International Journal of Educational Technology in Higher Education

Table 5 Comparison of experimental conditions (control, non-gamified; and experimental; gamified) in terms of participants’ system access for each time-point (TP)

From: Gamification suffers from the novelty effect but benefits from the familiarization effect: Findings from a longitudinal study

	Yuen-Welch test				Effect size
TP	t(df)	p	p-adj	95% CI	ES	95% CI
1	22.458 (199.67)	0.000	0.000	− 32.564 − 27.307	0.794	0.721 0.882
2	22.252 (303.48)	0.000	0.000	− 30.655 − 25.673	0.822	0.737 0.899
3	15.019 (193.11)	0.000	0.000	− 27.913 − 21.433	0.708	0.582 0.806
4	10.696 (152.51)	0.000	0.000	− 26.744 − 18.404	0.561	0.440 0.678
5	18.783 (152.56)	0.000	0.000	− 47.941 − 38.816	0.783	0.680 0.863
6	18.640 (163.20)	0.000	0.000	− 49.943 − 40.375	0.780	0.670 0.860
7	16.877 (153.56)	0.000	0.000	− 50.217 − 39.692	0.749	0.629 0.832

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