Variations in hand position, cerebral lateralization, and reading ability among right-handed children

A group of 121 right-handed children between the ages of 7 and 9 with a range of hand positions between normal and inverted were assessed for verbal and visuospatial lateralization and reading comprehension. Results indicate that (a) children with a normal hand position tended to be more verbally lateralized than children with nonnormal positions, although the effect was not strong or always consistent, (b) the closer the child was to the normal position, the higher the child's reading scores, and (c) poor readers were as lateralized for verbal and visuospatial functions as were good readers. Coupled with the results of previous research, these findings suggest that hand position indexes both maturation and lateralization, and that the relationship between hand position and reading is primarily mediated by the former.     

The stochastic model of mental testing theory and an application

An axiomatization of mental test theory is presented. The presentation deals explicitly with the following concepts: true score, parallel forms, reliability, validity, and combined test score.This project was supported by the Office of Naval Research under Contract N6onr 270-(20) and by the National Science Foundation, Grant NSF G-642. Work now continued under Nonr 1858-(150) and NSF G-22889.     

Still the same dilemma for conceptual engineers: reply to Koch

Philosophical Studies - Steffen Koch (Koch 2020) raises several objections to my critique of conceptual engineering (Deutsch in ‘Speaker’s Reference, Stipulation, and a Dilemma for...     

“Just Carbon”: Ideas About Graphene Risks by Graphene Researchers and Innovation Advisors

Graphene is a nanomaterial with many promising and innovative applications, yet early studies indicate that graphene may pose risks to humans and the environment. According to ideas of responsible research and innovation, all relevant actors should strive to reduce risks related to technological innovations. Through semi-structured interviews, we investigated the idea of graphene as a risk (or not) held by two types of key actors: graphene researchers and innovation advisors at universities, where the latter are facilitating the movement of graphene from the laboratory to the marketplace. The most common idea found is that graphene is not a risk due to, e.g., low toxicity, low amounts produced/used, and its similarity to harmless materials (being “just carbon”). However, some researchers and advisors also say that graphene is a risk, e.g., under certain conditions or due to a lack of risk-related information. We explain the co-existence of these seemingly contradictory ideas through (1) the semantic ambiguity of the word risk and (2) a risk/no-risk rhetoric, where risks are mentioned rhetorically only to be disregarded as manageable or negligible. We suggest that some of the ideas held by the researchers and innovation advisors constitute a challenge to responsible research and innovation regarding graphene. At the same time, we acknowledge the dilemma that the discourse of responsible innovation creates for the actors: denying graphene risks makes them irresponsible due to a lack of risk awareness, while affirming graphene risks makes them irresponsible due to their everyday engagement in graphene development. We therefore recommend more research into what researchers and innovation advisors should do in practice in order to qualify as responsible.     

Confidence Analyses of Self-Interpretation and Self-Description in Depressive Behaviour

The present paper represents an investigation in the procedure to validate a new questionnaire (Salzburg Subjective Behavioural Analysis, SSBA). This questionnaire is based on a new approach to the diagnosis of depressive behaviour. It is hypothesized that a patient suffering from a depressive disorder loses the ability to produce one or more modes of behaviour at a given time and simultaneously has the urge to produce one or more modes of behaviour constantly. Although the patient is capable of describing this behavioural disorder, he/she is unable to interpret it confidently. This inability of interpretation of depressive behaviour assessed with the SSBA may represent a special kind of cognitive impairment in depression that is tested in conducting an analysis of confidence. The analysis of confidence shows that the capability of interpretation in the patient group is significantly impaired. Finally, a discriminant analysis allows to differentiate between depressive behaviour and normal behaviour based on the questionnaire.     

A Closer Look at Manifest Consequence

Fine (2007) argues that Frege’s puzzle and its relatives demonstrate a need for a basic reorientation of the field of semantics. According to this reorientation, the domain of semantic facts would be closed not under the classical consequence relation but only under a stronger relation Fine calls “manifest consequence.” I examine Fine’s informally sketched analyses of manifest consequence, showing that each can be amended to determine a class of strong consequence relations. A best candidate relation emerges from each of the two classes, and I prove that the two candidates extensionally coincide. The resulting consequence relation is of independent interest, for it might be held to constitute a cogent standard of reasoning that proceeds under a deficient grasp on the identity of objects.     

The self-fulfilling influence of mother expectations on children's underage drinking

This research examined whether mothers' expectations about their children's drinking behavior influenced their children's future alcohol use through self-fulfilling prophecies. It also investigated whether children's self-esteem, family social class, or the valence of mother expectations moderated this process. Analyses of longitudinal data from 505 mother-child dyads yielded results consistent with a self-fulfilling prophecy. The inaccurate portion of mother expectations predicted children's future alcohol use after accounting for relevant control variables. Moderation analyses indicated that this effect was stronger among higher self-esteem children and when mother expectations were positively valenced (i.e., when mothers underestimated their children's future alcohol use). The findings are discussed in terms of parent-child relationship quality, peer influences, self theories, and out-group stereotypes.     

Culture and collective argumentation

What are the mechanisms underlying the reproduction and change of collective beliefs? The paper suggests that a productive and promising approach for dealing with this question can be found in ontogenetic and cross-cultural studies on ‘collective argumentations and belief systems’; this is illustrated with regard to moral beliefs: After a short discussion of the rationality/relativity issue in cultural anthropology some basic elements of a conceptual framework for the empirical study of collective argumentations are outlined. A few empirical case studies are summarized; the results deliver some empirical evidence to the assumption that as the ‘logic of collective argumentations’ develops in children and adolescent there will be different and increasingly more complex constraints on the kinds of basic moral beliefs that can be collectively accepted. Most importantly, as children approach adolescence they may have acquired a ‘logic of argumentation’ which makes possible a collectively valid distinction between the ‘is’ and the ‘ought’ of some disputed particular moral issue. A comparison with a land litigation among Trobriands (Papua New Guinea) shows that the ‘logic of argumentation’ and the corresponding basic moral beliefs of Trobriands very much resemble the ‘logic of argumentation’ and moral rationality standards of (German) adolescents.