Motor Development During the First Year: A Comparative Study

This investigation of the motor development characteristics of Brazilian infants during the 1st year of postnatal life compared the findings with those of a widely used U.S. sample (N. Bayley, 1993). Analysis of the 12 monthly assessments indicated that Brazilian infants' scores increased with age, with the greatest increase occurring over the first 8 months. As a general comparison, the results are similar to the U.S. patterns of development. However, the Brazilian sample exhibited mean scores significantly lower than the U.S. sample's in the 3rd, 4th, and 5th months. More specific analyses indicated that the difference within these months was on tasks of sitting and grasping. Possible explanations for the differences focus on variations in child-rearing practices and the influence of biological maturation in early movement behaviors.     

Constant Temperature Bath for Liquid Electrodes

Using the Semantic Differential technique, this study of 345 male and female undergraduates replicated and extended work by Deaux and Farris on the effects of Ss' and stimulus persons' sex on cognitive complexity scores, response extremity, and overall evaluational affect. The dimension of threat was additionally examined regarding the tendency of disliked persons to be more complexly evaluated than liked persons. While the Deaux-Farris results were generally reaffirmed---males being more complex than females, both sexes being more complex with disliked than liked others, and females giving the more extreme and favorable responses---a seemingly anomalous finding with the present data was the positive correlation between cognitive simplicity and threat scores associated with disliked others, a result speculatively linked with the personality dimension of authoritarianism.     

Considering the Knowledge You Have: Effects on Realism in Confidence Judgements

In three experiments, the hypothesis was tested that the realism of subjects' item-specific confidence judgements of their own answers to general knowledge questions would be improved by making the subjects heed content which might be expected to lower their confidence ratings. In each experiment, all subjects answered knowledge questions and then rated their confidence in their chosen answer. Before each question, the subjects in the experimental condition assessed the extent of their knowledge in a knowledge-area encompassing the knowledge question. Experiments 1 and 2 differed only in the design of the knowledge-area assessment scale. In Experiment 3, when making knowledge-area assessments, the subjects were asked to find examples of knowledge they lacked in the knowledge-area. Both Experiments 2 and 3 showed significantly improved realism in the subjects' confidence judgements. An aggregate assessment of the total number of questions believed to be answered correctly, given by the subjects at the end of Experiments 2 and 3, showed underconfidence in the experimental condition, particularly in Experiment 3. The results support the idea that the content active in subjects' memory at the time when confidence judgements are made affects their realism. Furthermore, our results show that the realism of subjects' item-specific confidence judgements can be improved without giving feedback.     

Political Authority,Practical Identity,and Binding Citizens

Abstract

Allen Buchanan (2002) argues that it doesn’t matter whether a state has authority in the sense of being able to create binding obligations for its citizens, so long as it is morally justified in wielding political power. In this paper, I look at this issue from a slightly different angle. I argue that it matters a great deal whether citizens relate to their state in an obligatory fashion. This is for two reasons. First, a fully morally justified state must be an efficacious state; it must be able to realise its values and make its rules stick. My contention will be that enduring stability can only be secured when citizens, or at least a significant proportion of citizens, are tangibly bound to regulate their conduct in accordance with a principle of obedience to just states. Second, it is only when individuals interact in the right way with the justification for state power that the state itself as a pervasive and coercive entity does not pose a problem for them as reason-responsive agents. In fact, under the right circumstances, submission to state authority can greatly enhance autonomy as it facilitates collective responses to challenges that individuals would struggle to overcome alone.     

The Effects of Cognitive Ability and Conscientiousness on Performance Over Time: A Censored Latent Growth Model

This study examined the extent to which cognitive ability and conscientiousness predicted initial academic performance (i.e., grade point average) and changes in performance over the course of college students' careers. A censored latent growth model that controlled for initial performance was used. Results showed positive effects of cognitive ability and conscientiousness on initial performance, but only positive effects of conscientiousness on performance change. However, because initial performance negatively affected performance change, cognitive ability and conscientiousness negatively indirectly affected performance change through initial performance. In addition, results revealed cognitive ability accounted for more variance in initial performance than conscientiousness, and conscientiousness accounted for more variance in performance change than cognitive ability. Finally, results show that, beyond the third semester, conscientiousness is a better predictor of student performance than cognitive ability.     

Self-Regulation and Performance in High-Fidelity Simulations: An Extension of Ego-Depletion Research

This article extends the research literature related to “ego-depletion.” Although numerous studies have focused on the self-regulatory failure associated with ego-depletion, the extant literature is generally characterized by relatively simple behavioral manipulations and dependent measures. Two studies are described that extend previous ego-depletion findings by employing a high-fidelity, customer service simulation as an ego-depleting manipulation (Study 1) and by using performance on a cognitively demanding naval combat simulator as a dependent measure (Study 2). Results of both studies show the generalizability of the effects of ego-depletion; the implications for self-regulatory failure in more naturalistic settings are discussed.     

Relationship Between Psychological Skill Profiles and Soldier Physical Fitness Performance

We examine the structure of soldier's psychological skills and assess the relationship between psychological skills profiles and physical performance with data from 427 soldiers from a Stryker Brigade. Exploratory factor analyses results provided empirical support for a three-factor structure that included foundation skills, psychosomatic skills, and cognitive skills. Cluster analysis revealed three emergent psychological skills profile groups: (a) strong skills, (b) weak skills, and (c) fearful focus clusters. Soldiers in the strong psychological skill profile group performed better than their peers in the other profile groups on the Army Physical Fitness Test (APFT) performance measure. We discuss the implications of our findings for theory, research, and practice.     

I don't believe but I pray: spirituality,instrumentality, or paranormal belief?

These three studies are among the first to systematically compare five Chinese religious groups on intrinsic (spiritual) and extrinsic (instrumental and paranormal) orientation. In Study 1, a Chinese version of the Index of Core Spiritual Experiences was developed. In Studies 2 and 3, spirituality and religious involvement was found to be greatest among Christians, followed in order by Buddhists, Taoists, traditional nones, and other nones. An instrumental purpose for religious activities and paranormal belief was found to be highest among Taoists, followed in order by Buddhists, traditional nones, other nones, and Christians. The results are consistent with the conclusion that Christianity offers the least support for an extrinsic religious orientation and the most support for an intrinsic religious orientation.