Abstract

Informed consent, a cornerstone of research ethics, ensures participant protection and informed participation, particularly in online settings. Despite its significance, engagement with online consent forms remains low, underscoring the need for improved presentation strategies. This study investigates the impact of interactive elements and diverse presentation formats on the comprehension and engagement of online informed consent documents among a broad demographic beyond the commonly studied student populations. Employing a between-subjects experimental design, we explored six versions of online consent forms varying in interactivity, readability, and visual formatting to identify optimal strategies for enhancing participant comprehension and engagement. Our findings reveal that interactive formats significantly improve comprehension and perceived readability, highlighting the pivotal role of design in facilitating informed consent. The study also examines the influence of individual differences, such as self-efficacy and trust in science, on the effectiveness of consent forms, providing insights into the nuanced dynamics between participant characteristics and consent form engagement. These results advocate for integrating interactive elements and thoughtful design in consent forms to foster a more informed and engaged participant base. Implications for research ethics, best practices in consent form development, and future research directions are also discussed, emphasizing the need for ongoing innovation in the consent process to adapt to the evolving landscape of online research. This study contributes to the body of knowledge on research ethics by offering evidence-based recommendations for enhancing the informed consent process, ultimately promoting participant-centered research practices.