A Non-Experimental Investigation of Demand Artifacts in a Personal Selling Experiment
提出在个人销售实验室研究中应经常加入非实验环节，通过对比重复实验与平行非实验的结果，指出需增强买卖互动研究的实验真实性。
The authors propose that non-experiments be a frequent component of laboratory investigations addressing personal selling. A comparison of the results of a replication of an earlier experiment with those of a parallel non-experiment suggests the need to establish greater experimental realism in buyer-seller interaction research.