The Implicit Association Test (IAT, Greenwald, McGhee, & Schwartz, 1998) provides indirect measurements, which are supposed to prevent voluntary control of answers by subjects. However, a systematic review of the empirical tests offers divergent results. This paper studies if it is possible to deliberately deceive a self-esteem IAT depending on whether subjects are given information on the strategy to be used or not and according to their acquaintance with the test. Results show that almost all subjects are able to control their answers to the IAT if they are provided an efficient strategy; only a part of naïve subjects succeed in it. These results are discussed in reference to the use of the IAT in basic and applied research. (PsycINFO Database Record (c) 2016 APA, all rights reserved)