Many studies have reported that tests are beneficial for learning (e.g., Roediger & Karpicke, 2006a). However, the majority of studies on the testing effect have been limited to a combination of relatively simple verbal tasks and final tests that assessed memory for the same material that had originally been tested. The present study explored whether testing is beneficial for complex spatial memory and whether these benefits hold for both retention and transfer. After encoding a three-dimensional layout of objects presented in a virtual environment, participants completed a judgment-of-relative-direction (JRD) task in which they imagined standing at one object, facing a second object, and pointed to a third object from the imagined perspective. Some participants completed this task by relying on memory for the previously encoded layout (i.e., the test conditions), whereas for others the location of the third object was identified ahead of time, so that retrieval was not required (i.e., the study condition). On a final test assessing their JRD performance, the participants who learned through test outperformed those who learned through study. This was true even when corrective feedback was not provided on the initial JRD task and when the final test assessed memory from vantage points that had never been practiced during the initial JRD.Keywords Testing effect . Retrieval practice . Transfer . Navigation . Spatial learning Retrieving information on a test benefits learning. Many studies have demonstrated this by presenting information to be learned (e.g., Swahili-English word pairs, such as Farasi: Horse) and then requiring participants to retrieve the information (e.g., Farasi: _____) or to spend an equivalent amount of time restudying it (e.g., Farasi: Horse). On a final test, information learned through retrieval is often remembered better than information learned through restudying (e.g., Roediger & Butler, 2011; see also Roediger & Karpicke, 2006a).Commonly referred to as the testing effect or retrieval practice, this finding has been demonstrated across a wide range of verbal materials, including word lists (e.g., Carpenter & DeLosh, 2006), face-name pairs (e.g., Carpenter & DeLosh, 2005), paired associates (e.g., Carpenter, 2009Carpenter, , 2011, foreign language vocabulary (e.g., Carrier & Pashler, 1992;Finn & Roediger, 2011;Kang, 2010;Pyc & Rawson, 2010), general knowledge facts (e. g., Kornell, Hays, & Bjork, 2009;McDaniel & Fisher, 1991), and text passages (e.g., Agarwal, Karpicke, Kang, Roediger, & McDermott, 2008;Butler, 2010;Kang, McDermott, & Roediger, 2007;Roediger & Karpicke, 2006b). Demonstrations of the testing effect have been so numerous and reliable that it has been featured in a practice guide for educators as an instructional technique to improve student learning that is supported by strong evidence (e.g., Pashler et al., 2007).Confidence in the educational benefits of testing is hindered by two major limitations, however. First, studies of the testing effect have been based almos...