Leverage-salience theory suggests that a single survey design attribute will have different leverages on the cooperation decision for different persons. Further, the activation of the potential leverage depends on whether the attribute is made salient to the sample person during the survey request. This varies over introductory situations within a given survey. Following this logic, this article presented one example of such a combined effect - the positive effect of an incentive is diminished when community involvement is a likely motivator for cooperation. This effect was detectable even with weak indicators of leverage and salience. It is suspected that leverage-salience theory offers a rich set of deductions for methodological research, some leading to reinterpretations of prior research findings.