Fig 1.
Screenshot from game used in the study (Icy Tower 1.5.1.1).
Note: The avatar of the player has just reached the 100th platform (the goal in the study).
Fig 2.
The results of the manipulation check.
Subjective difficulty depending on the difficulty level.
Fig 3.
Subjective assessment in the game depending on the level of difficulty–results for Rating Scale Mental Effort.
Fig 4.
Subjective assessment in the game depending on the level of difficulty–results for the Overall Workload scale.
Table 1.
Self-report measures by trial.
Fig 5.
Behavioral index of involvement in the game depending on the level of difficulty–the intensity of space hits (jumps) per second of gameplay.