閃光信号的頻率选择实驗研究

一、問題 在現代生产技术中,人和机器可以看作是一个統一的系統。这一系統的中心环节是人。人凭借自己的感官从仪表和信号得到有关机器的运轉状态和生产过程的变化的信息,經过一系列的思惟活动,然后作出判断,并通过操作活动对机器和生产过程进行控制和調节。关于人和机器的这一方面的关系,以及关于机器、仪表、信号和操纵装置的設計如何适应人的感知、思惟和运动的特点,以便使“人机系統”达到最高效率的研究,已經形成一个新的学科分支,即“工程心理学”。本研究所涉及的閃光信号的頻率选择問題,就是属于工程心理学的范围。     

Examination of psychiatric symptoms in student athletes

In the present study, the authors examined the severity of psychiatric symptoms in undergraduate recreational (noncompetitive) athletes (n = 64) and National Collegiate Athletic Association (NCAA; competitive) athletes (n = 72). The results indicated that the 2 groups were similar in the severity of psychiatric symptoms. The recreational and NCAA athletes combined (n = 136) showed less severe global psychiatric symptoms when they were compared with an undergraduate control group (n = 435). The implications of the study are discussed in the context of those findings.     

Heritability estimates versus large environmental effects: the IQ paradox resolved

Some argue that the high heritability of IQ renders purely environmental explanations for large IQ differences between groups implausible. Yet, large environmentally induced IQ gains between generations suggest an important role for environment in shaping IQ. The authors present a formal model of the process determining IQ in which people's IQs are affected by both environment and genes, but in which their environments are matched to their IQs. The authors show how such a model allows very large effects for environment, even incorporating the highest estimates of heritability. Besides resolving the paradox, the authors show that the model can account for a number of other phenomena, some of which are anomalous when viewed from the standard perspective.     

FRANK CONVERSATIONS

I contend that Jews, Christians, and Muslims who seek peace should not be reluctant to acknowledge the existence of their sometimes profound disagreements, or to affirm the truth of their own beliefs and practices. Since this places me at odds with John Hick, I analyze his views, granting the strengths of his critical realism and arguing that his revisionist–pluralist theory of religion has significant limitations for interreligious dialogue. Since the veridical–pluralist alternative I propose facilitates rather than stifles disagreement, I examine three different conceptions of dialogue that acknowledge the importance of disputes among those searching for truth. I also discuss three virtues—honesty, empathy, and humility—whose cultivation would make us less likely to fail in our search for truth and the peace that is its sign and fruit.     

Intelligence: new findings and theoretical developments

We review new findings and new theoretical developments in the field of intelligence. New findings include the following: (a) Heritability of IQ varies significantly by social class. (b) Almost no genetic polymorphisms have been discovered that are consistently associated with variation in IQ in the normal range. (c) Much has been learned about the biological underpinnings of intelligence. (d) "Crystallized" and "fluid" IQ are quite different aspects of intelligence at both the behavioral and biological levels. (e) The importance of the environment for IQ is established by the 12-point to 18-point increase in IQ when children are adopted from working-class to middle-class homes. (f) Even when improvements in IQ produced by the most effective early childhood interventions fail to persist, there can be very marked effects on academic achievement and life outcomes. (g) In most developed countries studied, gains on IQ tests have continued, and they are beginning in the developing world. (h) Sex differences in aspects of intelligence are due partly to identifiable biological factors and partly to socialization factors. (i) The IQ gap between Blacks and Whites has been reduced by 0.33 SD in recent years. We report theorizing concerning (a) the relationship between working memory and intelligence, (b) the apparent contradiction between strong heritability effects on IQ and strong secular effects on IQ, (c) whether a general intelligence factor could arise from initially largely independent cognitive skills, (d) the relation between self-regulation and cognitive skills, and (e) the effects of stress on intelligence.     

Teenagers,contraception, and pregnancy

The Hospital of the University of Pennsylvania started a family planning counseling program for teenage nulliparae in a nearby public high school in 1973-1974. Educational, informal counseling, and discussion sessions were held in the school on a weekly basis by a social worker, family planning nurse, family planning counselor, and male outreach worker. Following the classes, almost half the girls attended the hospital's Teen Clinic for physical examination and contraceptive supplies. Parental permission was not necessary for attendance at the classes or at the hospital clinic. A second program was started at another school in the year 1974-1975. The goal of the program was to offer family planning information in the early teen years and prevent unwanted pregnancy.     

Examining the Effects of Skill Level and Reading Modality on Reading Comprehension

The purpose of this study was to examine the effects of reading skill and reading modality (oral versus silent) on reading comprehension. A normative sample of sixth-grade students (N = 74) read texts aloud and silently and then answered questions about what they read. Skill in word reading fluency was assessed by the Test of Word Reading Efficiency, Second Edition (Torgesen, Wagner, & Rashotte, 2012), and students were identified as either normal or at-risk readers based on those scores. A 2 (reading skill) X 2 (reading modality) mixed factorial ANOVA was conducted. Results revealed that both normal and at-risk readers demonstrated better comprehension of text read orally as compared to text read silently. The middle school curriculum requires independent silent reading, yet students may enter middle school without the literacy skills they need to be successful. These findings suggest that students transitioning to middle school may benefit from additional pedagogical support in silent reading comprehension.     

Performance Assessment: Is Creative Thinking Necessary?

The study examined the relationship between creative thinking ability of 13 to 14‐year old female students and their ability in tackling problem solving situations in the science laboratory. The latter has been variously labeled as hands‐on problem‐solving tasks, scientific investigations, and performance assessment. No tutoring or guidance concerning how to solve the problem was provided. The scientific concepts embedded in the tasks are within the scope of the 13 to 14‐year old students, but the setting for the tasks are novel and not likely to be dealt with by their class teacher during the course of instruction. The solution process for these tasks is likely to involve the following components: preliminary trialing, planning, performing, communicating, interpreting and reflecting on the task to provide feedback for further refinement of the task (Department of Education & Science, U.K., 1987; Toh, 1990). The paper looks into the correlation of creative thinking ability and each of the six performance components, as well as the overall performance.