Rates of Non-Suicidal Self-Injury: A Cross-Sectional Analysis of Exposure

Research on the social influences associated with rates of non-suicidal self-injury (NSSI) is scarce and limited to studies of contagion within inpatient and residential treatment settings. Using an archival dataset that included 1,965 college students, the current study examined whether exposure to acts of NSSI and/or suicidal behavior in others was associated with increased rates of NSSI. Results supported hypotheses in that participants who knew someone who had engaged in NSSI only, or knew someone who engaged in both NSSI and suicidal behavior were more likely to have engaged in NSSI compared to those not exposed. The findings provide preliminary, albeit indirect, evidence of the potential for social modeling to influence rates of NSSI within college students. Directions for future studies are offered.     

A Comparison of Study Session Formats on Attendance and Quiz Performance in a College Course

We compared two formats for optional study sessions offered to students in a research methods course. Study sessions alternated between a game format (e.g., Behavioral Jeopardy) and a student-directed question and answer format, presented in counterbalanced order across different sections of the same course. The results of the alternating treatments design in Study 1 indicated that, despite improvements in quiz performance relative to baseline, there were no consistent differences between the two formats on attendance at the study sessions or on weekly quiz performance. Similar results were obtained in a systematic replication (Study 2) in which opportunities to respond to game questions were equated across study sessions.     

高考生学校决策问卷的编制

目的：编制高考考生学校决策问卷。方法：对400名大学一年级新生入学一周后进行了测量,通过项目分析、探索性因素分析、验证性因素分析、信度分析等方法对量表的结构效度、和信度进行了检验。结果：问卷的总体内部一致性系数为0.911（n=392,p〈0.01）。探索性因素分析发现,所有项目因子载荷都在0.570-0.833之间,四个因子解释方差比率总计69.55%。验证性因素分析显示NNFI、CFI、RMSEA指数分别为0.95,0.96,0.090。结论：高考生学校决策问卷具有较好的信度和效度,是评定高考生学校决策的有效工具。     

从多元概化理论看高考综合能力测试的改进

通过多元概化理论的研究发现,高考综合能力测试（2001,广东）的总体信度达到了可以接受的水平（0.784）。但测验中各部分对总方差的贡献程度与预定的赋分比例有较大差距。其中,地理和政治的贡献度偏低,化学和历史的贡献度偏高。这表明有（历史和化学）偏科特点的考生得到了较高的综合分数。又经决策(D)研究发现,增加地理部分的题量会反常地降低测验的总体信度,这说明有不少高分考生答错或主动放弃了地理科题目。因此,如何有效控制各部分的实际贡献程度、避免负面导向是当前高考综合能力测试亟待解决的问题。     

Sexual assault on college campuses: Is an ounce of prevention enough?

This article provides a construct-by-construct review of the effectiveness of sexual asault prevention programs in modifying sexual assault-related attitudes, cognitions, emotions, and behaviors. This article also discusses variables that may moderate program effectiveness, variables that may mediate program effectiveness, methodological issues, programs for special populations, and iatrogenic effects. In general, sexual assault prevention programs have been shown to be effective in producing short-term reductions in rape-supportive attitudes. There is insufficient evidence, however, to conclude that such programs are effective in reducing the incidence of sexual assault.     

Operant theory and methodology in infant vocal conditioning

The numerous mechanisms of behavior change in infant development are sometimes difficult to distinguish. Although it is agreed that elicitation and reinforcement both influence infant learning, the distinction between these two learning mechanisms was clarified in response to K. Bloom's (1984, Journal of Experimental Child Psychology, 38, 93-102) commentary. The theoretical and methodological assumptions of an functional analysis of infant behavior were made explicit in the context of the C. L. Poulson study (1983, Journal of Experimental Child Psychology, 36, 471-489). The rationale for the use of DRO schedules to control for elicitation effects of continuous reinforcement and the inadequacy of noncontingent schedules for this purpose were also discussed.     

The development of anticipatory hand orientation during infancy

The development of infants' prehensile adjustments regarding the orientation of objects was investigated. Five- and nine-month-olds (N = 16 per group) were presented with horizontally and vertically oriented dowels to determine at what point during the reach, hand orientation approximated that of the dowel. Nine-month-olds rotated their hands appropriately, early in the course of the reach, i.e., before tactual contact of the dowel, whereas five-month-olds did so mostly after tactual contact. Analyses of the effects of trials within the experimental session indicated that this age difference was not associated with practice or fatigue effects. The results are discussed in relation to the development of visual control of prehensile behavior.     

Resistance to yielding and the expectation of cooperative future interaction in negotiation

The expectation of cooperative future interaction (ECFI) encouraged especially high joint benefit (the total of the two bargainers' individual outcomes) when resistance to yielding was high, but especially low joint benefit when resistance to yielding was low. Process data suggest that this finding can be explained as follows: When resistance to yielding is high, ECFI encourages problem solving and reduced contentious behavior; when resistance to yielding is low, ECFI encourages a collapse of aspirations. The results support Filley's (1975) dualconcern model and cast doubt on Deutsch's (1973) blanket assertion that a cooperative process leads to constructive conflict resolution.     

TV cameras,public self-consciousness,and mock juror performance

In Chandler v. Florida (1981), the U.S. Supreme Court ruled that the presence of television cameras in the courtroom does not violate a defendant's constitutional right to a fair trial. Since then, several states have expanded their TV coverage rights, and the controversy has intensified. The present study tested opponents' argument that TV cameras distract jurors, thereby reducing their reliance on evidence in the decision-making process. Fifty-one community adults watched a 95-min videotape of a civil trial in the presence or absence of a camera. No effects were obtained on verdicts, awards, or a series of self-report measures. The camera did impair subjects' recall of the evidence, but this effect was dually limited—(a) consistent with an adaptation hypothesis, an initially strong distractive effect gradually diminished, resulting in a net post-trial loss of information that was not statistically significant, and (b) consistent with an individual differences hypothesis, the camera impaired the recall of subjects who were low but not high in dispositional public self-consciousness. These findings were discussed in terms of their practical implications for courtroom management and their contribution to the self-awareness literature.     

Hearing your voice through bone and air: Implications for explanations of stuttering behavior from studies of normal speakers

Cherry and Sayers (1956) reported that stutterers have problems dealing with sound fed back to the ears through bone. Their experimental support for this claim is reexamined. It is shown that their technique does not produce the same bone-conducted feedback as produced by the speaker while speaking. Their results are reinterpreted as showing that stutterers have problems when speaking in the presence of low frequency sound because of its masking properties, rather than because the sound originates in bone-conducted feedback.