Signal detection theory with item effects

Applications of signal detection theory (SDT) often involve presentations of different items on each trial, such as slides in a medical imaging study or words in a memory study. If factors particular to the items themselves, apart from being a signal or noise, affect observers’ responses, then ‘item effects’ are present. One way to model these effects is to use a latent continuous variable as an item ‘factor’, such as item ‘difficulty’. Details of SDT models with item effects are clarified via derivations of their implied conditional means, variances, and covariances. Intra-item correlations are defined and suggested as measures of the magnitude of item effects. The SDT-item models are simple random coefficient models and can be fit with standard software. More general models, such as item models with mixing and/or with random observer effects, are also considered.     

The eclipse of heritability and the foundations of intelligence

It is well known that theory in human cognitive ability or ‘intelligence’ is not well developed, especially with regard to sources of trait variation. Roots of theory have been sought in biology, and it is now widely accepted, on the basis of twin studies, and statistical analysis of variance, that at least half of the normal trait variation can be attributed to genetic variation, a correlation known as the trait ‘heritability’. Since the 1990s, methods in molecular biology have been adopted to go ‘beyond’ this mere statistical attribution to the identification of individual genes responsible for trait variation. More than a decade of intense effort, however, has failed to produce unambiguous, replicable findings; explanations for the ‘missing heritability’ are now being demanded; and calls for new perspectives on the roles of genes and environments in development and trait variation are being demanded. Here, I propose a dynamic systems perspective indicating how the processes in which heritability becomes missing are the very ones that provide the roots of new intelligence theory.     

Orthogonal dreams in an oblique world: A meta-analysis of the association between attachment anxiety and avoidance

The association between attachment dimensions (anxiety and avoidance) can influence measurement creation and statistical analyses. Our goal was to test the assumption that anxiety and avoidance was orthogonal in two popular measures: the ‘Experience in Close Relationships Scale - Revised’ (ECR-R) and the original ‘Experiences in Close Relationships Scale’ (ECR). Our meta-analysis of 242 studies revealed that despite both scales being highly reliable, the anxiety-avoidance correlation was higher for the ECR-R than the ECR. Other variables also moderated the association. Implications include methods of statistical analysis and recommendations for future measurement creation and use.     

Do production patterns influence the processing of speech in prelinguistic infants?

The headturn preference procedure was used to test 18 infants on their response to three different passages chosen to reflect their individual production patterns. The passages contained nonwords with consonants in one of three categories: (a) often produced by that infant (‘own’), (b) rarely produced by that infant but common at that age (‘other’), and (c) not generally produced by infants. Infants who had a single ‘own’ consonant showed no significant preference for either ‘own’ (a) or ‘other’ (b) passages. In contrast, infants’ with two ‘own’ consonants exhibited greater attention to ‘other’ passages (b). Both groups attended equally to the passage featuring consonants rarely produced by infants of that age (c). An analysis of a sample of the infant-directed speech ruled out the mothers’ speech as a source of the infant preferences. The production-based shift to a focus on the ‘other’ passage suggests that nascent production abilities combine with emergent perceptual experience to facilitate word learning.     

Statisticism in personality psychologists’ use of trait constructs: What is it? How was it contracted? Is there a cure?

‘Statisticism’ is meant to characterize a way of thinking in psychology that invests virtually boundless trust in the aptness of statistical concepts and methods to reveal the ‘lawfulness’ of human psychological functioning and behavior. In the article, I discuss how statisticism came to infect the thinking of mainstream 20th century personality investigators and how – if at all – the discipline might be cured. Unfortunately, mainstream thinking within the sub-discipline of personality psychology has long sanctioned an understanding of the statistical findings issuing from studies of individual differences in personality traits that is faithful to neither of the so-called ‘frequentist’ or ‘subjectivist’ traditions. Instead, such findings are widely regarded as a scientifically acceptable warrant for claims to knowledge about objective states of affairs existing for individuals within the samples one has studied. I suggest that the prospects for eradicating dubious fruits of this form of statisticism will hinge importantly on (a) the ability of theoretically and philosophically-oriented psychologists to re-instill within the discipline a healthy respect for the power of conceptual analysis more generally, and, following this, (b) concern within the discipline for the fact that the deep and abiding conceptual problem described above in fact does exist.     

A critical look at critical (neo)personalism: Unitas multiplex and the ‘person’ concept

This essay evaluates critically William Stern's (Stern, W. (2010). Psychology and personalism) unitas multiplex and definition of ‘person.’ Discussion of the former is restricted to the lowest psychological levels and evaluation is conducted in light of interpretive options open to the ‘targets’ of Stern's current adherents, termed ‘neopersonalists.’ It is concluded that to avoid the charge of ‘individualism,’ neopersonalist expositions of the unitas multiplex should be geared toward the strong possibility that their targets will read it as a person-ontology. Evaluation then turns to Stern's definition of ‘person,’ which is compared with elements of Hacker's (Hacker, P. (2007). Human nature: The categorial framework. Oxford: Blackwell) analysis of the same concept. Results suggest that while Stern's definition applies to ‘animal’ and ‘human being,’ it does not apply to ‘person’. A more coherent conceptual framework for neopersonalism thus is suggested. A ‘can-do teleontology’ maintains emphasis on the person's potentialities and inherent goal-oriented and goal-striving nature, avoids reduction of the person concept, relates the person to others by necessity, and is amenable to Stern's definition of ‘personality.’     

On the overlap between victimization and offending: A review of the literature

Theoretical and empirical research investigating victimization and offending has largely been either ‘victim-focused’ or ‘offender-focused.’ This approach ignores the potential theoretical and empirical overlap that may exist among victims and offenders, otherwise referred to as ‘victim-offenders.’ This paper provides a comprehensive review of the research that has examined the relationship between victimization and offending. The review identified 37 studies, spanning over five decades (1958-2011), that have assessed the victim-offender overlap. The empirical evidence gleaned from these studies with regard to the victim-offender overlap is robust as 31 studies found considerable support for the overlap and six additional studies found mixed/limited support. The evidence is also remarkably consistent across a diversity of analytical and statistical techniques and across historical, contemporary, cross-cultural, and international assessments of the victim-offender overlap. In addition, this overlap is identifiable among dating/intimate partners and mental health populations. Conclusions and directions for future research are also discussed.     

Indicative and counterfactual ‘only if’ conditionals

We report three experiments to test the possibilities reasoners think about when they understand a conditional of the form ‘A only if B’ compared to ‘if A then B’. The experiments examine conditionals in the indicative mood (e.g., A occurred only if B occurred) and counterfactuals in the subjunctive mood (A would have occurred only if B had occurred). The first experiment examines the conjunctions of events that reasoners judge to be consistent with conditionals, e.g., A and B, not-A and not-B. It shows that people think about one possibility to understand ‘if’ and two possibilities to understand ‘only if’; they think about two possibilities to understand counterfactual ‘if’ and ‘only if’. The second experiment shows that the possibilities people think about when they understand ‘only if’ are in a different temporal order (e.g., B and A) to the possibilities they think about for ‘if’ (A and B). The third experiment shows that people make different inferences from ‘only if’ and ‘if’ conditionals and counterfactuals. The implications of the results for theories of counterfactual conditionals are considered.     

The ‘circumstances’ of gestures: Proto-interrogatives and private gestures

The later Wittgenstein's emphasis on the social usage of language has been very influential in psychology, particularly in language acquisition research. This move toward a pragmatic position should also be applied to gestures in pre-linguistic children and to objects in the everyday contexts of use. The shared ‘forms of life’ presupposed by language involve pre-linguistic gestures and material ‘things’.Research on early communication has focused on proto-declarative and proto-imperative gestures. I extend this focus and propose further types of gestures: ‘proto-interrogatives’ - in which children “ask” for help or regulation from adults, and three types of ‘private gestures’ - ostensive, indexical and symbolic - in which children regulate their own behaviour. This diversity of gestures becomes apparent when objects are taken seriously. Wittgenstein's ‘language-games’ necessarily apply to games with objects and gestures as well: social meaning in all cases is emergent within the context of these ‘sign games’ and ‘circumstances.’     

Conclusion: Construction sites at the juncture of religion and gender

The articles in this special issue offer fresh definitions of ‘new’ and ‘old’, of ‘local’ and ‘world’ religions. The themes of purity, danger and fundamentalism; female leadership, mediumship, self-sexism; and natalism and nationalism are discussed. This conclusion stresses the ‘folk’ sources of ‘mainstream’ religions, and focuses on the way the articles show women to be at the juncture of changing values concerning religion and gender, reform and fundamentalism.     

An economic perspective on the Reinforcement Sensitivity Theory of personality

Reinforcement Sensitivity Theory postulates personality factors of ‘reward sensitivity’ and ‘punishment sensitivity’ linked to neural systems that control approach and avoidance, respectively. In contrast, behavioural economics distinguishes gain (‘reward’) and loss (‘punishment’) valuation systems that are orthogonal to approach/avoidance behaviour. We combined gain and loss with both their presentation and omission and found evidence for separate gain valuation, loss valuation, approach, and avoidance systems. This suggests that it is possible to integrate valuation/input and behaviour/output views of ‘reward’ and ‘punishment’ in a way that may be of use to both personality theory and economics and so forge closer links between these two major perspectives on decision-making and behaviour.     

Modulating younger and older adults’ performance in ignoring pictorial information during a word matching task

Using both behavioural and event-related potential (ERP) data, the current study sought to examine the neurophysiological underpinnings for the effect of distracting pictorial information on semantic word matching performance in younger and older adults. This was tested in the context of semantic relations between task-relevant word pairs, a task-irrelevant picture and the resultant N400 differences in ERP. Younger and older adults were shown a context word superimposed on a to-be-ignored picture, followed by a test word. Their task was to determine whether the prime and test words were semantically related. The to-be-ignored pictures were interfering (for ‘No’ trials), facilitating (for ‘Yes’ trials), or neutral (for both ‘Yes’ and ‘No’ trials) to the expected responses. The interfering and facilitatory effects of to-be-ignored pictures were assessed under more automatic and more controlled conditions by manipulating the context–test interstimulus-interval (ISI) as 50 ms and 1000 ms, respectively. The analysis of the N400 at centro-parietal sites during test word display revealed similar N400 amplitudes for the ‘No’ response trials at the two ISIs, suggesting that younger and older adults showed an equivalent effect from interfering pictures. In contrast, younger adults showed greater reductions in the N400, as compared to older adults, for ‘Yes’ trials indicating differential effects in facilitation from to-be-ignored pictorial information, but only in the long ISI condition. The data are discussed in terms of age differences in resource demanding strategy use during a semantic word matching task, specifically during controlled retrieval.     

Are children with Specific Language Impairment competent with the pragmatics and logic of quantification?

Specific Language Impairment (SLI) is understood to be a disorder that predominantly affects phonology, morphosyntax and/or lexical semantics. There is little conclusive evidence on whether children with SLI are challenged with regard to Gricean pragmatic maxims and on whether children with SLI are competent with the logical meaning of quantifying expressions. We use the comprehension of statements quantified with ‘all’, ‘none’, ‘some’, ‘some…not’, ‘most’ and ‘not all’ as a paradigm to study whether Spanish-speaking children with SLI are competent with the pragmatic maxim of informativeness, as well as with the logical meaning of these expressions.Children with SLI performed more poorly than a group of age-matched typically-developing peers, and both groups performed more poorly with pragmatics than with logical meaning. Moreover, children with SLI were disproportionately challenged by pragmatic meaning compared to their age-matched peers. However, the performance of children with SLI was comparable to that of a group of younger language-matched typically-developing children. The findings document that children with SLI do face difficulties with employing the maxim of informativeness, as well as with understanding the logical meaning of quantifiers, but also that these difficulties are in keeping with their overall language difficulties rather than exceeding them. The implications of these findings for SLI, linguistic theory, and clinical practice are discussed.     

Wittgenstein and not-just-in-the-head cognition

Wittgenstein's later writings criticize the idea that the mind is an intrinsically representational device. More or less clearly apprehending certain limitations of identifying all aspects of cognition with ‘internal representation’, certain theorists in a variety of disciplines have mostly independently reached similar conclusions, which are reflected in notions like ‘distributed,’ ‘extended,’ and ‘situated’ cognition. We explore the variety of purposes for which these terms have been introduced into psychological theorizing and relate these to Wittgenstein's philosophy of psychology.     

Graded representations in the acquisition of English and German transitive constructions

English and German children aged 2 years 4 months and 4 years heard both novel and familiar verbs in sentences whose form was grammatical, but which mismatched the event they were watching (e.g., ‘The frog is pushing the lion’, when the lion was actually the ‘agent’ or ‘doer’ of the pushing). These verbs were then elicited in new sentences. All children mostly corrected the familiar verb (i.e., they used the agent as the grammatical subject), but there were cross-linguistic differences among the two-year-olds concerning the novel verb. When English 2-year-olds used the novel verb they mostly corrected. However, their most frequent response was to avoid using the novel verb altogether. German 2-year-olds corrected the novel verb significantly more often than their English counterparts, demonstrating more robust verb-general representations of agent- and patient-marking. These findings provide support for a ‘graded representations’ view of development, which proposes that grammatical representations may be simultaneously abstract but ‘weak’.     

An especial skill: Support for a learned parameters hypothesis

We tested the ‘learned parameters’ hypothesis as an explanation of the ‘especial skill effect’. Outcome attainment and movement kinematics were recorded for 10 expert and 10 novice players performing basketball free-throw shots at five distances (11-19 ft) with a regular and heavy weight basketball. As predicted, experts performed better than expected relative to the regression equation at the 15 ft, free-throw line with the regular basketball, supporting the ‘especial skill effect’. This effect was not present for the experts when shooting with the heavy ball. Novices did not show an advantage at the free-throw line when performing with either ball. Although the outcome attainment scores support the ‘learned parameters’ hypotheses, kinematic analysis failed to identify differences in the movement pattern for the especial skill, suggesting that these skills (i.e., shooting at different distances) are not governed by separate motor programs.