An evaluation of the accuracy of self-reports for predicting menstrual onset

Abstract

The self-reported predicted and actual day of menstrual onset were compared for 107 female volunteers. The differences between predicted and actual day of menstrual onset were compared by categorizing women into the ovulatory, premenstrual, and menstrual phases separately based on their predicted and actual days of menstrual onset. A main effect for phase suggested that menstrual women were less accurate in predicting menstrual onset. Thus, the degree of inaccuracy differed by phase and varied as a function of whether predicted or actual menstrual onset date was used to assign women to phases. These data provide a more precise indication of the degree of unreliability of self-reports and suggest a phase-accuracy connection which may be influenced by a number of factors, particularly recall of last menstrual onset.     

The prediction of safe sex behaviour: The role of intentions,attitudes, norms and control beliefs

Abstract

The present study was designed to examine the utility of the theory of reasoned action (Fishbein and Azjen, 1975) in relation to people's propensity to engage in a range of different safe sex strategies, including engaging in an exclusive sexual relationship, avoiding casual sex, and asking sexual partners about their previous sexual and IV drug use history. It was proposed that the intention to engage in a particular safe sex practice would be influenced by the person's attitude towards engaging in the practice, as well as his or her perception of the extent to which others thought they should do so (subjective norm), while behavioural intentions were proposed to predict actual behaviour. The study was also designed to examine whether, after control of the effects of the components of the theory of reasoned action, the person's generalised control beliefs would explain any additional variance in either behavioural intentions or actual behaviour. One hundred and two sexually active heterosexual students participated in the study. At the first wave of data collection, subjects completed measures of intentions, attitudes, and norms appropriate to each of the different behaviours. Measures of actual behaviour were obtained at follow-tip (three months after first period of data collection). The results of the study indicated that attitudes and norms predicted intentions for avoiding casual sex and asking sexual partners about their previous sexual and IV drug use history, while intentions predicted actual behaviour for all three safe sex strategies. Although there were no significant main effects of control beliefs on intentions or behaviour, subjects with internal control beliefs were more likely than their counterparts with external control beliefs to behave in accordance with their intentions to engage in an exclusive sexual relationship and ask sexual partners about their previous sexual and IV drug use history. Additional analyses revealed that the levels and determinants of intentions and actual behaviour were, in general, similar for males and females.     

Henze on logic,creativity and art

Book Information The Indispensability of Mathematics. By Mark Colyvan. Oxford University Press. New York. 2001. Pp. 172. Hardback, £30.00.     

Structure and organization of research efforts following the bombing of the murrah building

Abstract

In the days and weeks following the Oklahoma City bombing on April 19,1995, Oklahoma state authorities, university faculty and staff, and leading experts from across the nation formed a coalition to address issues of clinical service delivery, educational intervention, and research. This article focuses on the centralized approach applied to the administration of research endeavors. This centralization was designed to minimize revictimization of both survivors and affected families, enhance the quality of data collected, and facilitate cooperation between participating investigators. The resultant set of projects includes a variety of research methodologies and study populations and will serve to significantly enhance understanding of the mental health sequelae of such disasters.     

Health Outcomes by Closeness of Sexual Abuse Perpetrator: A Test of Betrayal Trauma Theory

Summary

In this chapter, practicing attorney Brooks Cooper illuminates how the legal tradition of applying different standards to the ad-missibility of expert and lay opinions as evidence in litigation complicates delayed-discovery sexual abuse cases. Admissibility standards have long been a source of controversy, and recent developments in law, such as the pre-trial evidentiary hearings that invoke the “gatekeeper” function of the judge under the standard enunciated in Daubert v. Mer-rell-Dow Pharmaceuticals, have become a favored strategy by the defense in an effort to bar delayed memory testimony by characterizing it as the product of unreliable science. To overcome this litigation hurdle, Mr. Cooper contextualizes the present controversy in the history of scientific evidence admissibility, tracing emerging trends in judicial opinion on scientific evidence from expert witnesses from the 1923 case Frye v. United States through the present, and offers strategies and techniques to maintain admissibility of the evidence before and during all phases of the trial.     

Treatment preference and acceptability: Epistemology and locus of control

Abstract

Treatment preference and acceptability were investigated in 397 female university students. Three audiovisual vignettes depicting a client and therapist discussing a body image disturbance problem were presented to subjects. Predictions were that subjects would prefer one of three therapy approaches—behavioral, cognitive—rational, or cognitive—constructivist—as a function of personal epistemology and locus of control. Overall, subjects rated the constructivist therapy approach more favorably than either the cognitive—rational or behavioral approach. Similarly, subjects evaluated the constructivist therapist more positively than either the rational or behavioral therapist. After degree of subject identification with the target problem was controlled, results indicated that matching subjects who had an external locus of control orientation to a behavioral or cognitive-rational therapist resulted in more favorable assessments of that therapist. Matching subjects who had an internal locus of control orientation to a constructivist therapist resulted in more positive assessments of that therapist. Implications for matching in clinical practice are discussed.     

Priming in the attentional blink: Perception without awareness?

The attentional blink refers to a reduction in accuracy that occurs when observers are required to identify the second of two rapidly sequential targets. Even when the second target cannot be reported, however, it is still capable of priming the response to a subsequent related item. At issue in the present work was whether this priming is attributable mainly to conscious or unconscious processes. To answer this question, we used an exclusion procedure that permitted an assessment of the relative dominance of conscious and unconscious processes. The results showed that second targets that are identified incorrectly are nonetheless processed extensively outside of awareness. Moreover, this processing is sufficient to prime a subsequent response for at least 1 s after the onset of the prime.     

Role of expertise and action in motion extrapolation from real road scenes

The tendency of participants to “remember” the stopping point of an event as being farther along in the direction of motion has been a topic of study for about 30 years. The purpose of the present experiment was to test the influence of two factors on motion extrapolation: (1) The involvement of participants in the action, and (2) their expertise in the domain of automobile driving. Participants viewed real driving scenes from the driver's point of view. They were divided into four groups depending upon their involvement in the action (more or less active) and their driving experience (inexperienced or experienced). In order to get half of the participants involved in the driving situation, they had to use a steering wheel to follow the contour of the road. The results showed that both of these factors increased motion extrapolation. The discussion deals with how the interrelationships between real road scenes, expertise, and action-related knowledge affect motion extrapolation.     

Blame,desert and compatibilist capacity: a diachronic account of moderateness in regards to reasons-responsiveness

This paper argues that John Fischer and Mark Ravizza's compatibilist theory of moral responsibility cannot justify reactive attitudes like blame and desert-based practices like retributive punishment. The problem with their account, I argue, is that their analysis of moderateness in regards to reasons-responsiveness has the wrong normative features. However, I propose an alternative account of what it means for a mechanism to be moderately reasons-responsive which addresses this deficiency. In a nut shell, while Fischer and Ravizza test for moderate reasons-responsiveness by checking how a mechanism behaves in a given time slice across other possible worlds, on my account we should ask how that mechanism behaves in this world over a span of time – specifically, whether it responds to reasons sufficiently often. My diachronic account is intended as a drop-in replacement for Fischer and Ravizza's synchronic account.     

Time: the back-door of perception

Fifty years ago the neurologist MacDonald Critchley observed that parietal cortex damage impaired temporal as well as spatial experience. Whereas the physiological understanding of space has since advanced, the same cannot be said of time. However, in a novel study, recording from single neurons in the macaque, Leon and Shadlen show that a region of the parietal cortex appears to encode time. The area in which these neurons reside also contains spatially selective neurons and overlaps with the area recently reported to contain number neurons.