Literature to date has well supported the detrimental consequences of bullying and school exclusion in different countries, with negative outcomes in school adjustment or child psychological adjustment, among others. However, more research is needed to understand the effects on positive indicators of psychological well-being in children as subjective happiness. Cross-national studies are also recommended to examine the differential effects by country. Thus, the aim of this study was to examine bullying and school exclusion, and their effects on child subjective happiness, from a cross-national perspective. Data from the Second Wave of Children’s Worlds: International Survey of Children’s Well-being (ISCWeB) was used, from a sample of 12,623 children aged 10 years old from 15 countries. Participants completed self-report measures of bullying, school exclusion and subjective happiness. Results showed that 20.8% of children suffered harassment and 17.6% felt excluded, twice or more times, at school. Negative effects of bullying and exclusion on subjective happiness were observed in all the sample. Furthermore, differences by country were found in the frequency of bullying and exclusion, as well as in the size of their effects on happiness. These results underline the need to protect child psychological well-being by preventing bullying and school exclusion.

(1) Background: The aim of the present study is to analyze subjective happiness in relation to leisure time in 10-year-old boys and girls from Brazil, Chile and Spain and to determine which leisure time activity has a greater effect on their subjective happiness and whether there are differences according to gender. (2) Methods: Data from the third wave of the Children’s Worlds Project was used, which was collected by administering self-report measures to representative samples in each country. The sample was composed of 4008 early adolescents from Brazil (22.1%, n = 886), Chile (22.8%, n = 913) and Spain (55.1%, n = 2209). The mean age of the sample was 10.17 years (SD = 0.57), and 51.7% were girls. (3) Results: In terms of subjective happiness, moderate to high means were observed, with higher scores in boys and the Spanish sample. The results showed some differences in leisure time activities among children from Brazil, Chile and Spain. Furthermore, the results highlighted the importance of relaxation time with the family to promote happiness in pre-adolescence across genders and countries. Additionally, playing outdoors and doing homework were also found to be protective factors for subjective happiness. (4) Conclusions: In Brazil, Chile and Spain the most consistent result was the positive effect of spending time relaxing with the family on subjective happiness.

Critical thinking is a competence that is recommended to be learned with increasing emphasis from different national and international organizations in the fields of education and employability. The aim of this study was to analyze and describe the beliefs that Argentine and Spanish teachers who have received training in socioeducational intervention have about critical competence. A mixed-methods research study was developed by administering questionnaires and conducting focus group sessions in a sample of 153 trainee secondary school teachers holding different degrees. The results indicated that the sample subjects unanimously considered critical thinking to be essential for their professional development, but few teachers considered these skills to have been sufficiently developed. There were no significant differences between nationalities or between genders except for some variables linked to the role of universities. As a practical implication of these results, the importance of developing specific teaching–learning programs about critical competence in universities must be emphasized, especially in the degree programs whose ultimate aim is to educate individuals and groups.