To be successful in a high-stakes testing situation is desirable for any test taker. It has been found that, beside content knowledge, test-taking behavior, such as risktaking strategies, motivation, and test anxiety, is important for test performance. The purposes of the present study were to identify and group test takers with similar patterns of test-taking behavior and to explore how these groups differ in terms of background characteristics and test performance in a high-stakes achievement test context. A sample of the Swedish Scholastic Assessment Test test takers (N = 1891) completed a questionnaire measuring their motivation, test anxiety, and risk-taking behavior during the test, as well as background characteristics. A two-step cluster analysis revealed three clusters of test takers with significantly different test-taking behavior profiles: a moderate (n = 741), a calm risk taker (n = 637), and a test anxious risk averse (n = 513) profile. Group difference analyses showed that the calm risk taker profile (i.e., a high degree of risktaking together with relatively low levels of test anxiety and motivation during the test) was the most successful profile from a test performance perspective, while the test anxious risk averse profile (i.e., a low degree of risk-taking together with high levels of test anxiety and motivation) was the least successful. Informing prospective test takers about these insights can potentially lead to more valid interpretations and inferences based on the test scores. Eur J Psychol Educ (2018) shown that for a test taker to be successful when taking a test, it is important to be able to reduce anxiety and sustain motivation (Dodeen et al. 2014;Naylor 1997;Sternberg 1998), as well as using effective test-taking strategies, such as willingness to take risks (Bicak 2013;Bond and Harman 1994;Dodeen 2008). Studies in this area often compare groups of test takers and have for example found that high achievers tend to report using more effective testtaking strategies when compared to low achievers (Stenlund et al. 2017;Ellis and Ryan 2003;Hong et al. 2006;Kim and Goetz 1993), that males are more prone to taking risks when answering test items (see, e.g., Baldiga 2014), and that females and low achievers seem to experience higher levels of test anxiety than males and high achievers (Stenlund et al. 2017;Cassady and Johnson 2002;Naylor 1997). Findings like these can help understand and to some extent possibly explain performance differences that are often observed between manifest groups in achievement tests. Still, considering the consequences of successful test-taking behavior in high-stakes test situations, and assuming that test takers adopt different test-taking behavior, exploring differences across groups, in terms of profiles, and identifying patterns that seem associated with sucessful and less successful test-taking, respectively, might add important knowledge to this area. With this study, we therefore aim at identifying subgroups of test takers with similar patter...