Problematic smartphone use and the quantity and quality of peer engagement among adolescents: A longitudinal study

Problematic smartphone use (PSU) has recently attracted a lot of attention, especially among adolescents. The knowledge about the role peer engagement might play in the development of PSU is still limited. We aimed to investigate the bidirectional relationships between PSU, the quantity of online (i.e., passive and active social media messaging on smartphone) and offline peer engagement (i.e., intensity of face-to-face meeting with friends) and the quality of peer engagement (i.e., perceived competence in close friendships) among adolescents. Data from a three-wave longitudinal study among 2100 Dutch high school students (56.7% boys) was used. Cross-lagged models indicated that: (1) perceived competence in close friendships at T1 negatively predicted PSU at T2 and PSU at T2 negatively predicted perceived competence in close friendships at T3; (2) there were positive and reciprocal cross-lagged correlations between PSU and passive social media messaging on smartphone; (3) there were positive and reciprocal cross-lagged correlations between intensity of face-to-face meeting with friends and active social media messaging on smartphone. This implies that adolescents who perceive a low competence in close friendships and/or intensively check their smartphone for messages from their peers may be particularly vulnerable to developing problematic smartphone use over time

Design of a problembased curriculum: a general approach and a case study in the domain of public health.

A general approach to curriculum design in the context of Problem-Based Learning (PBL) is outlined. Ten general 'steps' for problem-based curriculum development are proposed, using the case study methodology to describe the underlying iterative process. Examples are given from the case of the development of a public health professions education curriculum. The process starts with defining the purpose of the curriculum. General objectives are generated in a top-down fashion. The prior knowledge, skills and misconceptions of future students are considered. A preliminary schedule of the curriculum is developed, including sketches of unit blueprints. These are further elaborated. Unit subgoals are related to planned educational activities. Only then, are the learning materials created, with problem writing as the most important aspect. In developing a problem-based curriculum, assessment deserves special attention, because of its influence on the learning process. Finally, educational organization, curriculum management and evaluation procedures are considered

Een dubbele kijk op minder drinken. De invloed van expliciete en impliciete alcoholgerelateerde processen en vroege interventie bij jongeren

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