A Framework of the Training Module for Untrained Observers in Usability Evaluation Motivated by COVID-19: Enhancing the Validity of Usability Evaluation for Children’s Educational Games

Table 3

Ranks.

	Group	N	Mean rank	Sum of ranks
Learnability	Trained observers	20	14.48	289.50
	Untrained observers	20	26.53	530.50
	Total	40
Memorability	Trained observers	20	16.10	322.00
	Untrained observers	20	24.90	498.00
	Total	40
Enjoyability	Trained observers	20	14.30	286.00
	Untrained observers	20	26.70	534.00
	Total	40
Difficulty of use	Trained observers	20	16.58	331.50
	Untrained observers	20	24.43	488.50
	Total	40