Study for now,but judge for later: Delayed judgments of learning promote long‐term retention

Larsson Sundqvist, M., Todorov, I., Kubik, V. & Jönsson, F.U. (2012) Study for now, but judge for later: Delayed judgments of learning promote long‐term retention. Scandinavian Journal of Psychology 53, 450–454. Delayed judgments of learning (JOL) are assumed to be based on covert retrieval attempts. A common finding is that testing memory during learning improves later retention (i.e., the testing effect), and even more so than an equivalent amount of study, but only after a longer retention interval. To test the assertion that also delayed JOLs improve memory, the participants either studied Swahili‐Swedish word pairs four times, or they both studied (two times) and performed delayed JOLs (two times) alternately. Final cued recall test were given after either five minutes or one week. Results showed a reliable learning‐group by retention‐interval interaction, with less forgetting in the group that alternated between studying and making JOLs. The results are discussed in relation to the self‐fulfilling prophecy account of Spellman and Bjork (1992) , and in terms of study advice, the results further underscore the importance of delaying JOLs when studying and evaluating one’s ongoing learning.     

Psychometric Properties of Adult Inventory of Procrastination in a Turkish Sample

The present study assessed the psychometric properties of the Adult Inventory of Procrastination for Turkish adults. The Adult Inventory of Procrastination (AIP), General Procrastination Scale (GP), and Decisional Procrastination Scale were administered to 423 Turkish adults (183 women, 240 men; M _age = 38.7, SD = 8.24) working in the governmental institutions in Turkey. The results of the confirmatory factor analysis yielded fit index values demonstrating viability of univariate factor solution as in the original. Findings also revealed that, as predicted, the AIP score was strongly correlated with GP score (r = .66). Overall, results provided evidence for the factor validity and reliability of the Turkish version of the scale for use in Turkish adult populations.     

The contribution of self-compassion in the relationship between social support and posttraumatic growth

IntroductionDespite well-established evidence on the relationship between social support and posttraumatic growth (PTG), there remains a paucity of evidence regarding the mechanism that underlie this relationship.ObjectiveThis study examined the relationship between social support and PTG, while exploring self-compassion as an intermediatory factor in this association.MethodA cross-sectional study with 447 college students was conducted in Trabzon, Turkey. The data were analyzed using Structural Equation Modelling (SEM).ResultsResults indicated that perceived social support and self-compassion were associated with PTG. Furthermore, a significant indirect effect between social support and PTG via self-compassion emerged.ConclusionBased on the study findings, tailored intervention programs targeting self-compassion and perceived social support in trauma-exposed young adults may be useful for promoting posttraumatic growth.     

Does Ramadan Fasting Alter Body Weight and Blood Lipids and Fasting Blood Glucose in a Healthy Population? A Meta-analysis

In this study, we conducted a meta-analysis of self-controlled cohort studies comparing body weights, blood levels of lipids and fasting blood glucose levels before and after Ramadan taking into account gender differences. Several databases were searched up to June 2012 for studies showing an effect of Ramadan fasting in healthy subjects, yielding 30 articles. The primary finding of this meta-analysis was that after Ramadan fasting, low-density lipoprotein (SMD = ?1.67, 95 % CI = ?2.48 to ?0.86) and fasting blood glucose levels (SMD = ?1.10, 95 % CI = ?1.62 to ?0.58) were decreased in both sex groups and also in the entire group compared to levels prior to Ramadan. In addition, in the female subgroup, body weight (SMD = ?0.04, 95 % CI = ?0.20, 0.12), total cholesterol (SMD = 0.05, 95 % CI = ?0.51 to 0.60), and triglyceride levels (SMD = 0.03, 95 % CI = ?0.31, 0.36) remained unchanged, while HDL levels (SMD = 0.86, 95 % CI = 0.11 to 1.61, p = 0.03) were increased. In males, Ramadan fasting resulted in weight loss (SMD = ?0.24, 95 % CI = ?0.36, ?0.12, p = 0.001). Also, a substantial reduction in total cholesterol (SMD = ?0.44, 95 % CI = ?0.77 to ?0.11) and LDL levels (SMD = ?2.22, 95 % CI = ?3.47 to ?0.96) and a small decrease in triglyceride levels (SMD = ?0.35, 95 % CI = ?0.67 to ?0.02) were observed in males. In conclusion, by looking at this data, it is evident that Ramadan fasting can effectively change body weight and some biochemical parameters in healthy subjects especially in males compared to pre-Ramadan period.     

Individual differences in timing of discrete and continuous movements: a dimensional approach

This study investigated aspects of individual differences in timing of continuous and discontinuous movements to different pacing signals (auditory or visual), pacing intervals (500, 650, 800, 950 ms), and across effectors (dominant versus non-dominant hand). Correlation and principal component analysis demonstrated that a single statistical dimension accounted for up to 60 % of the explained variance in discontinuous tasks and 25 % of the variance in continuous tasks, when applied to performance obtained from tasks conducted with different effectors and at different pacing rates. Correlation analysis of factor scores representing effector and rate independent task performances showed that timing of discrete or continuous movements can be associated with modality independent mechanisms. Timing variability from discrete and continuous trials was not significantly correlated. This study goes beyond previous correlational work on individual differences in discrete and continuous movements, demonstrating that individual differences in discrete (event-based) or continuous (emergent) motor timing tasks can be modeled as distinctive statistical components with dissimilar capability to capture effector, rate, and modality independent variance.     

Trajectories of Adolescent Psychopathic Traits

There is growing evidence that psychopathic traits are stable across the adolescent developmental period. Yet, no previous studies have examined the longitudinal course of these traits across adolescence. In this study, we examined joint developmental trajectories of grandiose-manipulative traits, callous-unemotional traits, and impulsive-irresponsible behavior and how these trajectories were related to changes in parental behavior and delinquency over time. Participants were 1,068 adolescents from a community sample, who were followed annually over 4 years. Overall, our results showed that a four-class latent class growth model best represented the developmental pattern of adolescent psychopathic traits. Although the majority of adolescents showed low or moderate initial levels that also decreased over time, there was a small group of adolescents who, despite significant decreases in two out of three dimensions, still maintained relatively high levels on all three dimensions. We also found that parental behavior and delinquency developed differently for the groups over time, with the high-decreasing group engaging in more delinquent behavior over time and experiencing more negative parental behavior than any other group. In sum, our findings suggest that there is a group of adolescents at particular risk for negative development.     

Short report: correlates of functional disability with disease activity in elderly patients with rheumatoid arthritis

Rheumatoid arthritis (RA) prevalence increases with age and old people are special patient population. The recognition of functional disability related to RA could be challenging in elderly patients because aging itself and potential co-morbid disease may also cause functional disability. In this study, we aimed to look at the correlation between disease activity and functional disability in elderly RA patients. Elderly RA patients, ≥65 years old at their routine visits were included in the study. The composite ‘disease activity score’ in 28 joints (DAS-28) was used to determine disease activity groups. Health assessment questionnaire (HAQ) scores were calculated to describe the functional disability and compared across the disease activity groups. Two hundred and fifty-eight RA patients with the mean age of 71 ± 5 (65–90) and a total disease duration of 8.4 ± 8.5 (.5–50) years were recruited. The proportion of patients with high and moderate disease activity was 70%. HAQ scores were significantly correlated with disease activity (p < .05). Functional disability estimated by HAQ was correlated with disease activity in elderly patients with RA     

Peer Rejection and Internalizing Behavior: The Mediating Role of Peer Victimization in Preschool

The author examined the relationship among peer rejection, peer victimization, and internalizing behaviors. The author hypothesized that physical and relational victimization would have a different indirect effect on the relationship between peer rejection and internalizing behaviors. Participants were 94 preschool children (37 girls; average age 49.97 months) from two university preschools located in the northern part of the United States. The results indicated that internalizing behaviors predicted the mediating variables only regarding relational victimization. Relational victimization indirectly affected the association between peer rejection and internalizing behaviors. The study provides evidence of the mediating effect of victimization behaviors on the relationship among peer rejection, victimization, and internalizing behaviors.