Background: As the number of older adults increases worldwide, understanding their mental health is crucial, including the impact of traumatic experiences that can lead to posttraumatic stress disorder (PTSD). However, validated screening and diagnostic instruments for PTSD in older adults are limited. Objective: …

Many students persistently misinterpret histograms. This calls for closer inspection of students’ strategies when interpreting histograms and case-value plots (which look similar but are diferent). Using students’ gaze data, we ask: How and how well do upper secondary pre-university school students estimate …

Poster presented at the 14th Congress of the European Society for Research in Mathematics Education, Free University of Bozen-Bolsano, Italy.

Citizens regularly search the Web to make informed decisions on daily life questions, like online purchases, but how they reason with the results is unknown. This reasoning involves engaging with data in ways that require statistical literacy, which is crucial for navigating contemporary data. However, …

This thesis explores how food-related content on social media platforms like TikTok and Instagram influences the dietary behaviour of Dutch adolescents aged 15–18. Using both survey data and a focus group, the study reveals that emotionally engaging content, influencer promotions, and viral trends significantly …

Academic cheating poses a significant challenge to conducting fair online assessments. One common way is collusion, where students unethically share answers during the assessment. While several researchers proposed solutions, there is lack of clarity regarding the specific types they target among the …

This thesis explores how food-related content on social media platforms like TikTok and Instagram influences the dietary behaviour of Dutch adolescents aged 15–18. Using both survey data and a focus group, the study reveals that emotionally engaging content, influencer promotions, and viral trends significantly …

Poster presented at the 14th Congress of the European Society for Research in Mathematics Education. Bolzan-Bolzano, Italy. https://hal.science/hal-05199921v1

This study explores how a pre-service mathematics teacher interprets eye-tracking data to diagnose students’ reasoning when working with histograms. Using a qualitative case study design, the participant engaged with an eye-tracking vignette, featuring a student’s gaze plot, answer, and cued recall explanation. …

Interpreting statistical graphs is a crucial component of the 21st-century skillset known as statistical literacy. Despite their importance for statistical literacy, research reports that systematic errors often occur in the interpretation. As no consolidated overview of these errors existed to date, …