Transitions in sleep problems from late adolescence to young adulthood: A longitudinal analysis of the effects of peer victimization

Adolescence is a developmental period with high vulnerability to sleep problems. However, research identifying distinct patterns and underlying determinants of sleep problems is scarce. This study investigated discrete subgroups of, changes in, and stability of sleep problems. We also examined whether peer victimization influenced sleep problem subgroups and transitions in patterns of sleep problems from late adolescence to young adulthood. Sex differences in the effects of peer victimization were also explored. In total, 1,455 male and 1,399 female adolescents from northern Taiwan participated in this longitudinal study. Latent transition analysis was used to examine changes in patterns of sleep problems and the effects of peer victimization on these changes. We identified three subgroups of sleep problems in males and two in females, and found that there was a certain level of instability in patterns of sleep problems during the study period. For both sexes, those with greater increases in peer victimization over time were more likely to change from being a good sleeper to a poor sleeper. The effects of peer victimization on baseline status of sleep problems, however, was only significant for males, with those exposed to higher levels of peer victimization more likely to be poor sleepers at baseline. Our findings reveal an important role of peer victimization in predicting transitions in patterns of sleep problems. Intervention programs aimed at decreasing peer victimization may help reduce the development and escalation of sleep problems among adolescents, especially in males.

     

The role of intonation for interrogative suggestibility

The detrimental consequences of suggestive witness manipulation have been frequently discussed in the literature. Notably, these discussions have been limited to the consequences of suggestive question types and interrogator conduct. This study is the first to investigate the influence of interrogator's intonation on interrogative suggestibility. Specifically, utilizing a modified German version of the forensic Gudjonsson suggestibility scale as dependent variable, we experimentally manipulated phrase‐final contours (low vs. high) and accentuation of details (neutral vs. emphatic) in the questions of the interrogator in a student sample (N = 88). Phrase‐final falling intonation contours increased suggestibility both through suggestive questions and through negative feedback. In contrast, accentuation of selected details increased only the latter. The combination of both tonal patterns only partially influenced suggestive response behavior after the exposure to interrogative pressure. However, particularly the combination of phrase‐final rising and neutral intonation consistently led to lowest interrogative suggestibility. Results are discussed in terms of their theoretical and applied implications for forensic contexts.     

Increased conspiracy beliefs among ethnic and Muslim minorities

In the present study, we tested whether Muslim minority members are more susceptible to conspiracy theories than majority members in the Netherlands. We examined conspiracy theories that are relevant (portraying the Muslim community as victim or Jewish people as perpetrators) and irrelevant for participants' Muslim identity (about the 2007 financial crisis, and other theories such as that the moon landings were fake). Results revealed that Muslims believed both identity‐relevant and irrelevant conspiracy theories more strongly than non‐Muslims. These differences could not be attributed to the contents of Muslim faith: Ethnic minority status exerted similar effects independent of Muslim identity. Instead, evidence suggested that feelings of both personal and group‐based deprivation independently contribute to belief in conspiracy theories. We conclude that feelings of deprivation lead marginalized minority members to perceive the social and political system as rigged, stimulating belief in both identity‐relevant and irrelevant conspiracy theories.     

What makes displaced revenge taste sweet: Retributing displaced responsibility or sending a message to the original perpetrator?

The present research investigates the psychological dynamics underlying displaced revenge. We examine (1) the effect of entitativity on displaced revenge tendencies, including potential mediators of this effect, and (2) the conditions under which taking displaced revenge is satisfying for avengers. In three studies, we show that (a) perpetrator group entitativity predicts the tendency to take displaced revenge via perceptions that the vengeful action is effective in delivering a message to the original perpetrator, (b) that displaced revenge is satisfying when the group continues to exist in its original form, but not when the perpetrator has left the group or when the group has dissolved, and (c) that displaced revenge is most satisfying when both the original perpetrator and the target of revenge understand why revenge has been taken. These findings imply that sending a message to the original perpetrator is an important aspect of the psychological dynamics underlying displaced revenge.     

Stability and Change in Domain‐specific Self‐esteem and Global Self‐esteem

A notable uptick of interest in the stability of self‐esteem has been observed over the past few years. Most researchers, however, have focused on unidimensional rather than multidimensional conceptualizations of self‐esteem. The paucity of empirical research is surprising given conflicting theoretical perspectives on the stability of self‐esteem. The goal of the present study was to thoroughly disentangle different conceptualizations of self‐esteem and test opposing classical theories on (i) the stability and (ii) the direction of mutual influence of these different forms of self‐esteem. We analysed two‐year longitudinal data from participants (N = 644 at T1, N = 241 at T2) with an average age of 47.0 years (SD = 12.4). Analyses using a latent variable approach revealed that the domains of self‐esteem were relatively stable in terms of rank order and mean levels. In fact, the size of the stability coefficients was comparable to that of other trait measures that have been reported in the literature and paralleled the stability observed for global self‐esteem. Results did not provide support for either top‐down or bottom‐up effects between domain‐specific and global self‐esteem. These findings have important theoretical and practical implications regarding the stability and development of self‐esteem in adulthood and advance the understanding of self‐esteem in personality theory. © 2018 European Association of Personality Psychology