A simple effect size indicator for two-group comparisons? A comment on r equivalent

R. Rosenthal and D. B. Rubin (2003) proposed an effect size, r equivalent, to be used when (a) only sample size and p values are known for a study, (b) there are no generally accepted effect size indicators, or (c) sample sizes are so small or the data so non-normal that the directly computed effect sizes would be more misleading than the simple effect size. The limitations of their proposal, however, are many, and much more serious than the authors suggested, and should be carefully considered before this effect size is applied, as well as in developing other effect sizes using similar methods.     

BIOLOGICAL SIGNIFICANCE AS A DETERMINANT OF CUE COMPETITION

Abstract— Many researchers have noted the similarities between causal judgment in humans and Pavlovian conditioning in animals. One recently noted discrepancy between these two forms of learning is the absence of backward blocking in animals, in contrast with its occurrence in human causality judgment. Here we report two experiments that investigated the role of biological significance in backward blocking as a potential explanation of this discrepancy. With rats as subjects, we used sensory preconditioning and second-order conditioning procedures, which allowed the to-be-blocked cue to retain low biological significance during training for some animals, but not for others. Backward blocking was observed only when the target cue was of low biological significance during training. These results suggest that the apparent discrepancy between human causal judgment and animal Pavlovian conditioning arises not because of a species difference, but because human causality studies ordinarily use stimuli of low biological significance, whereas animal Pavlovian studies ordinarily use stimuli of high biological significance, which are apparently protected against cue competition.     

Comments on parameter estimation for Restle's theory of cue learning

Improved estimation procedures are suggested and a more complete distribution theory is presented for Restle's Cue Learning Model.This research was supported by Air Force Grant, AFOSR 62-384.     

The deep bodily origins of the subjective perspective: models and their problems

The naturalization of consciousness and the way a subjective perspective arises are hotly debated both in the cognitive sciences and in more strictly philosophical contexts. A number of these debates, mainly inspired by neuroscientific findings, focus on the 'visceral' dimension of the body in order to formulate a hypothesis for the coming about of consciousness. This focus on what might be called the 'in-depth body' (which is usually not governed by the intentions of the subject) shows that consciousness or the subjective perspective is intimately linked with vital and visceral regulatory processes. I join the debate by arguing that representationalist accounts of the origin of consciousness in the in-depth body exhibit a number of flaws hitherto mainly unnoticed. Furthermore, some aspects of neuroscientific theories are explored as possible validations of a nonrepresentationalist model of consciousness and the subjective perspective. Inspired by phenomenological (more specifically Husserlian) philosophy, I present a hypothesis in which the subjective perspective constitutes itself (in a process of auto-constitution) and in which the 'in-depth' body is not the object of representations in the brain. Rather, the 'in-depth body' is in a non-objectified way built-in in the subjective perspective itself. In this account, therefore, the subjective perspective looses its transparency and gains 'interoceptive thickness'.     

Undercover Education: Mice, Mimesis, and Parasites in the Teaching Machine

What happens to education when the potential it helps realizing in the individual works against the formal purposes of the curriculum? What happens when education becomes a vehicle for its own subversion? As a subject-forming state apparatus working on ideological speciesism, formal education is engaged in both human and animal stratification in service of the capitalist knowledge economy. This seemingly stable condition is however insecured by the animal rights activist as undercover learner and??worker, who enters education and research laboratories under false premises in order to extract the knowledge necessary to dismantle the logic of animal utility on which the scientific-educational apparatus rests. The present article is based on a semi-structured interview with an undercover worker. It draws on a synthesis of critical education and posthumanist theories to configure knowledge creation and subjectification processes in the ??negative spaces?? of education. The techne of undercover work includes mnemotechnical and prosthetic devices, calculation of risk, and mimetic labor. The article argues that the agenda of the undercover worker generates a multi-strained mimetic complex that composes a parasitic educational subject-assemblage redirecting scientific knowledge away from the animal stratification logic of the knowledge economy into different viral circuits; different lines of flight. It invites a rearticulation of the formal education state apparatus in more indeterminate directions, provoking scientific-educational knowledge-practices to become a catalytic impulse for their own disintegration.     

Psychometric Assessment of the Child Surgery Worries Questionnaire Among Portuguese Children

Worries are common in surgical patients, especially in children. The present study analyzed the factor structure and the psychometric properties of a Portuguese version of the Child Surgery Worries Questionnaire (CSWQ-P) in a Portuguese sample of 490 children. Exploratory factor analysis, conducted via principal axis factoring with oblimin rotation, provided evidence for a four-factor structure of the 21 item questionnaire. A confirmatory factor analysis was also conducted, showing the good fit of this solution. The CSWQ-P proved to have one more subscale than the original Spanish version CSWQ. Correlations with the children’s trait anxiety provided evidence of convergent validity for the CSWQ-P. Females also scored higher on worries than males on all subscales. Psychometric properties of this revised version of the CSWQ provided support for use with young children, and indicate the CSWQ-P has value for use in healthcare practice and in clinical research.     

The hierarchical structure of childhood personality in five countries: continuity from early childhood to early adolescence

Childhood personality is a rapidly growing area of investigation within individual differences research. One understudied topic is the universality of the hierarchical structure of childhood personality. In the present investigation, parents rated the personality characteristics of 3,751 children from 5 countries and 4 age groups. The hierarchical structure of childhood personality was examined for 1-, 2-, 3-, 4-, and 5-factor models across country (Canada, China, Greece, Russia, and the United States) and age group (3-5, 6-8, 9-11, and 12-14 years of age). Many similarities were noted across both country and age. The Five-Factor Model was salient beginning in early childhood (ages 3-5). Deviations across groups and from adult findings are noted, including the prominent role of antagonism in childhood personality and the high covariation between Conscientiousness and intellect. Future directions, including the need for more explicit attempts to merge temperament and personality models, are discussed.     

Stable Genetic Influence on Anxiety-Related Behaviours Across Middle Childhood

We examined the aetiology of anxiety symptoms in an unselected population at ages 7 and 9, a period during which anxiety disorders first begin to develop (mean age at onset is 11 years). Specifically, the aim of the study was to investigate genetic and environmental continuity and change in components of anxiety in middle childhood. Parents of over 3,500 twin pairs completed the Anxiety-Related Behaviours Questionnaire (ARBQ) when twins were 7 and 9 years old. Multivariate-longitudinal analyses were conducted to examine genetic and environmental influences on stability and change in four anxiety scales: Negative Cognition, Negative Affect, Fear and Social Anxiety. We found moderate temporal stability in all four scales from 7 to 9 years (correlations ranging from 0.45 to 0.54) and moderate heritability (average 54%). Both shared and non-shared environmental influences were modest (average 18%–28% respectively). Genetic factors (68%) explained most of the homotypic continuity in anxiety. We show that homotypic continuity of Anxiety-Related Behaviours (i.e. the continuation of one specific type of anxiety over time) was largely driven by genetic factors. In contrast, though more varied, heterotypic continuity between some traits (i.e. the change from one type of anxiety-related behaviour into another over time) was mainly due to shared-environmental factors.     

Assessing the five factors of personality in adolescents: the junior version of the Spanish NEO-PI-R

This article presents the development of a junior version of the Spanish (Castilian) NEO Personality Inventory-Revised (JS NEO) suitable for adolescents aged 12 to 18 years. The psychometric properties of the new JS NEO were investigated using two samples of 2,733 and 983 adolescents in Spain. The results showed that the adult NEO-PI-R factor structure was replicated with the junior version of the inventory and that the reliabilities of the scales were adequate. The cross-form correlations between the junior and the adult versions of the questionnaires indicated good equivalence indices. Furthermore, a joint factor analysis of the JS NEO and the Big Five Questionnaire-Children (BFQ-C) provided additional evidence for the construct validity of the JS NEO.