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Adolescent Cyberbullying and Cyber Victimization: Longitudinal Study Before and During COVID-19

Adolescent Cyberbullying and Cyber Victimization: Longitudinal Study Before and During COVID-19

For more details regarding the multi-item measurement scale, refer to Bullo and Schulz [34]. Measurement invariance of cyber peer aggression was tested in a structural equation modeling framework using confirmatory factor analysis, which demonstrated that all 4 levels of measurement invariance (from configural factorial over weak and strong factorial to strict factorial invariance [52]) can be assumed for the data. Additional details are provided in Bullo and Schulz [34].

Peter Johannes Schulz, Marc-Olivier Boldi, Ann van Ackere

J Med Internet Res 2025;27:e70508

Predicting and Empowering Health for Generation Z by Comparing Health Information Seeking and Digital Health Literacy: Cross-Sectional Questionnaire Study

Predicting and Empowering Health for Generation Z by Comparing Health Information Seeking and Digital Health Literacy: Cross-Sectional Questionnaire Study

Schulz and Nakamoto [36] proposed the need to distinguish between health literacy and patient empowerment by arguing that digital health literacy can facilitate patient empowerment by providing patients with the tools and information they need to play an active role in their health management. Paige et al [37] examined the differences in digital health literacy between rural and urban adults in the United States.

Wen Jiao, Angela Chang, Mary Ho, Qianfeng Lu, Matthew Tingchi Liu, Peter Johannes Schulz

J Med Internet Res 2023;25:e47595

Critical Test of the Beneficial Consequences of Lifting the Ban on Direct-to-Consumer Advertising for Prescription Drugs in Italy: Experimental Exposure and Questionnaire Study

Critical Test of the Beneficial Consequences of Lifting the Ban on Direct-to-Consumer Advertising for Prescription Drugs in Italy: Experimental Exposure and Questionnaire Study

Schulz and Nakamoto [33] identify health literacy as a set of basic literacy, procedural knowledge, declarative knowledge, and judgment skills [33]. Our research interest is to find out whether a lift of the ban on DTCA for prescription drugs increases health literacy (to which knowledge belongs). A systematic review provided substantial evidence for DTCA prompting information-seeking in patients [34].

Peter Johannes Schulz, Francesca Crosignani, Serena Petrocchi

J Med Internet Res 2023;25:e40616

The Empowering Role of Web-Based Help Seeking on Depressive Symptoms: Systematic Review and Meta-analysis

The Empowering Role of Web-Based Help Seeking on Depressive Symptoms: Systematic Review and Meta-analysis

Schulz and Nakamoto [43] applied the following four constructs (originally from Spreitzer [44]) to the context of health: (1) “Meaningfulness” refers to the experience that what a person is doing is meaningful for their health; (2) “Self-efficacy” is the belief in one’s capabilities to produce the desired results by one’s actions; (3) “Self-determination” refers to a decision that is characterized by an autonomous initiation; and (4) “Impact” is the difference that the accomplishment of a task is perceived to

Nicole Bizzotto, Laura Marciano, Gert-Jan de Bruijn, Peter Johannes Schulz

J Med Internet Res 2023;25:e36964