Understanding smoking after acute illness: An application of the sentinel event method

The sentinel event theory provides a stepwise approach for building models to understand how negative events can spark health behaviour change. This study tested a preliminary model using the sentinel events method in a sample (N = 300) of smokers who sought care for acute cardiac symptoms. Patients completed measures on: smoking-related causal attribution, perceived severity of the acute illness event, illness-related fear and intentions to quit smoking. Patients were followed up one week after the health event and a seven-day timeline follow back was completed to determine abstinence from tobacco. Structural equation models were performed using average predictor scale scores at baseline, as well as three different time anchors for ratings of illness severity and illness-related fear. Quit intentions, actual illness severity and age were the consistent, positive and independent predictors of seven-day point prevalence abstinence. Additional research on the influences of perceptions and emotional reactions is warranted.     

A Generalized Strategy for Measuring Performance in the Velocity-Position Phase Plane

Subjects pressed a key down as fast as possible but controlled the response duration of the keypress. The task required long (300 ±100 msec) and short (150±50 msec) durations in both simple (long only or short only) and choice (mixed long and short) conditions. Choice reaction time was slower than simple reaction time, but reaction time for long and short durations did not differ significantly for either simple or choice conditions. This finding fails to support a study by Klapp, Wyatt, and Lingo (1974) which found reaction time differences between long and short durations for choice but not simple conditions.     

The Influence of Social Consensus Information on Intergroup Helping Behavior

Previous research demonstrates that social consensus information (information about other people's beliefs) has a powerful influence on intergroup attitudes. The present study examined the influence of consensus information on helping behavior. White participants were provided with favorable or no consensus information about African Americans, and then we assessed their racial attitudes and their willingness to help an African American versus a White person. Replicating previous findings, we found that individuals who received favorable, as compared to no, consensus information had more favorable attitudes toward African Americans. More importantly, our results demonstrated that participants who received favorable consensus information were more likely to help an African American individual than those who did not receive consensus information. Consensus information did not influence behavior toward a White person. In understanding when and why consensus information influences stereotypes and prejudice, we hope to create a useful method to reduce negative intergroup attitudes and behaviors.     

The Receiver's Dilemma: Impressions Formed in Response to Impression Management

Two studies examined the extent to which individuals' racial attitudes are influenced more by interdependent others' attitudes than people with whom they do not mutually depend. Study 1 demonstrated that participants significantly changed their racial attitudes when they received disagreement feedback from an ingroup friend, whereas there was no change in attitudes when participants received disagreement feedback from an ingroup stranger, agreement feedback, or no feedback. Furthermore, feelings of interdependence mediated the relationship between feedback from a friend versus stranger and changes in racial attitudes. In Study 2, we manipulated interdependence and found that interdependent partners altered their racial attitudes after receiving disagreement information, whereas independent partners did not. The importance of interdependent others' attitudes in reducing prejudice is discussed.     

Of Viruses and the Mother-Child Dyad

Moralizing the Environment: Countryside change, farming and pollution, by P. Lowe, P. J. Clark, S. Seymore and N. Ward. London: UCL Press, 1997     

The Effects of Elevated Arousal and Mood on Maximal Strength Performance in Athletes

Optimal arousal models contend that high arousal contributes to inhibited athletic performance, whereas there is reversal theory research which indicates that high positive arousal may enhance performance. To test these claims, 22 male and 6 female elite athletes were induced into high arousal telic (goal-directed) and high arousal paratelic (non goal-directed, process focussed) motivational states and tested on a standard hand strength task. Personalized guided imagery techniques and paced breathing were used to change psychological and physiological arousal. Significant increases in strength performance occurred when arousal was high and experienced as pleasant excitement in the paratelic condition (i.e., high positive arousal). Heart rate and other indicators of parasympathetic and sympathetic nervous system activity were not found to mediate between psychological arousal and performance. Where athletic performance requires maximal motor strength over a short period, performance benefits of high arousal may be maximized by restructuring motivational state.     

Character Education: Christian Education Perspectives

Character is defined broadly by leading authorities, including concepts such as practicing apt behavior and teaching right from wrong. Virtue and moral undertones tend to pervade most experts' use of character, although in secular settings, the notion of ethics is more prominent. Overall, developing in students a desire for the good is how most authorities understand the construct. Implementing character in the public and Christian schools, apart from a Judeo-Christian view of the construct, leaves schools open to values clarification, situational ethics, and other post-modern foundational options. Character development, at least at the conceptual level, is at the heart of all education—Christian or non-Christian.     

Laypeople do use sample variance: The effect of embedding data in a variance-implying story

When using sample data to decide whether two populations differ, laypeople attend to the difference between group means, but largely overlook within-group variability (Obrecht, Chapman, & Gelman, 2007 Obrecht, N. A., Chapman, G. B. and Gelman, R. 2007. Intuitive t-tests: Lay use of statistical information. Psychonomic Bulletin & Review, 14: 1147–1152.  [Google Scholar]). We show, first, that laypeople know about and use story-implied variability when making pairwise comparisons. Then we demonstrate that participants’ sensitivity to variance in a dataset is boosted when presented in a context that implies consistent variance information. Statistical data were couched in stories about electrical conductivity measurements obtained from element samples (low-variability category) or body weight measurements from samples of peoples (high-variability category). We manipulated, between participants, whether the data variance matched or mismatched the story-implied variability. Participants who received data in a matching context showed high sensitivity to variance, while those in the mismatching condition did not. Laypeople use statistical data to make reasonable inferences when those data are provided in a context that makes sense.     

The influence of social consensus information on intergroup attitudes: the moderating effects of ingroup identification

Two studies examined the role of ingroup identification in the influence of social consensus information (information about others' beliefs) on intergroup attitudes. Research demonstrates that consensus information influences individuals' intergroup attitudes. However, the extent to which individuals identify with the group providing consensus information seems important to understanding consensus effects. In Study 1, 100 high or low ingroup identifiers received information that other ingroup members held favorable or unfavorable attitudes toward African Americans and then provided their own attitudes. In Study 2, 250 participants completed an ingroup identification manipulation (high, low, or control) before receiving favorable or no consensus information. Results of both studies demonstrated that ingroup identification moderated consensus effects, such that high identifiers were more susceptible to others' beliefs than individuals in the low identification and control conditions. In determining critical factors involved in consensus effects, we hope to create a useful method to promote favorable intergroup attitudes and behaviors.