Online surveys are increasingly used to investigate health conditions, especially among young people. However, this methodology presents some limitations including item nonresponse concerning sensitive and knowledge-related questions. This study aimed to suggest latent class analysis as the methodology to statistically deal with item nonresponse…

Introduction: The aim of this study was to evaluate the school-based "My Body and I" program which was designed to help girls and boys to cope better with inevitable pubertal body changes. Method: Using a pre-post treatment-control design with 25 treatment and 17 control classes from schools in Germany and France (484 boys, 485 girls;…

Teachers' pro-environmental behaviour, conceptions and attitudes towards nature and the environment were investigated using 47 questions from the BIOHEAD-Citizen questionnaire. The sample included 1,109 pre- and in-service teachers from Sweden and France. Analyses showed only few significant differences between female and male teachers. Forty-one…

Innatism is the belief that most of the human personality can be determined by genes. This ideology is dangerous, especially when it claims to be scientific. The present study investigates conceptions of 1060 students from Estonia and France related to genetic determinism of some human behaviours. Factors taken into account included students'…

This study measured the effects of gender, age and their interaction on global self-esteem and physical self-perceptions (physical self-worth, PSW; physical condition, PC; physical strength, PS; attractive body, AB; sport competence, SC) of French adolescents. Global self-esteem (GSE) and physical self-perceptions were measured by the Physical…