Self-reported use of different forms of aggression in late adolescence and emerging adulthood

Two studies investigated the psychometric properties of a self-report measure of commonly recognized forms of aggression (FOA) that could be used to efficiently gather aggression data in large samples. EFA and CFA in Study 1 suggested that a five-factor model (Physical, Property, Verbal, Relational, and Passive-Rational) best represented the data across high school and college students. However, factor analyses in Study 2 using an ethnically diverse university sample revealed a four-factor solution (combining Physical and Property items). As a confirmation of the construct validity of FOA, physical and property aggression were lower, and verbal and passive-rational aggression were higher in college versus high school students. Gender differences were observed across FOA subscales, except relational aggression. FOA subscales correlated as expected with other anger and personality scales. Overall, the data revealed adequate psychometric properties for the FOA and suggest that current category distinctions (e.g., direct-indirect) may not adequately account for different forms of aggression. Researchers may want to reevaluate these categories.     

Temperament and intuition: A commentary on Feltz and Cokely

In this paper, we examine Adam Feltz and Edward Cokely’s recent claim that “the personality trait extraversion predicts people’s intuitions about the relationship of determinism to free will and moral responsibility” (INSERT REFERENCE). We will first present some criticisms of their work before briefly examining the results of a recent study of our own. We argue that while Feltz and Cokely have their finger on the pulse of an interesting and important issue, they have not established a robust and stable connection between extraversion and compatibilist-friendly intuitions.     

The Effectiveness of Audiovisual Self-Instructional Materials in Teaching Child-Care Skills to Parents with Intellectual Disabilities

Children of parents with intellectual disabilities are at risk for neglectful care due to parenting skill deficiencies. Previous studies have shown that parents with intellectual disabilities can improve child-care skills with intensive behavioral training, but self-instruction has not been explored. We evaluated the efficacy of self-instructional pictorial child-care manuals with and without accompanying audiotaped instruction using a multielement design with 13 parents with intellectual disabilities. The self-instructional materials were effective in teaching 22 of 26 skills to levels seen in parents without intellectual disabilities. Eighty-one percent of the skills maintained over a 1-15 month follow-up period and self-learning effects were replicated when the parents received self-instructional materials for the original no-training control skill. Despite the low literacy skills of the parents, for most of them no advantage was found in adding the audiotape to the illustrations. Three parents only reached criterion after an audiotape was added to the manual alone skill. Consumer satisfaction ratings were uniformly high and those parents who stated a preference, preferred the pictorial manuals without, as opposed to with, the audiotape. These findings suggest that a majority of parents with intellectual disabilities may improve their parenting skills with low cost, low tech, self-instructional materials.     

Computer controlled interactive video simulation for motor skills research

Researchers examining skilled performance in the laboratory must establish contextual relevance to the usual performance environment to ensure that the obtained data truly reflect expertise in the skill under investigation. Interactive video simulation is a viable method for providing such ecological validity. This paper describes the development to date of such a simulator and outlines two sports-performance studies which demonstrate the validity and reliability of the configuration in competitive situations. Further development of the simulator is possible through new technologies and through the assembly of specific interfaces for other motor skills. The paradigm also has potential as a training resource for teaching the specific knowledge necessary for expert levels of performance.     

The delay-reduction hypothesis of conditioned reinforcement and punishment: Observing behavior

Pigeons responded in an observing-response procedure in which three fixed-interval components alternated. Pecking one response key produced food reinforcement according to a mixed schedule. Pecking the second (observing) key occasionally replaced the mixed-schedule stimulus with the stimulus correlated with the fixed-interval component then in effect. In Experiment 1, observing was best maintained by stimuli correlated with a reduction in mean time to reinforcement. That finding was consistent with the conditioned-reinforcement hypothesis of observing behavior. However, low rates of observing were also maintained by stimuli not representing delay reduction. Experiment 2 assessed the role of sensory reinforcement. It showed that response rate was higher when maintained by stimuli uncorrelated with reinforcement delay than when the stimuli were correlated with a delay increase. This latter result supports a symmetrical version of the conditioned-reinforcement hypothesis that requires suppression by stimuli correlated with an increase in time to reinforcement. The results were inconsistent with hypotheses stressing the reinforcing potency of uncertainty reduction.     

Categorization of Ambiguous Sentences as a Function of a Changing Prosodic Parameter: A Dynamical Approach

The present study investigates the dynamics of changes in interpretation of ambiguous sentences. The sentences used had alternative interpretations with different surface structures (bracketing). Continua were created by systematic manipulation of prosodic cues (relative foot duration), resulting in stimulus sentences that spanned the range between the two interpretations. Continua were presented to subjects who were requested to indicate as quickly as possible which meaning they perceived. The pattern of responses and response times revealed the presence of hysteresis. That is, when the values of prosodic parameters are congruent with both interpretations, the individual's recent history decides which meaning will be perceived. Thus, we can treat this categorization process as a transition from an initially stable meaning that loses stability with variations in prosody (our control parameter). The same underlying dynamics have been observed in studies of perception of syllables and aspects of visual perception. Apart from demonstrating the same characteristics of pattern formation at various levels of cognition, the study points to the usefulness of the dynamical approach in the investigation of language understanding.     

Base-rate training without case cues reduces base-rate neglect

Base-rate neglect is a persistent phenomenon in which subjects do not place sufficient weight on the probabilities of occurrence of relevant events. Two experiments with college students support the hypothesis that base-rate neglect may be minimized by providing base-rate training in the absence of case, or witness, cues, prior to introducing (or reintroducing) these cues. In Experiment 1, the hypothesis was supported by both within-subjects and between-groups assessments; in Experiment 2, the hypothesis was supported while the effects of instructions and a correction procedure were found to be minimal. In Experiment 1, but not in Experiment 2, training with case cues present also reduced base-rate neglect, but this effect was not sufficient to account for the effect of cue-absent base-rate training. Correction trials led some subjects to detect that the task contingencies were random; however, neither this nor actually telling subjects after the experiment that the task was indeed random led invariably to subjects’ describing the optimal strategy (which was to choose the richer alternative exclusively).     

Structures and strictures: Some functional limitations on the course of cognitive growth

A functional (as opposed to structural) theory of intellectual development is presented, and used to generate specific performance models for Piagetian tasks involving the control of variables. On the basis of these models, it is concluded that intelligent, field independent 7- and 8-year-olds should be able to acquire the control of variables scheme, even though they have not yet acquired either conservation of weight or the combinatorial system. Preliminary data (n = 52) are presented to support this conclusion. They are discussed with regard to Piaget's formal theory of intellectual development, and the functional limitations of development on learning.     

PROGRAMMING THE GENERALIZATION OF A GREETING RESPONSE IN FOUR RETARDED CHILDREN1

Reinforcement techniques of prompting and shaping were employed to develop hand-waving, a useful social greeting response, in four institutionalized retarded subjects. A multiple-baseline design across subjects demonstrated the reliable functioning of the training procedures. Specifically, it showed that training and maintenance of the greeting response by one experimenter was not usually sufficient for generalization of the response to the more than 20 other members of the institution staff who had not participated in the training of the response. However, high levels of generalization to staff members were recorded for three subjects over periods ranging from one to six months after a second experimenter trained and maintained the response in conjunction with the first experimenter. The fourth subject, although never receiving training by a second experimenter, showed similar results following a second training by the first experimenter.     

NEO-PIAGETIAN THEORY: RETROSPECT AND PROSPECT

In the present article, the neo-Piagetian theories that were presented in the previous articles are placed in historical context; then compared and contrasted. It is suggested that all the theories arose in response to a common dilemma, namely that of building a revised theory of development which would preserve the strengths of classical Piagetian theory, while elminating its weaknesses. Since one of the strengths of the classical theory was its ability to explain the universal features of cognitive development, most of the new theories retained the core set of structural postulates which made this explanation possible. This gives the new theories a strong family resemblance with regard to their structural claims. Since one of the weaknesses of the classical theory was its inability to explain the aspects of cognitive development that are not universal, most of the new theories have modified and/or added to this set of core postulates, and specified a set of structural transformation processes which go beyond the classical theory as well. In this latter regard there are more dissimilarities among the new theories than there are similarities. Two reasons for this divergence are suggested. The first is that Piaget's structural transformation model was less clearly falsified than other aspects of his theory, by the data on cognitive-developmental non-universality. It was therefore less clear which aspects of the transformation model should be retained, and which eliminated. The second reason is that current theorists are divided on the question of which other theoretical approach - among those that are currently available in other branches of psychology - offers the greatest promise, when it comes to extending Piaget's transformation model in a productive fashion.