Statistical power analysis for one-way analysis of variance: A computer program

To facilitate the computation of statistical power for analysis of variance, Cohen developed the index of effect sizef, defined as theSD between groups divided by theSD within groups. A microcomputer program for statistical power allows the user to compute the value off in any of several ways: by specifying the mean andSD for every cell in the ANOVA; by specifying the mean value for the two extreme cells and the pattern of dispersion for the remaining cells; by estimating the proportion of variance in the dependent variable that will be explained by group membership; and/or with reference to conventions for small, medium, and large effects. The program will compute power for any single set of parameters; it will also allow the user to generate tables and graphs showing how power will vary as a function of effect size, sample size, andα.     

Measuring effective functioning in the elderly: an application of Erikson's theory

This study seeks to assess effective functioning within Erikson's epigenetic theory of development, in a sample of 143 Elderhostel participants who were administered the Inventory of Psychosocial Balance (IPB) and the California Psychological Inventory (CPI) Self-Realization (Sr) scale. A correlational analysis indicated no major systematic sex differences, but significant intercorrelations between the IPB scales and the Self-Realization scale. Multiple regression analyses indicated that in men, Trust is the most important variable, with Generativity and Intimacy yielding negative weights, whereas for women, Identity is the major component, with Industry, Autonomy, Generativity, and Trust yielding negative weights. The results support the utility of the IPB as a vehicle to study psychosocial development in the elderly.     

Intrapersonal Emotion Regulation Difficulties and Maladaptive Interpersonal Behavior in Adolescence

Research on Child and Adolescent Psychopathology - Although most research conceptualizes emotion regulation as an internal process (i.e., intrapersonal), emotions are frequently regulated in an...     

Attention training toward and away from threat in social phobia: effects on subjective, behavioral, and physiological measures of anxiety

Social phobics exhibit an attentional bias for threat in probe detection and probe discrimination paradigms. Attention training programs, in which probes always replace nonthreatening cues, reduce attentional bias for threat and self-reported social anxiety. However, researchers have seldom included behavioral measures of anxiety reduction, and have never taken physiological measures of anxiety reduction. In the present study, we trained individuals with generalized social phobia (n = 57) to attend to threat cues (attend to threat), to attend to positive cues (attend to positive), or to alternately attend to both (control condition). We assessed not only self-reported social anxiety, but also behavioral and physiological measures of social anxiety. Participants trained to attend to nonthreatening cues demonstrated significantly greater reductions in self-reported, behavioral, and physiological measures of anxiety than did participants from the attend to threat and control conditions.     

Remembering the silver lining: reappraisal and positive bias in memory for emotion

Reappraisal and distraction, unlike suppression, are known to decrease the intensity of negative emotion in the short term. Little is known about long-term characteristics associated with emotion regulation strategies, however. In a longitudinal study, we examined the relation between the strategies people reported using to regulate emotions during a stressful situation and their later memory for their emotions. Students in Italy rated the intensity of positive and negative emotions they were experiencing as they prepared for their high school exit exam. They also rated the extent to which they were regulating emotion using reappraisal, distraction, and suppression. Six weeks later, students recalled their pre-exam emotions. The more students reported engaging in reappraisal before the exam, the more they overestimated positive emotion and underestimated negative emotion when recalling their experience. The association between reported reappraisal and memory bias was partially mediated by positive changes over time in students' appraisals of the exam preparation experience. Reports of engaging in distraction and suppression were not associated with memory bias. Because remembered emotion guides future choices, these findings suggest that reappraisal is a highly adaptive strategy for coping with stressful situations, not only in the short run, but also in the long run.     

Physical activity, sedentary behavior, and childhood obesity: a review of cross-sectional studies

This systematic review examined the associations of physical activity (PA) and sedentary behavior to childhood overweight and obesity in cross-sectional studies from the last 10 years. Cross-sectional approaches are cost-effective methods for identifying relationships that can then be followed by longitudinal studies to establish temporality and create targeted interventions. The 17 selected studies contained a variety of measures of PA and sedentary behavior. PA was related negatively to child weight status in some studies; however, it was not associated in others. In general, sedentary behaviors were positively associated with weight status. However, gender differences appeared in some studies for each variable. Limitations of cross-sectional approaches were discussed, as was the need for more accurate measures of PA, sedentary behavior, and body composition.     

The six most essential questions in psychiatric diagnosis: A pluralogue part 2: Issues of conservatism and pragmatism in psychiatric diagnosis

In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM ?C whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part I of this article took up the first two questions. Part II will take up the second two questions. Question 3 deals with the question as to whether DSM-V should assume a conservative or assertive posture in making changes from DSM-IV. That question in turn breaks down into discussion of diagnoses that depend on, and aim toward, empirical, scientific validation, and diagnoses that are more value-laden and less amenable to scientific validation. Question 4 takes up the role of pragmatic consideration in a psychiatric nosology, whether the purely empirical considerations need to be tempered by considerations of practical consequence. As in Part 1 of this article, the general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances.     

Instrumentality Gives Girls the Edge: Gender-Differential Relations Between Instrumentality,Achievement Motivation,and Self-Esteem

Sex Roles - Gender differences in school are often discussed in reference to a particular type of masculinity, negative masculinity, which is often conceptualized as detrimental to success. Another...     

Pro-environmental attitudes,pro-environmental behaviours and nature-relatedness: Differences based on place preference

IntroductionThis study explored whether place preference, an individual's relationship with place, differentiated people on pro-environmental attitudes, nature-relatedness and pro-environmental behavior.ObjectiveThe aim was to provide a way to segment people and potentially inform behavior change messaging strategies targeting pro-environmental action.MethodOnline participants reported an urban/nature place preference, completed a sense of place measure in reference to this categorisation, followed by counter-balanced nature-relatedness, pro-environmental attitudes and pro-environmental behaviour measures.ResultsParticipants reported moderate-to-high levels of sense of place generally and place attachment specifically. Positive associations between sense of place, nature relatedness, pro-environmental attitudes and behaviours existed; but differed by place preference. Correlations were positive in the nature preference group but negative or non-significant in the urban preference group. Individuals with a nature preference reported higher nature-relatedness, pro-environmental attitudes and pro-environmental behavior.ConclusionThe results suggest place preference can discriminate individuals on a range of pro-environmental concepts and may have potential for behavior change strategies targeting these outcomes.