The Narrative Manager generated an additional full spill task for users advancing quickly, widening their distance to the goal by 23 points, while slow users received only small difficulties¶

Claim · All claims
Evidence · 1 study · causal r? · q2
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In the evaluation, fast-progressing users in the Narrative Condition received one additional spill to clean, increasing their remaining work by 23 heuristic steps, whereas slow users did not receive a second spill. → Alvarez 2014

Evidence¶

Alvarez 2014¶

Alvarez, N., Sanchez-Ruiz, A., Cavazza, M., Shigematsu, M., & Prendinger, H. (2014). Narrative Balance Management in an Intelligent Biosafety Training Application for Improving User Performance. Int J Artif Intell Educ 25, 35–59. https://doi.org/10.1007/s40593-014-0022-z

q2 · i? · causal · r?

Burn-down chart analysis of system logs from the 30-subject evaluation, plotting distance to goal on a heuristic range starting at 23. The extra spill event "widening the distance to the goal by 23 points" was limited to one per session.

"This event is represented by a big peak in the graph, widening the distance to the goal by 23 points (we limited this event to a maximum of one per session, due to it taking a long time to be dealt with)."

Discussion¶

Related Claims¶

• Task progression graphs show difficult Narrative Manager events raise the distance-to-goal curve while assistive events such as hiding materials produce flat zones that cost user time — related