aspects of appearance worry: acne-related concerns and dysmorphic concerns. One-hundred and sixty five female university students completed measures of three facets of perfectionism: self-oriented, other-oriented and socially prescribed [Hewitt, P. L., & Flett, G. L. (1991a). Perfectionism in the self and social contexts: conceptualization, assessment and association with psychopathology. Journal of Personality and Social Psychology, 60, 456–470], general psychopathology (GHQ-28), acne health related quality of life [Girman, C. J., Hartmaier, S., Thiboutot, D., Johnson, J., Barter, B., DeMunro-Mercon, & Waldstreicher, J. (1996). Evaluating health-related quality of life in patients with facial acne: development of a self-administered questionnaire for clinical trials. Quality of Life Research, 5, 481–490] and dysmorphic concerns [Oostuizen, P., Lambert, T., & Castle, D.J. (1998). Dysmorphic concern: prevalence and associations with clinical variables. Australian and New Zealand Journal of Psychiatry, 32, 129–132]. Multiple regression analyses showed that, after controlling for general psychopathology, a high level of socially prescribed perfectionism was associated with a greater tendency to be concerned about acne in particular and appearance in general.     

Houston Conference: Need for More Fundamental Knowledge in Neuropsychology

Two training models in neuropsychology have been recently proposed (Guidelines of the INS-Division 40 Task Force on Education, Accreditation, and Credentialing, Clin. Neuropsychol. 1: 29–34, 1987; Hannay, H. J. et al., Arch. Clin. Neuropsychol. 13: 157–250, 1998). When comparing both educational models, similarities but also differences are found. According to the Houston Conference model—but not to the former model—neuropsychology represents a specialty of psychology. In the Houston Conference training model, applied knowledge is overtly emphasized, whereas fundamental or basic knowledge in neuropsychology appears weak. The proposed program does not seem to provide sufficient emphasis and background knowledge in (1) History of neuropsychology, (2) Neuropsychological syndromes, and (3) Neuropsychology theory.     

On the relationship between Karen Horney's tripartite neurotic type theory and personality disorder features

[Horney, 1945] and [Horney, 1950] interpersonal theory [Horney, K. (1945). Our inner conflicts. New York, NY: W. W. Norton & Co., Inc.; Horney, K. (1950). Neurosis and human growth. New York, NY: W. W. Norton & Co., Inc.] postulated that individuals could move toward, move against, and move away from others as manifestations of their character development. In the present studies, it was hypothesized that Horney's tripartite theory might be useful in the elucidation of Diagnostic and Statistical Manual of Mental Disorders personality disorder features. In the first study, college students (n=198) completed the Coolidge Axis II Inventory [CATI; Coolidge, F. L. (1999), Coolidge Assessment Battery Manual. Port Huron, MI: Sigma Assessment Systems and Coolidge, F. L., & Merwin, M. M. (1992). Reliability and viability of the Coolidge Axis II Inventory: a new inventory for the assessment of personality disorders. Journal of Personality Assessment, 59, 223–238] and Cohen's 1967 35-item test [Cohen, J. B. (1967). An interpersonal orientation to the study of consumer behaviour. Journal of Marketing Research, 4, 270–278] of Horney's three types: Compliant, Aggressive, and Detached. In the second study, another group of college students (n=881) completed the CATI and Coolidge's 57-item test of Horney's three types. Results showed that both scales were reliable, generally similar, and numerous predicted correlational relationships were found. The usefulness of Horney's constructs in the understanding of personality disorders was discussed.     

Review, critique, and synthesis of personality theory in motivation to sexually assault

A widely-cited meta-analysis of recidivism amongst adult male perpetrators or sexual assult [Hanson and Bussiere, J. Consult. Clin. Psychol. 66 (1998) 348–362] found that the presence of any personality disorder (APA, Diagnostic and Statistical Manual of Mental Disorders: DSM-III-R. (1987); [APA, Diagnostic and Statistical Manual of Mental Disorders: DSM-IV (1994)] was the only variable to significantly predict sexual recidivism in a category measuring “Psychological Maladjustment” (r₊=.16, n=315). The relationship between personality disturbance and new sexual offenses is undoubtedly a dynamic relationship that deserves exploration. This review and critique of theory covers two theories of personality: (1) a psychoanalytic theory of rapist personality offered by Groth [Men Who Rape: The Psychology of the Offender. (1979), New York: Plenum] and (2) a general biosocial theory or personality disturbance offered by Millon [Disorders of Personality: DSM-IV and Beyond. (1996). New York: Wiley]. Theory offered by Groth is critiqued and limitations considered. Theory offered by Millon is offered and the two approaches are synthesized to suggest possible causes of characteristic psychological disturbance associated with perpetration of sexual assault. Applications for research and practice are considered, and implications of this line of research for risk assessment and sexual assault prevention are reviewed.     

Are There Algorithms That Discover Causal Structure?

There have been many efforts to infer causation from association byusing statistical models. Algorithms for automating this processare a more recent innovation. In Humphreys and Freedman[(1996) British Journal for the Philosophy of Science 47, 113–123] we showed that one such approach, by Spirtes et al., was fatally flawed. Here we put our arguments in a broader context and reply to Korb and Wallace [(1997) British Journal for thePhilosophy of Science 48, 543–553] and to Spirtes et al.[(1997) British Journal for the Philosophy of Science 48, 555–568]. Their arguments leave our position unchanged: claims to have developed a rigorous engine for inferring causation from association are premature at best, the theorems have no implications for samples of any realistic size, and the examples used to illustrate the algorithms are indicative of failure rather than success. The gap between association and causation has yet to be bridged.     

Car following from the driver’s perspective

In this commentary, it is argued that the car following models discussed in Brackstone, M., and McDonald, M. (Transportation Research – Part F (2000), pp. 181–196) ignore one or more of the following issues that characterize to observed driver behavior. These include: (i) car following is only one of many tasks that drivers perform simultaneously and receives therefore only intermittent attention and control (task scheduling/attention management), (ii) drivers are satisfied with a range of conditions that extend beyond the boundaries imposed by perceptual and control limitation (satisficing instead of optimal performance evaluation), and (iii) in each driving task drivers use a set of highly informative perceptual variables to guide decision making and control (perceptual rather than Newtonian input). To elucidate these issues, a general driver modeling framework is presented in which the car-following task is highlighted (Boer, E. R., & Hoedemaeker, M. (1998). In Proceedings of the XVIIth European Annual Conference on Human Decision making and Manual Control December 14–16. France: Valenciennes; Boer, E. R., Hildreth, E. C., & Goodrich, M. A. (1998). In Proceedings of the XVIIth European Annual Conference on Human Decision making and Manual Control December 14–16. France: Valenciennes).     

Bootstrapping and Content Parts

Christensen [Philosophy of Science, 50: 471–481, 1983] and [Philosophy of Science, 57: 644–662, 1990] provides two sets of counter-examples to the versions of bootstrap confirmation for standard first-order languages presented in Glymour [Theory and Evidence, Princeton University Press, Princeton, 1980] and [Philosophy of Science, 50: 626–629, 1983]. This paper responds to the counter-examples of Christensen [Philosophy of Science, 50: 471–481, 1983] by utilizing a new notion of content introduced in Gemes [Journal of Philosophical Logic, 26, 449–476, 1997]. It is claimed that this response is better motivated and more effective than that presented in Glymour [Philosophy of Science, 50: 626–629, 1983]. It is then argued that while this response meets some of the counter-examples of Christensen [Philosophy of Science, 57: 644–662, 1990] two of those counter-examples, though not unanswerable, suggest the need for a substantial reformulation of the formal versions of bootstrapping. The essay proceeds with such a reformulation, arguing that this new formulation better fits the philosophical insights that originally motivated bootstrapping than do Glymour’s earlier formulations. In the concluding sections some alternative solutions to the problem posed by the Christensen counter-examples are discussed.     

An Essay on the Houston Conference Policy Statement: Static Yet Incomplete or a Work in Progress?

Ardila (Neuropsychol. Rev. 12: 3, 2002) criticizes the Policy Statement from the Houston Conference on Specialty Education and Training in Clinical Neuropsychology (Hannay et al., Arch. Clin. Neuropsychol. 13: 157–250, 1998) as possessing deficiencies in the training of clinical neuropsychologists in three fundamental knowledge areas: the history of the discipline, neuropsychological syndromes, and neuropsychological theory. These problems are seen here as a result of a more pervasive problem associated with the Houston Conference training model's emphasis on technical skill over science and the attempt to micromanage the training of the clinical neuropsychologist at the administrative level.     

Accidentally True Belief and Warrant

The Proper Functionist account of warrant – like many otherexternalist accounts – is vulnerable to certain Gettier-style counterexamples involving accidentally true beliefs. In this paper, I briefly survey the development of the account, noting the way it was altered in response to such counterexamples. I then argue that Alvin Plantinga's latest amendment to the account is flawed insofar as it rules out cases of true beliefs which do intuitively strike us as knowledge, and that a conjecture recently put forward by Thomas Crisp is also defective. I conclude by presenting my own suggestion as to how the account can be made less vulnerable to counterexamples involving accidentally true beliefs. Although I stay within the confines of Proper Functionism here, I think that my proposal (modulo a few details) could be attached to other externalist accounts of warrant as well.     

Exploring the effects of a youth enrichment program on academic motivation and engagement

This study explores the effects of a youth enrichment program on academic motivation and engagement. Fifty-three students aged 14–16 years participated in the Rotary Youth Program of Enrichment (RYPEN). Embedded within the program were workshops revolving around the Student Motivation and Engagement Wheel [Martin (2003a). How to motivate your child for school and beyond. Sydney: Bantam] and strategies aimed at enhancing students’ academic motivation and engagement. Motivation was measured using the Student Motivation and Engagement Scale [Martin (2001). Australian Journal of Guidance and Counselling 11, 1–20; Martin (2003b) Australian Journal of Education, 14, 34–49] at the outset of the program, towards the end of the program, and again 6–8 weeks later. Data showed that there were gains on key facets of students’ motivation by the end of the program – gains that were sustained 6–8 weeks later. These gains were demonstrated by boys and girls. Moreover, when compared to a larger weighted sample (2769 high school students), by Time 2 and also by Time 3, significant declines in motivation had been reversed and any pre-existing advantages or parallel strengths of the RYPEN sample over the weighted sample were maintained. Five facets of the program proposed to have contributed to its effectiveness are: the optimistic expectations held by adults, the program’s focus on mastery, the climate of cooperation and the ensuing sense of belonging, the positive relationships that developed amongst students and between students and adults, and embedding school-related elements within a broader enrichment program. Each of these is discussed.     

Unconscious odour conditioning 25 years later: Revisiting and extending ‘Kirk-Smith, Van Toller and Dodd’

The pioneering work by Kirk-Smith, Van Toller, and Dodd [Kirk-Smith, M. D., Van Toller, C., & Dodd, G. H. (1983). Unconscious odour conditioning in human subjects. Biological Psychology, 17, 221–231], established that an unnoticed odorant paired with an emotionally meaningful task can influence mood and attitudes when the odorant alone is re-encountered subsequently. This study was particularly important in highlighting unconscious odour learning processes as they may happen in everyday life. However, it was severely criticized by Black and Smith [Black, S. L., & Smith, D. G. (1994). Has odor conditioning been demonstrated? A critique of “Unconscious odour conditioning in human subjects”. Biological Psychology, 37, 265–267] on methodological grounds. In the present paper, we replicated and extended Kirk-Smith et al.’s investigation taking into account Black and Smith’s criticisms and carrying out additional controls to improve the validity of the study. The results confirm the initial findings of Kirk-Smith and colleagues by demonstrating the effectiveness of olfactory stimuli in inducing conditioned hedonic reactions even when presented below the level of awareness.     

Intermediate logics with the same disjunctionless fragment as intuitionistic logic

Given an intermediate prepositional logic L, denote by L ^–d its disjuctionless fragment. We introduce an infinite sequence {J _n}_n1 of propositional formulas, and prove:(1)For any L: L ^–d =I ^–d (I=intuitionistic logic) if and only if J _n L for every n 1.Since it turns out that L{J _{n} n}1 = Ø for any L having the disjunction property, we obtain as a corollary that L ^–d = I ^–d for every L with d.p. (cf. open problem 7.19 of [5]). Algebraic semantic is used in the proof of the if part of (1). In the last section of the paper we provide a characterization in Kripke's semantic for the logics J _n =I+ +J _n (n 1).     

The psychophysics of chasing: A case study in the perception of animacy

Psychologists have long been captivated by the perception of animacy – the fact that even simple moving shapes may appear to engage in animate, intentional, and goal-directed movements. Here we report several new types of studies of a particularly salient form of perceived animacy: chasing, in which one shape (the ‘wolf’) pursues another shape (‘the sheep’). We first demonstrate two new cues to perceived chasing – chasing subtlety (the degree to which the wolf deviates from perfectly ‘heat-seeking’ pursuit) and directionality (whether and how the shapes ‘face’ each other). We then use these cues to show how it is possible to assess the objective accuracy of such percepts, and to distinguish the immediate perception of chasing from those more subtle (but nevertheless real) types of ‘stalking’ that cannot be readily perceived. We also report several methodological advances. Previous studies of the perception of animacy have faced two major challenges: (a) it is difficult to measure perceived animacy with quantitative precision; and (b) task demands make it difficult to distinguish perception from higher-level inferences about animacy. We show how these challenges can be met, at least in our case study of perceived chasing, via tasks based on dynamic visual search (the Find-the-Chase task) and a new type of interactive display (the Don’t-Get-Caught! task).     

Of substance: The nature of language effects on entity construal

Shown an entity (e.g., a plastic whisk) labeled by a novel noun in neutral syntax, speakers of Japanese, a classifier language, are more likely to assume the noun refers to the substance (plastic) than are speakers of English, a count/mass language, who are instead more likely to assume it refers to the object kind [whisk; Imai, M., & Gentner, D. (1997). A cross-linguistic study of early word meaning: Universal ontology and linguistic influence. Cognition, 62, 169–200]. Five experiments replicated this language type effect on entity construal, extended it to quite different stimuli from those studied before, and extended it to a comparison between Mandarin speakers and English speakers. A sixth experiment, which did not involve interpreting the meaning of a noun or a pronoun that stands for a noun, failed to find any effect of language type on entity construal. Thus, the overall pattern of findings supports a non-Whorfian, language on language account, according to which sensitivity to lexical statistics in a count/mass language leads adults to assign a novel noun in neutral syntax the status of a count noun, influencing construal of ambiguous entities. The experiments also document and explore cross-linguistically universal factors that influence entity construal, and favor Prasada’s [Prasada, S. (1999). Names for things and stuff: An Aristotelian perspective. In R. Jackendoff, P. Bloom, & K. Wynn (Eds.), Language, logic, and concepts (pp. 119–146). Cambridge, MA: MIT Press] hypothesis that features indicating non-accidentalness of an entity’s form lead participants to a construal of object kind rather than substance kind. Finally, the experiments document the age at which the language type effect emerges in lexical projection. The details of the developmental pattern are consistent with the lexical statistics hypothesis, along with a universal increase in sensitivity to material kind.     

Complexity of online gender confirmation resources surpass patient literacy

Background: Increasing transgender health care coverage has resulted in easier access to gender confirmation surgery. Patients considering surgery consistently access medical information online to improve knowledge regarding surgical options, complications, recovery, and life after transitioning. As a result, national health institutes recommend that patient educational materials be written at a sixth-grade–reading level. The purpose of this study is to assess the complexity of online gender confirmation surgery information.

Methods: An Internet search was performed using the key phrase “transgender surgery”. Health care and non–health care websites were evaluated for pertinent articles regarding gender confirmation surgery. Readability analyses were conducted using Flesch-Kincaid Grade Level, Gunning Fog Index, Coleman-Liau Index, Simple Measure of Gobbledygook Index, and Automated Readability Index. A two-tailed z test was used to compare means; significance was set at p ≤ 0.05.

Results: A total of 108 articles from 87 websites were analyzed. The average readability for all online gender confirmation-surgery information was at an 11th-grade reading level. Materials written by health care entities were written at a 12th-grade–reading level compared to non–health care articles, which were written at a 10th-grade level (p < 0.001). Male-to-female surgery materials were written at a 12th-grade level, significantly higher than the 11th-grade reading level of female-to-male surgery materials (p = 0.04).

Conclusion: Online information regarding gender confirmation surgery is written at a level that is too complex for patients to understand. Informational materials should be written at lower grade levels to improve patient education, informed consent, and outcomes.     

Is gerontology a branch of astrology? The role of advanced age in scientific explanation

Although gerontologists have been troubled by meta-scientific problems such as the proper definition of their discipline, the nature of time and age, and the lack of a nonarbitrary distinction between the old and the not old [e.g., Baltes & Goulet (1970) In Life-span developmental psychology (pp. 4–23). New York: Academic Press; Birren (1959) In Handbook of aging and theindividual (pp. 3–42). Chicago, IL: University of Chicago Press; McKee (1982) Philosophical foundations of gerontology. New York: Human Sciences Press; Reese & Overton (1970) In Life-span developmental psychology (pp. 116–149). New York: Academic Press; Wohlwill (1970) Psychological Review, 77, 49–647], philosophers of science have paid little attention to the meta-scientific problems of gerontology. In this paper some philosophical problems in gerontology are examined through an analysis of the nature of scientific explanation. An argument is presented that claims that gerontology avoids many of the meta-scientific problems associated with time and advanced chronological age because these terms will tend to be obviated or “screened off” in scientific explanations in gerontology.     

Practical rationality for pluralists about the good

I argue that if a normative theory of practical rationality is to represent an adequate and coherent response to a plurality of incommensurable goods, it cannot be a maximising theory. It will have to be a theory that recognises two responses to goods as morally licit – promotion and respect – and one as morally illicit – violation. This result has a number of interesting corollaries, some of which I indicate. Perhaps the most interesting is that it makes the existence of a plurality of incommensurable goods incompatible with consequentialism.