Although the testing effect has received a substantial amount of empirical attention, such research has largely focused on the effects of tests given after study. The present research examines the effect of using tests prior to study (i.e., as pretests), focusing particularly on how pretesting influences the subsequent learning of information that is not itself pretested but that is related to the pretested information. In Experiment 1, we found that multiple-choice pretesting was better for the learning of such related information than was cued-recall pretesting or a pre-fact-study control condition. In Experiment 2, we found that the increased learning of nonpretested related information following multiple-choice testing could not be attributed to increased time allocated to that information during subsequent study. Last, in Experiment 3, we showed that the benefits of multiple-choice pretesting over cued-recall pretesting for the learning of related information persist over 48 hours, thus demonstrating the promise of multiple-choice pretesting to potentiate learning in educational contexts. A possible explanation for the observed benefits of multiple-choice pretesting for enhancing the effectiveness with which related nontested information is learned during subsequent study is discussed.Keywords Pretesting . Testing effects . Learning . Multiple choice . Test-potentiated learning That pretesting can potentiate the learning of pretested information during subsequent study has been demonstrated for a variety of materials and across a variety of methodologies (e.g., Arnold & McDermott, 2013;Kornell, Hays, & Bjork, 2009). This finding has clear applications for learning in educational contexts (Anderson & Biddle, 1975;Kane & Anderson, 1978;Pressley, Tanenbaum, McDaniel, & Wood, 1990;Richland, Kornell, & Kao;Rothkopf, 1966). Relatively little work, however, has examined whether such pretesting can also potentiate the learning of information that was not itself pretested, or instead, whether the learning of such information might be impaired by such pretesting. This question is particularly pertinent to conditions in which such non-pretested material is related to, and thereby potentially confusable or competitive with, the specifically pretested information.The issue raised previously is important because students are often presented with large amounts of related and thus potentially confusable information (e.g., anatomy, geography, history courses), and they are sometimes pretested on subsets of that information (e.g., with Bclicker^questions presented at the beginning of a lecture), followed by more comprehensive exams that would actually count toward their grades and that would include the testing of non-pretested related information as well. Of particular interest in the present research was whether, and if so how, pretesting might improve the learning of such related, and thus possibly competitive, non-pretested information. The present research