Table 2.

Descriptive statistics and correlations of the variables.

Variable, mean (SD)		D_Participation	P_Gender	P_Age	P_ Deadline	D_Reponse Speed	D_Assistance Number	P_Rewards	Dtitle_dummy1	Dtitle_dummy2	D_Score	Q_Complexity
D_Participation, 2.16 (1.228)
	r	1	0.114	–0.002	0.044	–0.037	0.294	0.341	0.183	–0.110	0.258	0.067
	P value	—a	<.001	.94	.08	.15	<.001	<.001	<.001	<.001	<.001	.01
P_Gender, 0.46 (0.499)
	r	0.114	1	0.002	0.040	0.032	0.025	0.124	0.016	0	0.037	–0.021
	P value	<.001	—	.95	.12	.22	.34	<.001	.54	.99	.15	.43
P_Age, 29.89 (16.62)
	r	–0.002	0.002	1	–0.008	–0.004	–0.031	0.040	–0.035	–0.008	0.011	–0.058
	P value	.93	.95	—	.76	.89	.23	.13	.17	.75	.67	.02
P_ Deadline, 2.16 (1.228), 0.46 (0.499)
	r	0.044	0.040	–0.008	1	0.119	–0.039	–0.021	0.003	–0.151	0.120	0.144
	P value	.08	.12	.76	—	<.001	.13	.41	.91	<.001	<.001	<.001
D_Reponse Speed, 173.50 (1457.6)
	r	–0.037	0.032	0	0.119	1	–0.052	–0.006	–0.014	0.009	–0.036	0.007
	P value	.15	.22	.89	<.001	—	.04	.83	.59	.74	.16	.79
D_Assistance Number, 154.55 (122.6)
	r	0.294	0.025	–0.031	–0.039	–0.052	1	0.059	0.113	–0.129	0.295	0.008
	P value	<.001	.34	.23	.13	.04	—	.02	<.001	<.001	<.001	.76
P_Rewards, 5.37 (8.76)
	r	0.341	0.124	0.040	–0.021	–0.006	0.059	1	0.020	0.032	0.025	0.168
	P value	<.001	<.001	.13	.41	.83	.02	—	.44	.21	.34	<.001
Dtitle_dummy1, 0.26 (0.440)
	r	0.183	0.016	–0.035	0.003	–0.014	0.113	0.020	1	–0.544	0.278	0.056
	P value	<.001	.54	.17	.91	.59	<.001	.44	—	<.001	<.001	.03
Dtitle_dummy2, 0.45 (0.498)
	r	–0.110	0	–0.008	–0.151	0.009	–0.129	0.032	–0.544	1	–0.370	–0.018
	P value	<.001	.99	.75	<.001	.74	<.001	.21	<.001	—	<.001	.496
D_Score, 4.67 (0.201)
	r	0.258	0.037	0.011	0.120	–0.036	0.295	0.025	0.278	–0.370	1	0.017
	P value	<.001	.15	.67	<.001	.16	<.001	.34	<.001	<.001	—	.52
Q_Complexity, 88.71 (64.48)
	r	0.067	–0.021	–0.058	0.144	0.007	0.008	0.168	0.056	–0.018	0.017	1
	P value	.01	.43	.02	<.001	.79	.76	<.001	.03	.496	.52	—

^aNot applicable.