Parents play a very important role in all aspects of children's experiences, and parental involvement in children's school lives is associated with numerous educational outcomes. Therefore, the present study investigated the role of several parents' demographic characteristics, parental self-efficacy, as well as beliefs regarding the value of education and the nature of children's abilities, in modelling and reinforcement behaviours through which parents attempt to become involved in children's school lives. The obtained results indicated that parental self-efficacy and beliefs regarding the nature of children's abilities predicted modelling and reinforcement behaviours. Furthermore, parents' attitudes towards education were identified as a significant predictor of modelling behaviours, whereas their gender predicted reinforcement behaviours. These findings confirm and extend previous knowledge regarding the role of parents' beliefs in some aspects of their involvement in children's school life that represents a relevant contributor to students' academic achievements.