Robustness of the cognitive gains in 7-month-old bilingual infants: A close multi-center replication of Kovács and Mehler (2009)

We present an exact replication of Experiment 2 from Kovács and Mehler's 2009 study, which showed that 7-month-old infants who are raised bilingually exhibit a cognitive advantage. In the experiment, a sound cue, following an AAB or ABB pattern, predicted the appearance of a visual stimulus on the screen. The stimulus appeared on one side of the screen for nine trials and then switched to the other side. In the original experiment, both mono- and bilingual infants anticipated where the visual stimulus would appear during pre-switch trials. However, during post-switch trials, only bilingual children anticipated that the stimulus would appear on the other side of the screen. The authors took this as evidence of a cognitive advantage. Using the exact same materials in combination with novel analysis techniques (Bayesian analyses, mixed effects modeling and cluster based permutation analyses), we assessed the robustness of these findings in four babylabs (N = 98). Our results did not replicate the original findings: although anticipatory looks increased slightly during post-switch trials for both groups, bilingual infants were not better switchers than monolingual infants. After the original experiment, we presented additional trials to examine whether infants associated sound patterns with cued locations, for which we did not find any evidence either. The results highlight the importance of multicenter replications and more fine-grained statistical analyses to better understand child development.

Highlights

• We carried out an exact replication across four baby labs of the high-impact study by Kovács and Mehler (2009).
• We did not replicate the findings of the original study, calling into question the robustness of the claim that bilingual infants have enhanced cognitive abilities.
• After the original experiment, we presented additional trials to examine whether infants correctly associated sound patterns with cued locations, for which we did not find any evidence.
• The use of novel analysis techniques (Bayesian analyses, mixed effects modeling and cluster based permutation analyses) allowed us to draw better-informed conclusions.

     

The effects of news report valence and linguistic labels on prejudice against social minorities

ABSTRACT

Combating prejudice against social minorities is a challenging task in current multicultural societies. Mass media can decisively shape prejudice, because it often represents the main source of information about social minorities. In 3 studies in the Czech Republic (N = 445) and Switzerland (N = 362; N = 220), we investigated how prejudice against negatively and positively perceived minorities (the Roma in Study 1, Kosovo Albanians in Study 2, Italians in Study 3) is influenced by a single exposure to a print news report, by manipulating the valence of reports about minority members (positive vs. negative vs. mixed) and linguistic forms for minorities’ ethnicity (nouns vs. adjectives). Positive and negative reports shaped prejudice in the respective directions; the effect of mixed reports mostly did not differ from positive reports. Labeling ethnicity with nouns (e.g., a male Roma) resulted in more prejudice than adjectives (e.g., a Roma man), independent of report valence. Report valence influenced the affective part of prejudice (i.e., feelings toward a minority), whereas language consistently shaped the behavioral part of prejudice (i.e., preferred social distance from a minority).     

Cyberbullying status and mental health in Norwegian adolescents

The aim of the present study was to examine how the cyberbullying status (not involved, cyber-victim only, cyberbully only, cyber-victim and bully) is related to the mental health of the adolescents when controlled for traditional bullying experience. We also examined the potential moderator sex on the relationship between cyberbullying status and mental health. Univariate analyses of variance were conducted to predict mental health problems using the Strength and Difficulties Questionnaire total difficulties score and its five scales. The model consisted of five predictors in addition to an interaction term between cyberbully status and sex. Of the 2,117 adolescents, 50% were girls. The vast majority did not have any cyberbullying experience (87%), 9% of the adolescents were cyber-victims only, 1% were cyberbullies only and 3% were both cyber-victims and bullies. Overall, girl's mental health seems to be more compromised when exposed to or involved in cyberbullying than boys mental health. In general, adolescents who are not only cyberbullies and cyber-victims, but also cyber-victims only had a worse mental health compared to adolescents without cyberbullying experience. Being exposed to cyberbullying is a unique contributor to mental health problems. Preventing cyberbullying is therefore important. Especially girl's mental health seems to be negatively affected when exposed to cyberbullying.