Objecting Morally

Just war theory entails that some wars may be morally unjustifiable, and hence citizens may be right to object morally to their government's waging of a war and to their being compelled to serve in it. Given the evils attendant upon even justified war, this fact sharply restricts any obligation to die for the state, and raises important questions about the appropriate state response to selective conscientious objectors. This paper argues that such people should be legally accommodated, and discusses objections to doing so, in particular, the possible erosion of the state's capacity to wage justified war, the unfairness of granting such exemptions from military service, and the impossibility of determining genuinely conscientious objection.     

Effectiveness of a Creative Arts Summer Camp: Benefits of a Short-Term,Intensive Program on Children’s Social Behaviors and Relationships

This pilot study evaluated whether a creative arts therapy program delivered through a 2-week summer day camp benefited children’s support networks and improved their general wellness. Camp staff completed ratings on the behavior of 11 children. Eleven parents (10 mothers) completed ratings on their children’s behavior. Surveys were utilized; data were analyzed using Wilcoxon t tests. Results demonstrated that camp staff observed the most significant improvements in children’s behaviors and relationships. Results of this study indicate that a social skills therapy program delivered through a creative arts summer camp can be beneficial to young children. Furthermore, these results were found during an intense, yet brief, period of time.     

Multilevel and Latent Variable Modeling with Composite Links and Exploded Likelihoods

Composite links and exploded likelihoods are powerful yet simple tools for specifying a wide range of latent variable models. Applications considered include survival or duration models, models for rankings, small area estimation with census information, models for ordinal responses, item response models with guessing, randomized response models, unfolding models, latent class models with random effects, multilevel latent class models, models with log-normal latent variables, and zero-inflated Poisson models with random effects. Some of the ideas are illustrated by estimating an unfolding model for attitudes to female work participation. We wish to thank The Research Council of Norway for a grant supporting our collaboration.     

An example of discovery research involving the transfer of stimulus control

The initial purpose of the present study was to replicate procedures for teaching preschool children to recruit attention at appropriate times by having an experimenter signal the availability and unavailability of attention (i.e., arrange a multiple schedule involving reinforcement and extinction; Tiger & Hanley, 2004). Following the development of discriminated social responding, the schedule-correlated stimuli were removed (i.e., a mixed schedule of reinforcement was arranged). However, discriminated responding continued during these conditions. Further evaluation suggested that stimulus control over children's social responding had transferred from the schedule-correlated stimuli to the delivery of reinforcement. The effect of a history of reinforcement under multiple-schedule conditions on performance under mixed schedules was then replicated with 2 participants in a reversal design. These findings suggest that following experience with schedule-correlated stimuli, these stimuli may be removed with only modest disruption to discriminated responding.     

交叉分类群体的理科性别刻板印象

为探讨以性别与专业构成的交叉分类群体的理科性别刻板印象,研究采用了内隐联想测验和自我报告两种方式,分别从内隐和外显两个加工层面对其予以考察.结果发现,内隐层面上四类交叉分类群体都存在理科性别刻板印象,但外显层面上只有理科男性、 文科男性和文科女性存在该刻板印象,而理科女性不存在.该结果表明理科性别刻板印象非常顽固,即使...     

高中文理分科及学生认知方式对阅读理解影响的实验研究

以高中二年级学生为被试,探讨文理分科、不同认知方式的学生对不同体裁文章及对文章不同信息加工层次的学习效果的影响。结果表明,（1）文理分科、学生认知方式对学生阅读成绩的影响不显著;（2）从总体上看,学生对不同体裁的文章学习效果不同,对说明文的学习明显优于对散文的学习;在文章不同信息的加工层次上,学生对细节的记忆优于对结构的把握;（3）对于不同体裁的文章,学生在信息加工层次上存在差异,对散文的细节记忆好于对结构的把握,对说明文的结构把握好于对细节的记忆。     

Concurrent ratio schedules: Fixed vs. variable response requirements

Rats were trained on concurrent fixed-ratio variable-ratio or concurrent fixed-ratio mixed-ratio schedules of food reinforcement. The variable-ratio schedule was composed of an arithmetic sequence of 11 ratios that averaged 50; the mixed-ratio schedule consisted of equiprobable ratios of 1 and 99. Fixed-ratio values, varied over experimental conditions, included 25, 35, 50, 60, and 99. The proportion of responses and time allocated to the variable- or mixed-ratio schedule increased as the size of the fixed ratio increased. For most subjects, higher proportions of responses and time were maintained on the fixed-ratio schedule at fixed-ratio values of 25 and 35; higher proportions of responses and time were maintained on the variable- or mixed-ratio schedule at fixed-ratio values of 50 or higher. On concurrent variable-ratio fixed-ratio schedules, the tendency for responding to be maintained exclusively by one schedule was related to the difference in local reinforcement rates obtained from those schedules. Exclusive responding was approximated when the difference in local reinforcement rates obtained from those schedules was large; responding was more evenly distributed between the schedules as the difference in the rates at which reinforcement was obtained from each decreased.     

Effects on responding of mixed and multiple schedules of signalled and unsignalled response-dependent electric-shock delivery

Responding in two rats was maintained under mixed and multiple variable-interval 35-sec variable-interval 35-sec food delivery schedules. Similar rates and patterns of responding occurred in each component of the two schedules. Mixed and multiple variable-interval 65-sec variable-interval 65-sec schedules of response-dependent shock delivery were super-imposed on the mixed and multiple baseline food schedules, respectively. In one component, a 5-sec stimulus was presented on the average of once every 65 sec. Offset of the stimulus arranged that the next response would produce shock. In the other component, no stimulus was presented during the 5-sec period. The mixed schedule of signalled and unsignalled dependent shock delivery yielded similar degrees of response suppression in each component, but the multiple schedule of shock delivery revealed differential degrees of response suppression. Considerably more suppression occurred in the component not associated with the preshock stimulus, thus implicating the discriminative functions of the correlated stimulus.     

Modeling Lifelong Learning: Collaborative Teaching across Disciplinary Lines

Most courses in colleges and universities are taught by only one instructor. This is often necessitated by the financial exigencies of educational institutions, but is also due to an academic tradition in which the ideal is a single expert teaching in a single discipline. The rapidly changing realities of both the higher education and job markets, however, have called the traditional ideal into question. Interdisciplinary collaborative teaching is one way to adapt to the needs of twenty‐first‐century students, by modeling lifelong learning for students and inviting instructors to be more deliberately reflective about disciplinary assumptions, learning styles, and pedagogies.