Prefer repeated measurement of cognitive load over a single delayed rating to capture changes during learning or performance¶

Strategy · All strategies
Evidence · 3 claims (3 for) · 2 studies (1 causal, 1 associational), q2–q3 · 1 of 2 report an effect size · 3 claims rest on one study

Description¶

Based on findings that delayed ratings at the end of a task set are affected by the most difficult task within the set, the article recommends that "repeated measurement of cognitive load should be preferred to get an impression of changes in cognitive load during performance or learning". Repeated immediate ratings can be implemented with single-item subjective scales, which the article notes are easy to implement even in huge samples, low in time exposure, and suitable for repeated measures.

Design Implications¶

Context¶

Requirements¶

• At least one rating item (mental effort or perceived task difficulty) must be administered after each task or segment rather than only once at the end.

Constraints¶

• Subjective rating scales allow only offline (delayed) rather than online monitoring within a task.
• Alternatives such as physiological variables or secondary tasks hardly compete with self-ratings in real-life learning scenarios with many participants.

Target Learners¶

• secondary school students
• learners in classroom test settings

Target Learning Goals¶

• tracking changes in cognitive load across a sequence of tasks

Claims¶

• Delayed perceived task difficulty ratings relate more strongly to the relative difficulty of the more demanding items within a task set, consistent with delayed ratings being affected by the most demanding item [+W]
• A single delayed cognitive load rating after a problem sequence is significantly higher than the average of immediate ratings for both mental effort and perceived difficulty (Experiment 1) [+W]
• Delayed cognitive load ratings appear to be based more on the more complex problems in the series than on a recency effect [+W]

Related Strategies¶

Examples¶

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Key Sources¶

• Schuessler, K., Fischer, V., & Walpuski, M. (2025). Investigating construct validity of cognitive load measurement using single-item subjective rating scales. Instructional Science. https://doi.org/10.1007/s11251-024-09692-6