[Causal relationship between assertiveness and adjustment in children: A short-term longitudinal study].

This study examined the causal relationships between assertiveness and both internal and external adjustment in children. Elementary school children in grades four through six (N = 284) participated in the study, which used a short-term longitudinal design. The children completed questionnaires twice during a 6-months period.

[Development of a revised version of listening skills scales for high school students].

There are many studies about social skills and social skills training in Japan, most of which include listening skills among the target skills. Listening skills are important for adolescents because they are necessary to start and cultivate relationships with friends. The present study developed a revised version of listening skills scales for high school students, and confirmed their reliability and validity.

[Relationship between assertiveness including consideration for others and adjustment in children].

The relationship between assertiveness and internal and external adjustment was investigated. Elementary school children in grades four to six (n=207) and their classroom teachers (n=8) participated in the study. Internal and external adjustments were measured by using self-ratings, and self- and other- ratings respectively.

Forms of aggression, social-psychological adjustment, and peer victimization in a Japanese sample: the moderating role of positive and negative friendship quality.

The purpose of these studies was to examine the frequency and stability of relational and physical aggression and their associations with social-psychological adjustment or peer victimization, and how friendships are involved in the relations between forms of aggression and peer victimization in Japanese children. The sample consisted of 452 (Study 1) and 138 (Study 2) children who were in the fourth and fifth grades. Results of Study 1 demonstrated that relational aggression was uniquely and more strongly associated with internalizing adjustment problems than physical aggression.