Assessing the Effects of Gamification on Developing EFL Learners’ Idiomatic Knowledge: Do Attitudinal Factors Contribute to the Learning of the Idioms with the Game?

Table 6

One-sample test of the questionnaire.

	Df	Sig. (2-tailed)	Mean difference	95% confidence interval of the difference
				Lower	Upper
	41.78	14	.00	4.11	3.90	4.32