Children with reading difficulties have problems recognising words accurately and quickly (Müller et al., 2020). The most commonly recommended method to automate word recognition is repeated reading (Hattie, 2009; NICHD, 2000; Therrien, 2004). In repeated reading, students read the same text aloud repeatedly for a defined number of times (Meyer & Felton, 1999) or until they achieve an established improvement in reading accuracy and reading speed (Samuels, 1979). This repeated reading allows readers to better memorise the written image of the words, resulting in an immediate increase in the number of correctly read words and to positive emotions (Chard et al., 2002; Stevens et al., 2017). In the medium term, these lead to higher levels of students’ reading performance and reading motivation, which are frequently reported as positive outcomes of repeated reading interventions when compared with a control group (NICHD, 2000; d = 0.41). However, these effects seem to depend on how well the method of repeated reading fits to a student’s individual reading abilities (Chard et al., 2009; Therrien, 2004). For instance, Fuchs et al. (2021) found that the lowest-performing students profited more from a phonological awareness intervention than from a repeated reading intervention. These differential effects are consistent with a review by Chard et al. (2009), indicating that repeated reading does not improve the reading achievement of all students alike. The question remains whether the effects of repeated reading also depend on the reading material. It is still unclear whether reading continuous texts or whether reading word lists is equally or even more appropriate, and whether the material’s appropriateness depends on students’ prior reading skills. On the one hand, a continuous text could facilitate the reading flow of higher-performing readers by embedding words in context and thus automate word recognition. This assumption is in line with top-down processes in cognitive models of reading comprehension (e.g., Kintsch, 1988), which assume that a reader’s prior knowledge and context can facilitate automatic word recognition by providing expectations about the words that are likely to appear next. Accordingly, Therrien & Kubina (2007) found that context increased both reading speed and word recognition compared to isolated words (N=16). On the other hand, isolated words might improve automatic word recognition by allowing readers to focus on smaller components first. This idea corresponds with bottom-up processes in cognitive reading models (Kintsch, 1988), assuming that reading comprehension depends on the speed of automatic word recognition. If a reader’s automatic word recognition is still very low, context may have less effect because this information is not available in a reader’s working memory. It could thus be helpful for lower-performing readers to focus on isolated words where no propositions need to be formed. Correspondingly, Levy et al. (1997) reported positive effects for reading word lists on reading fluency (N=28). In sum, prior research supports the effectiveness of repeated reading interventions, but effects may depend on the reading material and on students’ reading abilities. This study therefore aims at better understanding the effects and the process of repeated reading by addressing the following research questions: 1. Are there differences after a repeated reading intervention with continuous texts (EG1), word lists (EG2) and a control group (CG) regarding students’ reading achievement and reading motivation? 2. Are there differences during a repeated reading intervention using continuous texts vs. word lists regarding a) the number and development of words read correctly, and b) the average level and development of affect? 3. Are effects of the reading material on students’ a) reading achievement and b) reading motivation mediated by the level and by the progress of a) words read correctly and b) affect during the intervention? 4. Are the effects of the material on reading achievement and reading motivation moderated by students’ initial reading performance? The results will expand both our understanding of how readers develop word recognition skills and how repeated reading interventions should be implemented in classrooms to support children with reading difficulties.