Are attentional dwell times inconsistent with serial visual search?

Duncan, Ward, and Shapiro (1994) estimated that attention must remain focused on an object for several hundred milliseconds before being shifted to another object, and they referred to this period as theattentional dwell time. An important implication of these long estimates of the dwell time for models of visual search is that the search process must not involve an item-by-item serial scanning mechanism. If it did, then searching through an array of items would require enormous amounts of time, which—based on data from visual search experiments—it does not. The present report, however, provides evidence that the long estimates of attentional dwell time were caused, at least in part, by the use of masked targets. Implications of these variable estimates of the attentional dwell time for models of visual search are discussed.     

Preparing dichotic tapes using a digital music synthesizer

Digital music synthesizers represent audio signals in the form of binary coded numbers. These binary coded numbers can be manipulated by the operator, thereby altering the audio signal in a variety of ways. The present article describes how these capabilities can be used to produce perfectly aligned dichotic tapes in which the stimulus items are matched on all extraneous (timbre, amplitude, duration) factors.     

College students' Facebook stalking of ex-partners

There are abundant anecdotes and warnings of inappropriate behaviors on social networking sites, particularly about Facebook. The purpose of the present study was to examine whether individuals obsessively monitor or harass their ex-partners on Facebook (related to general "Facebook stalking") and, if so, whether those individuals would also engage in cyber obsessional pursuit (COP) and obsessive relational pursuit (ORI), which are categories of cyberstalking and stalking. A total of 411 valid participants answered questions about the ways they communicated with their ex-romantic partners using Facebook, resulting in three factors: Covert Provocation, Public Harassment, and Venting. Each category of Facebook harassment was related to perpetration of COP and ORI. Additionally, participants who engaged in COP were almost six times more likely to also perpetrate ORI. If participants admitted to engaging in some types of stalking behaviors, they did so online, offline, and on Facebook. Implications for social networking site usage and stalking laws are discussed. There is a kernel of truth to the popular term "Facebook stalking."     

The effect of a supervisory development program on leadership style

The purpose of this study was to investigate the effect of a supervisory development program on leadership style, conceptualized as the amount of consideration and structure demonstrated by supervisors. One hundred male supervisors of a government railways department were randomly selected and then assigned randomly to either receive training (n=50) or not to be trained (n=50). The program was a 22-week residential course, training participants in human relations and structuring skills. Measures of the supervisors' consideration and structure were obtained from 100 male subordinates of the supervisors 4 weeks prior to, and 2 months after, training. At pre- and post-test, supervisors in the experimental and control groups rated the amount of consideration and structure they felt they should use. Analysis of variance with significant interaction effects revealed that the training program enhanced self and subordinate-rated consideration and structure.     

Backward Blocking and Recovery from Overshadowing in Human Causal Judgement: The Role of Within-compound Associations

We replicated and extended a project by Dickinson and Burke (1996) that concerned human causal judgement. In a medical diagnostic setting, college students' ratings of the causal efficacy of target cues showed retrospective revaluation: relative to a proper control condition, ratings of target cues both increased ('recovery from overshadowing') and decreased ('backward blocking') during a second stage of training in which competing cues, but not target cues, were presented. These changes in causal judgements were exhibited only by subjects who had learned which target and competing cues were paired with one another during the first stage of training. These results cannot be explained by the Rescorla-Wagner (1972) model of associative learning, but they can be explained by the revised model of Van Hamme and Wasserman (1994); the revised model assigns non-zero salience to nonpresented target stimuli whose memories or representations are retrieved by competing stimuli that had previously been paired with those target stimuli.     

Manipulation and force as sexual coercion tactics: conceptual and empirical differences

This study examines the relationship between perpetrator characteristics, situational characteristics, and type of sexual coercion tactics used to obtain sexual contact (including sexual intercourse) with an unwilling partner. Men who used manipulation or force were compared to each other and to men who engaged in only consensual sex. Participants were college men drawn from the first wave of a 5-year longitudinal study. Stepwise discriminant function analyses, univariate analyses of variance (ANOVA), and chi(2) analyses tested group differences. As predicted, men who used force reported more childhood sexual abuse, witnessed more domestic violence, were more accepting of male violence, and were less likely to endorse love as a motive for sex than men in both the manipulation and consent groups. Men in the force group were also more likely to have had a casual relationship with the woman, and to be drinking and also intoxicated during the coercive incident than men in the manipulation group. Hypothesized differences between men who used force and manipulation regarding parental physical punishment, traditional gender role attitudes, delinquency, hedonistic and dominance motives for sex, prior sexual contact, and the length of the relationship were not supported. The results suggest that types of tactic used in sexual assaults can be distinguished on the basis of person and situational variables and that knowledge of these differences can facilitate future research, as well as rape deterrent and intervention programs.     

Behavioral Health Adjustment in Reserve Component Soldiers During a Noncombat Deployment to Africa

This study benchmarked rates of mental health problems, adjustment difficulties, and perceptions of unit climate among 505 U.S. soldiers (primarily National Guard) deployed to the Horn of Africa in 2012. In addition, the study examined whether differences across these outcomes exist between combat veterans (n = 239) and noncombat veterans (n = 242). Rates of mental health problems among soldiers on this noncombat deployment were lower than rates typically found among soldiers on combat deployments. Furthermore, soldiers without previous combat experience had lower rates of mental health problems and aggression than combat veterans. Similar differences were evident when adjustment difficulties and unit climate variables were compared. Although combat veterans could be valuable in training new soldiers, the results of this study indicate that combat veterans may need more targeted resources to facilitate their adjustment if they are to be optimally utilized.     

The Editor's Dilemma

Dr. Burnham agreed to be interviewed regarding his views on Christian education from his perspective of 15 years of living in Africa and his current dealings with health issues in Africa. He is an expert on onchocerciasis or “river blindness” and has worked with the World Health Organization. In addition to being a physician, he has a Ph.D. in tropical disease epidemiology and a Masters in Clinical Tropical Medicine.     

Theory,Philosophy, and Descriptive Research

Abstract

With its international constituency, the Seventh-day Adventist Church has a large a membership that primarily comprises non-native English speakers. Students have had challenges in understanding and appreciating the writings of one of the church’s co-founders, Ellen White. The purpose of this study was to analyze the Testimonies for the Church and to quantitatively identify the difficulties with comprehending White’s writing. The results reveal that the readability is consistent with a middle school reading level; the text is moderately formal in nature; the sentiment of the text is neutral; and White’s writing style varies little over time.     

Spiritual Warfare in American Education

Why do some children convergently accept the faith of their families, while other children divergently reject their family beliefs? McClintock's qualitative analysis of 21 sets of parents and adult children found 12 of the sets to be convergent and 9 to be divergent. Convergent children tended to experience the church as warm and loving and their personality styles were cooperative and collaborative. Divergent children were independent and their religious beliefs were personal and individualistic. Implications for the home, school, and church are discussed.