Table 1.

Email response, wallet recovery, and complete wallet contents recovery outcomes by money conditions (N = 496)^*

	No Money		Money		Total Sample
	%	SD	%	SD	%	SD	P-value
Email response	22.2, 7.0†	0.416, 0.256†	32.7, 21.5†	0.470, 0.412†	27.4, 14.3†	0.447, 0.350†	0.009, 0.000†
Wallet recovery	77.0	0.422	78.6	0.411	77.8	0.416	0.666
Complete wallet contents recovery	75.0	0.434	65.7	0.476	70.4	0.457	0.024

^*Four sites’ wallet recovery results were not obtained due to various reasons (e.g., office closure).

^†Response rates from the China study in ref. 7.

Notes: The last column presents P values for the null hypothesis of perfect randomization ( ${\chi }^2$ tests).