We show that a measure of reciprocity derived from the Berg et al. (1995) trust game in a laboratory setting predicts the reciprocal behavior of the same subjects in a real-world situation. By using the Crowne and Marlowe (1960) social desirability scale, we do not find any evidence that a desire to conform to social norms distorts results in the lab, yet we do find evidence that it affects results in the field.
M. Baran, N., Sapienza, P., & Zingales, L. (2010). Can We Infer Social Preferences From the Lab? Evidence from the Trust Game. National Bureau of Economic Research (NBER). https://doi.org/10.3386/w15654