Choke or thrive? The relation between salivary cortisol and math performance depends on individual differences in working memory and math-anxiety

In the current study, we explored how a person's physiological arousal relates to their performance in a challenging math situation as a function of individual differences in working memory (WM) capacity and math-anxiety. Participants completed demanding math problems before and after which salivary cortisol, an index of arousal, was measured. The performance of lower WM individuals did not depend on cortisol concentration or math-anxiety. For higher WM individuals high in math-anxiety, the higher their concentration of salivary cortisol following the math task, the worse their performance. In contrast, for higher WM individuals lower in math-anxiety, the higher their salivary cortisol concentrations, the better their performance. For individuals who have the capacity to perform at a high-level (higher WMs), whether physiological arousal will lead an individual to choke or thrive depends on math-anxiety.     

Remote control and children's understanding of robots

Children use goal-directed motion to classify agents as living things from early in infancy. In the current study, we asked whether preschoolers are flexible in their application of this criterion by introducing them to robots that engaged in goal-directed motion. In one case the robot appeared to move fully autonomously, and in the other case it was controlled by a remote. We found that 4- and 5-year-olds attributed fewer living thing properties to the robot after seeing it controlled by a remote, suggesting that they are flexible in their application of the goal-directed motion criterion in the face of conflicting evidence of living thing status. Children can flexibly incorporate internal causes for an agent’s behavior to enrich their understanding of novel agents.     

Command use and compliance in staff communication with elderly residents of long-term care facilities

Verbal communication between nursing assistants and individuals with dementia can be challenging, particularly during hands-on caregiving tasks. Although there are many aspects of verbal communication that can affect the quality of an interaction, one potentially important communication variable is the types of commands issued by nursing assistants when they need a resident to complete a task. The purpose of this study was to examine the kinds of commands used by nursing care staff when they interact with patients with dementia during activities of daily living. Commands were categorized according to their feasibility/specificity as well as form. An additional goal of this study was to measure compliance and noncompliance rates associated with the various categories of commands. Results indicate that alpha commands (clear, concise, and feasible) account for higher compliance and less noncompliance compared with beta commands (ambiguous, interrupted, and not feasible). In addition, commands that are stated directly, that clarify a previous command, and that are repeated exactly produce better compliance. It is concluded that training nursing staff to change the types of commands they provide during caregiving tasks may reduce distress experienced by both staff and residents.     

How trajectories of reasons for alcohol use relate to trajectories of binge drinking: National panel data spanning late adolescence to early adulthood

Developmental changes in both alcohol use behaviors and self-reported reasons for alcohol use were investigated. Participants were surveyed every 2 years from ages 18 to 30 as part of the Monitoring the Future national study (analytic weighted sample size N = 9,308; 53% women, 40% college attenders). Latent growth models were used to examine correlations between trajectories of binge drinking and trajectories of self-reported reasons for alcohol use across young adulthood. Results revealed developmental changes in reasons for use and correlations between the patterns of within-person change in frequency of binge drinking and within-person change in reasons for use. In particular, an increase in binge drinking between ages 18 and 22 was most positively correlated with slopes of using alcohol to get high and because of boredom. Continued binge drinking between ages 22 and 30 was most strongly correlated with using alcohol to get away from problems. Almost no moderation by gender, race, college attendance, employment, or marital status was found. Binge drinking and reasons for alcohol use traveled together, illustrating the ongoing and dynamic connections between changes in binge drinking and changes in reasons for use across late adolescence and early adulthood.     

Snacking while watching TV impairs food recall and promotes food intake on a later TV free test meal

Eating while viewing TV may impair memory of food intake and promote over‐consumption on a later meal. In Experiment 1, females ate a similar amount of snack–food either with or without TV. Later, participants who had snacked with TV ate more food on a TV‐free lunch and were less accurate in recalling their earlier snack–food intake. Experiment 2 explored whether the nature of the TV content might alter these effects. Using a similar design, females watched boring, sad or funny TV, or no‐TV at all. Relative to the no‐TV control, all TV while snacking conditions ate a similarly greater amount on the later TV‐free test lunch. Recall accuracy for the snack phase was also similarly poorer in all TV conditions. These findings suggest that eating with TV per se impacts on later food intake, and a mnemonic‐based explanation seems to be the best account for these findings. Copyright © 2010 John Wiley & Sons, Ltd.     

Putting the relationship between social anxiety and alcohol use into context: A daily diary investigation of drinking in response to embarrassing events

The goal of this study was to clarify mixed findings regarding the association between dispositional social anxiety and drinking among college students by using a daily diary method to examine whether a within-person social-contextual event moderated the relationship between social anxiety and alcohol use. College students (n = 476) completed a measure of dispositional social anxiety and then for 30 days reported whether they experienced an embarrassing event in public and the amount of alcohol they drank each day. We examined whether experiencing an embarrassing event moderated the relationship between dispositional social anxiety and alcohol use for same-day, same-evening, next-day, and next-evening drinking. While there was a positive relationship between dispositional social anxiety and alcohol use on evenings when an embarrassing event occurred earlier that day, this appeared to be driven by a reduction in drinking among those low in social anxiety. Individuals with high social anxiety drank in the evening regardless of embarrassing event occurrence. Results suggest that people with low social anxiety show an adaptive response to embarrassing events by lowering drinking on such evenings, while those with high social anxiety may drink to reduce their already high levels of anxiety independent of daily social events.     

Testing effects for common versus proper names

The present study examines the testing effect as a function of item meaningfulness. In Experiments 1 and 2 participants studied lists of words that could serve as proper names or occupations (e.g., Mr Baker or baker), with the items given in a name context for one group and an occupation context for a second group. During an intervening phase participants restudied some items and were given a cued recall test (Experiment 1) or a free recall test (Experiment 2) on other items. On a final free recall test memory was better for tested items than studied items in both the name and occupation contexts. Experiment 3 followed the same procedure as Experiment 1, except that participants studied lists of proper names that do not have alternative uses in the English language (e.g., Mr Anderson) or studied concrete nouns (e.g., letter). Tested items were better remembered on a final test than studied items, and there was no interaction with type of study material. These results show that the testing effect extends to proper names, material that is commonly assumed to differ from common names on several dimensions.     

Perceptions of parental attitudes toward body and eating: associations with body image among Black and White college women

This study examined Black and White young women's perceptions of parental body- and eating-related attitudes and behaviors from growing up and the relations of these parental factors with their current body image. Female undergraduates (97 Black women, 179 White women) completed questionnaires of perceptions of parental attitudes/behaviors related to body image and eating and of their current body image, operationalized as weight/shape concern. Results indicated that perceived parental communication was more strongly related to body image than perceived parental modeling in both ethnic groups, and that there were some differences in how frequently Black and White women reported encountering specific maternal messages about the body or eating. Perceived parental modeling and communication constructs were related to body image in similar ways for both ethnic groups after controlling for BMI. Future research directions are discussed.     

Facets of Right‐Wing Authoritarianism Mediate the Relationship Between Religious Fundamentalism and Attitudes Toward Arabs and African Americans

Since the September 11 terrorist attacks, hate crimes against Arabs have increased in the United States. Despite recent increases in anti‐Arab attitudes, little psychological research has been conducted to understand this prejudice. Across two studies, we tested a theoretical model of Arab and African‐American prejudice. We found the aggression facet of right‐wing authoritarianism mediated the relationship between religious fundamentalism (RF) and prejudice toward Arabs and African Americans. Results are interpreted in light of previous research on cognitive rigidity, RF, and prejudice, and implications are made for political leaders conversing about Arab nations and peoples.     

Development and psychometric evaluation of the Personal Growth Initiative Scale-II

The original Personal Growth Initiative Scale (PGIS; Robitschek, 1998) was unidimensional, despite theory identifying multiple components (e.g., cognition and behavior) of personal growth initiative (PGI). The present research developed a multidimensional measure of the complex process of PGI, while retaining the brief and psychometrically sound properties of the original scale. Study 1 focused on scale development, including theoretical derivation of items, assessing factor structure, reducing number of items, and refining the scale length using samples of college students. Study 2 consisted of confirmatory factor analysis with 3 independent samples of college students and community members. Lastly, Study 3 assessed test-retest reliability over 1-, 2-, 4-, and 6-week periods and tests of concurrent and discriminant validity using samples of college students. The final measure, the Personal Growth Initiative Scale-II (PGIS-II), includes 4 subscales: Readiness for Change, Planfulness, Using Resources, and Intentional Behavior. These studies provide exploratory and confirmatory evidence for the 4-factor structure, strong internal consistency for the subscales and overall score across samples, acceptable temporal stability at all assessed intervals, and concurrent and discriminant validity of the PGIS-II. Future directions for research and clinical practice are discussed.