Self-interest as self-fulfilling prophecy

The adoption of experimental methods from economics, in particular script-enactment, performance-related payment, and the absence of deception, will turn experimental social psychology into a trivial science subject, Such procedures force participants to conform to a normative expectation that they must behave rationally and in accordance with their self-interest. The self-fulfilling prophecy inherent in these procedures makes it more difficult to conduct innovative social-psychological research