Table 1.

Descriptive Statistics, Differences between, and Intercorrelations of Self-Assessed and Measured Creativity (Study 1).

Study		Variable	Min–Max	M (SD)	d	1	2	3	4	5
1	1	Absolute Pre-SA	0.00–100.00	51.20 (20.29)	0.03
	2	Relative Pre-SA	0.00–100.00	45.16 (18.19)	− 0.16*	0.82
	3	Absolute Post-SA	0.00–100.00	46.61 (20.92)	− 0.12*	0.64	0.59
	4	Relative Post-SA	0.00–100.00	42.64 (19.36)	− 0.25*	0.62	0.73	0.85
	5	DT (raw)	0.17–2.92	1.88 (0.40)		0.20	0.15	0.31	0.26
	6	DT (%)	0.24–100.00	50.12 (28.90)		0.24	0.20	0.32	0.28	0.95
2	1	Absolute Pre-SA	5.00–100.00	54.29 (21.28)	0.12*
	2	Relative Pre-SA	0.00–100.00	46.11 (19.25)	− 0.13*	0.75
	3	Absolute Post-SA	0.00–100.00	50.91 (20.60)	0.02	0.48	0.50
	4	Relative Post-SA	0.00–100.00	45.22 (19.35)	− 0.16*	0.53	0.67	0.81
	5	DT (raw)	0.64–2.94	1.79 (0.39)		0.14	0.17	0.23	0.26
	6	DT (%)	0.32–100.00	50.16 (28.91)		0.15	0.17	0.25	0.28	0.97

Measured divergent thinking (DT) creativity is given as raw and percentile values (%); SA = Self-assessed creative performance; Absolute/Relative = Self-assessment in general/compared to others; Pre/Post = Self-assessments pre/post DT task performance. ds are Cohen’s ds for the differences between self-assessment and performance percentile (positive values = overestimation) with * indicating significance in two-tailed t-tests (p < .05). At n = 425 (study 1), all r ≥ 0.09 are significant at p < 0.05 and all r ≥ 0.16 are significant at p < 0.001. At n = 317 (study 2), all r ≥ 0.11 are significant at p < 0.05 and all r ≥ 0.18 are significant at p < 0.001.