Cognitive load during the IVR-based PVAS task was generally low despite unsatisfactory perception and interpretation performance¶

Claim · All claims
Evidence · 1 study · design r3 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? The mental effort rating scale showed generally low cognitive load across the seven events (median 2–3 per event), yet participants did not achieve satisfactory perception and interpretation performance. → Liu 2025

Evidence¶

Liu 2025¶

Liu, T.-C., & Lin, Y.-C. (2025). Development and implementation of an IVR-based assessment system for student teachers' professional vision. Education Tech Research Dev. https://doi.org/10.1007/s11423-025-10463-4

q2 · i? · design · r3

Mental effort ratings (Paas-based 7-point scale) collected after each event in the 24-participant case study; Table 1 shows medians of 2 or 3. The article reports cognitive load was 'generally low' while participants 'did not achieve satisfactory performance in terms of perception and interpretation.'

"The measurement revealed that the cognitive load of perceiving and interpreting the seven classroom events was generally low."

Discussion¶

Related Claims¶

• Perception was hardest in Event 3, which involved the least noticeable distracted behaviour (looking out a window) — related
• Student teachers made the likely interpretation in only about half of post-perception interpretations in the IVR-based PVAS case study — related
• In the IVR-based PVAS case study, most student teachers identified misbehaving students in all events, but a quarter made 10 or more perception errors — related
• Perception performance was superior for independent-study events (6–7) than for lecture events (1–5) — related
• AI assistance reduces subjective mental effort across all tasks even when it does not reduce completion time, dissociating time and effort — related
• Self-reported mental effort increased less across tasks in the ChatGPT condition while perceived difficulty rose equally in both groups — related