Regression-based techniques for statistical decision making in single-case designs

The present study evaluates the performance of four methods for estimating regression coefficients used to make statistical decisions about intervention effectiveness in single-case designs. Ordinary least square estimation is compared to two correction techniques dealing with general trend and a procedure that eliminates autocorrelation whenever it is present. Type I error rates and statistical power are studied for experimental conditions defined by the presence or absence of treatment effect (change in level or in slope), general trend, and serial dependence. The results show that empirical Type I error rates do not approach the nominal ones in the presence of autocorrelation or general trend when ordinary and generalized least squares are applied. The techniques controlling trend show lower false alarm rates, but prove to be insufficiently sensitive to existing treatment effects. Consequently, the use of the statistical significance of the regression coefficients for detecting treatment effects is not recommended for short data series.     

In hindsight, life flows from left to right

Three experiments investigated the mental representation of meaningful event sequences. Experiment 1 used extended (5 min long) naturalistic scenes excerpted from commercial movies. Experiments 2 and 3 presented everyday activities by means of sequences of six photographs. All experiments found both left–right and distance effects in an order decision task, suggesting that when contemplated in hindsight, experienced events unfold along a left-to-right analogical mental line. Present results are discussed in the context of the mental representation of other kinds of ordinal sequences, and other left–right effects reported in non-ordinal domains.     

Tailoring visual images to fit: Value creation in persuasive messages

The present studies aimed to extend Regulatory Fit Theory in the domain of persuasive communication by (a) using printed advertisement images without any verbal claim, instead of purely or mostly verbal messages; (b) selecting the images to fit the distinct orientations of regulatory mode rather than regulatory focus; and (c) priming regulatory mode orientation instead of relying on chronic prevalence of either locomotion or assessment orientation. We found that recipients primed with a locomotion orientation experienced fit, and were more persuaded, when exposed to “dynamic” versus “static” visual images; conversely, recipients primed with an assessment orientation experienced fit and were more persuaded when exposed to “static” versus “dynamic” images. Our findings show that the experience of fit can be induced by visual messages, resulting in positive effects in terms of attitude toward product advertisement and estimated price of advertised products. Copyright © 2010 John Wiley & Sons, Ltd.     

Assessment of tobacco craving by means of the affective image visualization paradigm

Smoking cues that increase craving are subjectively described by smokers as pleasant rather than unpleasant. However, it remains controversial whether the motivational nature of these smoking cues is consistent with an appetitive or aversion-relief model of tobacco craving. In the two studies presented here, the Bioinformational model of emotion proposed by Lang was used to address this issue. In study I, 40 smokers (10 males) assessed a set of tobacco-related pictures and a subset of standard pleasant, neutral, and unpleasant pictures in order to examine how craving relates to the three general dimensions of emotion: valence, arousal, and dominance. Results showed that the tobacco-related images were all assessed as appetitive, and craving was correlated positively with valence (r = .863, p < .0001) and arousal (r = .923, p < .0001) and negatively with dominance (r = −.504, p < .002). In study II, 24 female abstinent smokers were examined using Lang’s startle modulation paradigm in order to assess whether tobacco-related pictures, compared to standard pleasant and unpleasant ones, inhibited the startle response, consistent with an appetitive model of tobacco craving. Contrary to expectations, the startle response during visualization of tobacco-related pictures was more similar in magnitude to the response to unpleasant than to pleasant images, a finding inconsistent with an appetitive model of tobacco craving.     

An alternative to the search for single polymorphisms: toward molecular personality scales for the five-factor model

There is growing evidence that personality traits are affected by many genes, all of which have very small effects. As an alternative to the largely unsuccessful search for individual polymorphisms associated with personality traits, the authors identified large sets of potentially related single nucleotide polymorphisms (SNPs) and summed them to form molecular personality scales (MPSs) with from 4 to 2,497 SNPs. Scales were derived from two thirds of a large (N = 3,972) sample of individuals from Sardinia who completed the Revised NEO Personality Inventory (P. T. Costa, Jr., & R. R. McCrae, 1992) and were assessed in a genomewide association scan. When MPSs were correlated with the phenotype in the remaining one third of the sample, very small but significant associations were found for 4 of the 5e personality factors when the longest scales were examined. These data suggest that MPSs for Neuroticism, Openness to Experience, Agreeableness, and Conscientiousness (but not Extraversion) contain genetic information that can be refined in future studies, and the procedures described here should be applicable to other quantitative traits.     

Images of Thin and Plus-Size Models Produce Opposite Effects on Women’s Body Image,Body Dissatisfaction,and Anxiety

Mainstream media’s promotion of dangerously thin female images likely lowers self-image satisfaction and contributes to pathological body concerns and disordered eating among women. We tested upward and downward social-comparison effects on self-evaluations by exposing 145 Spanish women to images of thin (upward) or overweight (downward) models. We also tested whether explicitly asking or not asking participants to compare themselves with the models would moderate social comparison effects. Exposure to thin models deteriorated body image while increasing body dissatisfaction and anxiety. Conversely, exposure to overweight models improved body image and decreased body dissatisfaction but it did not affect anxiety. Whether participants were asked to compare themselves to the models explicitly or implicitly had no effect on the participants’ responses. Furthermore, pre-existing body image concerns were not associated with the pre-to-post exposure effects. We propose that increasing the representation of normal weight and overweight women in media advertisements could help to neutralize or at least reduce the negative impact of media’s practice to idealize thin and overly thin women as symbols of female beauty.

     

Control and legacy as functions of perceived criticality in major incidents

This paper outlines a model that captures the experiences of 28 Senior Officers who have managed some of the most significant police incidents in the UK in the past 5 years. The process for capturing the model rests on ‘pragmatic psychology’ (Fishman, 1999; Alison, West & Goodwill, 2003), a paradigm that recognizes practitioners' experiences as a central component of research and policy development. We utilized a set of connected electronic notebooks to enable each critical incident manager to log their experiences and views of the case that they managed. As each individual logs this information, it is simultaneously distributed to all participants. Thus, information is rapidly shared, stimulating further thought and discussion. Following the initial knowledge‐sharing phase, participants reorder the material into themed categories that can then be scored against specific criteria (in this case ‘impact’ and ‘ease’). This session revealed that senior officers consider a combination of two co‐occurring issues as most significant in defining the ‘criticality’ of the incident: (i) how direct an impact the facet has on the enquiry at hand; and (ii) whether that issue will influence how the service will be judged (by the community, the victims and the media). These issues were perceived as the most complex and difficult to deal with. We argue that this perception is a joint function of perceived lack of control alongside the belief that judgment and blame regarding the incident will ultimately reside with them as managers. Copyright © 2004 John Wiley & Sons, Ltd.     

Benign and disruptive disturbances of the supervisory field1

Inspired by Baranger, Baranger and Mom’s notion of psychoanalytic bastion, we describe an unconscious collusion between analytic supervisors and supervisees. This collusion’s purpose is to avoid the anxiety inherent in the psychoanalytic field and that enters unprocessed into the supervisory field. The supervisor/supervisee dyad’s emotional experience can be fleeting, with moderate intensity, but can slow down the process. This can happen sometimes in any supervisory situation. Or it can become permanent and with greater intensity and bring the entire process to a standstill and to a disruption of the supervisory field. We call the first situation a ‘benign disturbance of the supervisory field’, the second a ‘disruptive disturbance of the supervisory field’. We illustrate both disturbances using supervisory material. Our purpose is to show how to detect these disturbances, understand them, and manage them.