Table 1

The accuracy of model fit; standardised β coefficients; and frequency of each predictor in 10 rounds of 10-fold (ie, 100) regression runs

	Training	Crossvalidation	SE
Fit
R²	0.0592	0.0579	0.0003
AUC	0.6441	0.6423	0.0006
Accuracy	0.6694	0.6678	0.0013

Standardised coefficients
		1.2415	0.3264	0.0742
Predictors	Standardised coefficient	CC1	CC2	CC3
Frustration	−0.8756	−0.8663	0.7827	−0.7496
Engagement	−0.9007	−0.6649	−0.3232	0.4077
LT excitement	−0.1829	−0.0411	−0.3663	−0.1659
Meditation	0.3812	0.2380	0.2093	0.2351

Predictor table
Predictor	All	1	2	3	4	5	6	7	8	9	10
Frustration	100	10	10	10	10	10	10	10	10	10	10
Engagement	100	10	10	10	10	10	10	10	10	10	10
LT excitement	100	10	10	10	10	10	10	10	10	10	10
Meditation	100	10	10	10	10	10	10	10	10	10	10
Total	400	40	40	40	40	40	40	40	40	40	40
Predictors		4	4	4	4	4	4	4	4	4	4

All predictors were present in all runs.
AUC, area under the curve and LT excitement, long-term excitement.