Criterion Validity of the MSI-BPD in a Community Sample of Women

The criterion validity of the McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD; Zanarini et al., Journal of Personality Disorders 17:568–573, 2003) as a quick screening device for borderline personality disorder (BPD) was evaluated alongside the more established Personality Diagnostic Questionnaire-4+ Borderline subscale (PDQ-BPD; Hyler 1994) using receiver operator characteristic (ROC) analysis. Both instruments demonstrated adequate criterion validity with the diagnosis of BPD derived from a clinician-administered diagnostic interview. Optimal cutoffs for each measure were determined using sensitivity, specificity, and positive and negative likelihood ratios. The previously established cutoff for the MSI-BPD of seven (Zanarini et al., Journal of Personality Disorders 17:568–573, 2003) was confirmed. The current study provides the first support for the use of the MSI-BPD as a screening measure for use in community-based studies of BPD.     

Using Ethnography in Applied Sport Psychology

The acceptance of qualitative research in applied sport psychology is growing steadily, yet there are continued calls for greater methodological diversity in this research. To this end, we offer ethnography to extend and enhance our understanding of applied sport psychology. Ethnography is aimed toward understanding the culture of a particular group from the perspective of the group members. The group culture, then, will lend insight into the behaviors, values, emotions, and mental states of group members. Ethnographers employ multiple methods to gain a comprehensive understanding of the social environment and perceptions of the members of the social group. In this paper, we discuss the epistemological and methodological foundations of ethnography. Then, using research examples related to applied sport psychology, we describe processes involved ethnographic research. Finally, we explore the issues of representation and legitimacy in ethnography.     

Infants' On-line Segmentation of Dynamic Human Action

Identifying the developmental origins of scientific thinking, as well as its endpoint, provides an essential framework for understanding its development. The origins of scientific thinking are claimed here to lie in attainments in epistemological understanding, beginning with the understanding achieved at about 4 years of age that assertions generated by human minds are distinguishable from an external reality against which they can be compared. Despite this achievement, children between 4 and 6 years of age exhibit an epistemological category mistake regarding the source of knowledge. They confuse a theory making it plausible that an event occurred and evidence indicating that the event did occur, as the source of their knowing that the event occurred. Appreciation of this distinction develops rapidly during this age range and reflects increasing mastery of an epistemological understanding we argue to be of foundational status for the development of scientific thinking, defined here as the consciously controlled coordination of theory and evidence.     

Extraversion and emotional reactivity

Six mood induction studies and a meta-analysis were conducted to test 2 models of the extraversion-pleasant affect relation. The affect-level model suggests that extraverts should be happier than introverts in both neutral and positive mood conditions. The reactivity model posits that extraverts react particularly strongly to pleasant stimuli and that they should be happier than introverts only in positive conditions. In all studies, extraverts failed to exhibit greater emotional reactivity when pleasantness items were analyzed. When activated positive affect items were analyzed, results were mixed. The meta-analysis confirmed that there is only a slight reactivity effect overall, and this effect emerges only in activated positive affect items. Furthermore, the meta-analysis showed that the correlation in neutral conditions is strong enough to support the affect-level model.     

Neural substrates of linguistic prosody: evidence from syntactic disambiguation in the productions of brain-damaged patients

The present investigation focussed on the neural substrates underlying linguistic distinctions that are signalled by prosodic cues. A production experiment was conducted to examine the ability of left- (LHD) and right- (RHD) hemisphere-damaged patients and normal controls to use temporal and fundamental frequency cues to disambiguate sentences which include one or more Intonational Phrase level prosodic boundaries. Acoustic analyses of subjects' productions of three sentence types-parentheticals, appositives, and tags-showed that LHD speakers, compared to RHD and normal controls, exhibited impairments in the control of temporal parameters signalling phrase boundaries, including inconsistent patterns of pre-boundary lengthening and longer-than-normal pause durations in non-boundary positions. Somewhat surprisingly, a perception test presented to a group of normal native listeners showed listeners experienced greatest difficulty in identifying the presence or absence of boundaries in the productions of the RHD speakers. The findings support a cue lateralization hypothesis in which prosodic domain plays an important role.     

Stimulus sequence and the exponent of the power function for loudness

In two experiments, 15 and 13 subjects estimated the loudness of 12 sound-pressure levels (38-104 dB; 6-dB intervals) of a 1000-Hz tone by the method of magnitude estimation with a modulus assigned to the first stimulus presented. The tone duration was 1 sec. and the interstimulus interval was 6 sec. The presentation order was systematically ascending-descending in one experiment and balanced-irregular in the other. The results indicate that (1) loudness is a power function of sound pressure with an exponent of 0.60 for the systematic order and 0.29 for the irregular order. (2) For both the irregular and systematic orders, a large step-size (12 or 18 dB) between the stimulus on Trial n and on Trial n-1 (or n-3) results in a slight assimilation effect. This also occurs for the small step-size (6 dB) in the irregular order. (3) The size of momentary exponents (based on two points, Trials n and n-1 or n-3) depends on the sound pressures of successive stimuli, whether the steps are positive or negative, and whether the stimuli have been presented in systematic or irregular order. For positive steps, the momentary exponent is lower for a soft tone (Trial n) than for a loud tone, whereas for negative steps the momentary exponent is lower for a loud tone than for a soft tone. These effects ar more pronounced when these stimuli are presented in an irregular order. A relative judgment model is offered for magnitude estimation. It assumes that subjects judge the loudness of a stimulus in terms of three reference markers: the minimum and maximum sound pressures as well as the sound pressure of the previous stimulus.     

Transformation theory of size judgment.

Perception of size is assessed by having observers adjust a comparison target at a fixed distance to match the size of a standard located at different distances. Results depend on instructions, target orientation, and available stimulus cues. A mathematical theory assumes that the brain performs an inverse transformation on the proximal information impinging on the retina to recover the original distal size of the target. Results depend on the target visual angle, and the effective target distance and orientation applied in performing the inverse transformation. Effective values are linked to instructions, target location, and stimulus cues. Two models are developed and successfully fit to empirical data. One emphasizes the distance parameter; the second, the orientation parameter.     

Mexican-American adolescent sexuality and sexual knowledge: an exploratory study

This article reports the findings of a study designed to examine the sexual knowledge, attitudes, and practices of low-income Mexican- American adolescents. The participants in the study were all about to begin a sex education program in a community health organization in East Los Angeles. The study involved 84 adolescents aged 14-19, 97% of who identified themselves as Mexican-American (the remainder identified themselves as Latino). 51 of the subjects were female and 33 male. The participants completed a 43-item questionnaire concerning demographics, sexual experience and contraceptive use, knowledge of birth control methods, and attitudes towards sexuality and birth control. Only 18 (21%) of the subjects indicated ever having sex. But among this group, 83% reported not using contraception during their last intercourse, and 61% reported never using contraception. Only 22% reported using contraception regularly. Concerning the knowledge of different birth control methods,many of the participants were able to list several methods, but their responses indicated a lack of accurate and specific knowledge about contraceptive methods. In addition to the 43-item questionnaire, 27 of the subjects also completed a sexual and contraceptive knowledge questionnaire. The topics included contraceptive effectiveness, the menstrual cycle, and fertilization. The scores on the questionnaire were low, with an average score of 33% of correct answers. Finally, all 84 participants responded to a sexual attitude questionnaire, which revealed a generally traditional attitude toward the importance of have children, virginity, and the relationship between sex and love.     

The creative role of doubt in religion

This essay contains four arguments in defense of the creative role of doubt in religion. Within a specified framework or context it is argued that: 1) creative doubt is a means of constructively acknowledging human finitude, 2) creative doubt can play a role in keeping one's fundamental beliefs alive and vital, 3) creative doubt, by continually challenging the full adequacy of religious symbols, serves as a check against the idolatrous worship of one's own religious language, and 4) the avoidance of doubt may reflect a relinquishing of freedom and a dehumanizing quest for certainty.