The relation between risk factors for binge eating and bulimia nervosa: a population-based female twin study.

This study investigated the differential risk factors for the initiation of binge eating and the transition from binge eating to bulimia nervosa. Women from a population-based twin registry (850 complete pairs) were assessed with respect to specific measured variables (including demographics, religiosity, lifetime psychopathology, current symptomatology, and personality) and latent genetic and environmental variables. Because of the relative rarity of bulimia nervosa, statistical power was low, but findings suggested considerable overlap between the genetic risk factors for the development of binge eating and the genetic risk factors for the transition from binge eating to bulimia nervosa. Genetic risk factors for binge eating and bulimia nervosa may be largely similar, whereas nonshared environment may be important in influencing the risk for bulimia nervosa once binge eating is initiated.     

Imagined contact as a prejudice‐reduction intervention in schools: the underlying role of similarity and attitudes

The present research tested a prejudice‐reduction intervention based on imagined contact. White children imagined interacting with a child from an ethnic out‐group (Asian) once a week for 3 weeks, or did not take part in this activity (control group). Compared with the control group, children who engaged in imagined contact subsequently showed more positive attitudes, greater perceived similarity, and willingness for intergroup contact. The effect of the intervention on willingness for contact was mediated by positive attitude change. Implications for imagined‐contact theory and the development of prejudice‐reduction techniques for schools are discussed.     

The role of feedback and dot presentation format in younger and older adults’ number estimation

Numerosity estimation, the rapid assessment of the number of items in a visual scene, is historically inaccurate. We assessed whether providing feedback regarding the correct numerosity on either 0%, 50%, or 100% of the trials would affect younger and older adults’ estimation accuracy for randomized, clustered (i.e., groups of 3 or 7 dots), and stacked (i.e., column) dot formats. Participants provided estimates and confidence ratings in six blocks, each containing 48 trials (16 numerosities shown in each format). Feedback frequency was manipulated between participants during blocks 1–4; no feedback was provided during blocks 5 and 6, which contained old and new numerosities and previously estimated presentations rotated 90°. Estimation accuracy was age equivalent across blocks despite younger adults initially being more accurate than older adults. Feedback improved both age groups’ accuracy. Stacked presentations were most accurately estimated but were more likely to be over-estimated than clustered and randomized presentations. Older adults gave lower confidence ratings than younger adults despite both age groups showing increased confidence across blocks, for more structured presentation formats, and as feedback frequency increased. These results expand our understanding of the role of presentation format and feedback in producing age equivalence or age-related differences in numerosity estimation.     

EFFECTS OF VERBAL REPRIMANDS ON TARGETED AND UNTARGETED STEREOTYPY

Results of brief functional analyses indicated that motor and vocal stereotypy persisted in the absence of social consequences for five participants diagnosed with autism spectrum disorder (ASD). Subsequently, effects of a stimulus control procedure involving contingent reprimands for each participant's higher probability (targeted) stereotypy were evaluated. Results indicated that contingent verbal reprimands (i) decreased the targeted stereotypy for all five participants, (ii) decreased the untargeted stereotypy for two of five participants, and (iii) increased the untargeted stereotypy for one of five participants. Although response suppression was not achieved for any participant, three participants maintained low levels of the target stereotypy with one or two reprimands during 5‐min sessions. Furthermore, two of those participants maintained near‐zero levels of motor and vocal stereotypy during 10‐min sessions. These findings suggest that signaled verbal reprimands may be a practical intervention for reducing stereotypy in some children with ASD. Some limitations of the findings and areas of future research are briefly discussed. Copyright © 2014 John Wiley & Sons, Ltd.     

Retrieval practice over the long term: Should spacing be expanding or equal-interval?

If multiple opportunities are available to review to-be-learned material, should a review occur soon after initial study and recur at progressively expanding intervals, or should the reviews occur at equal intervals? Landauer and Bjork (1978) argued for the superiority of expanding intervals, whereas more recent research has often failed to find any advantage. However, these prior studies have generally compared expanding versus equal-interval training within a single session, and have assessed effects only upon a single final test. We argue that a more generally important goal would be to maintain high average performance over a considerable period of training. For the learning of foreign vocabulary spread over four weeks, we found that expanding retrieval practice (i.e., sessions separated by increasing numbers of days) produced recall equivalent to that from equal-interval practice on a final test given eight weeks after training. However, the expanding schedule yielded much higher average recallability over the whole training period.     

When do women respond against discrimination? Exploring factors of subtlety,form, and focus

We examined the personal‐group discrimination discrepancy (PGDD), the tendency for women to recognize that others encounter sexism while simultaneously minimizing their own personal experiences with sexism, and the degree to which it (a) applies to all manifestations of discrimination, and (b) extends beyond perceptions of discrimination to taking action against it. Our findings replicated the PGDD when it comes to perceptions of discrimination, but this effect was reversed for behavioral action such that women were more likely to take action against discrimination when it was directed at them personally. We also disentangled the factors of subtlety (subtle vs. overt) and form (formal vs. interpersonal) by showing that women can reliably distinguish between these factors when determining their reactions to discrimination.     

Neighborhood Collective Efficacy Moderates the Association between Maternal Adverse Childhood Experiences and Marital Conflict

In a socio‐demographically diverse sample of 501 caregivers participating in a longitudinal birth cohort study during the childbearing years, we examined whether neighborhood collective efficacy moderated the association between maternal adverse childhood experience (ACEs) and marital conflict. Maternal ACEs were assessed via retrospective reports. Neighborhood collective efficacy was measured via maternal and paternal reports at 2 months, and maternal reports of marital conflict were collected at infant age 2 and 18 months. Multiple linear regression analyses revealed that maternal ACEs were associated with increased marital conflict. Neighborhood collective efficacy moderated the association between early maternal ACEs and marital conflict, such that mothers experiencing ACEs had lower levels of marital conflict when exposed to high levels of neighborhood collective efficacy. Results suggest that extra‐familial sources of social support and control, such as feelings of security, trust, order, and connectedness with others, may buffer the effects of early adversity on marital discord.     

The Impact of the Safe Conversations Workshop With Diverse,Low-Income Couples

The purpose of this study was to investigate the effectiveness of the Safe Conversations workshop with low income, racial and ethnic minority couples. A sample of 156 individuals (N = 156) participated in a relationship workshop developed by Harville Hendrix and Helen LaKelly Hunt which utilized the theory and practice of Imago Relationship Therapy (IRT). Participants were administered the Dyadic Adjustment Scale before and after the workshop. Findings indicated statistical significance in their overall DAS score and a large effect size in one of four relationship subscales: Consensus. Both males and females were found to derive benefits from the workshop at equal rates.