Table 5.

The objective metrics extracted by the gaming platform.

Measurement type	Measured metrics	Description
Automated	Name of stimulus	Type of the stimulus embedded within the game and the name of the object the player has to click or drag or draw
	Time of the stimulus	Defined by the difference ΔTs = Tss–Tes between a start time Tss variable (the time instant the stimulus starts to be shown or played on the child’s device) and an end time Tes variable (the time instant the stimulus is finished)
	Time of response	Defined by the difference ΔTr = Tsr–Ter between a start time Tsr variable (the time instant the child starts to respond) and an end time Ter variable (the time instant the child complete his/her response)
	Type of response	Defined by the correctness of the child’s response depending on whether the child performs action as intended by the therapist/parent (only Correct or Incorrect)
	Score of response	Assigned score to the response of the child, either 1 or 0 signifying whether the intended response has been achieved or not respectively – a more complicated scoring system could be programed
	Image of the stimulus and the response	A screenshot of the child’s device obtained during imitation drawing and the action games – assisting the therapist to analyze the response further offline to ascertain the quality of response.
	Sound recording	The audio response of the player recorded during the sound and speech imitation games – allowing the therapist to check the quality of response
Manual	Therapist/parent evaluation	Defined as Complete/Partially complete/Incomplete response of the child according to the therapist/parent judgment
	Manual score	Assigned to 0/1/2 corresponding to the therapist/parent evaluation of the child’s action – a more complicated scoring system could be programed