Many studies have shown that students learn better when they are given repeated exposures to different concepts in a way that is shuffled or interleaved, rather than blocked (e.g., Rohrer Educational Psychology Review, 24, 355-367, 2012). The present study explored the effects of interleaving versus blocking on learning French pronunciations. Native English speakers learned several French words that conformed to specific pronunciation rules (e.g., the long "o" sound formed by the letter combination "eau," as in bateau), and these rules were presented either in blocked fashion (bateau, carreau, fardeau . . . mouton, genou, verrou . . . tandis, verglas, admis) or in interleaved fashion (bateau, mouton, tandis, carreau, genou, verglas . . .). Blocking versus interleaving was manipulated within subjects (Experiments 1-3) or between subjects (Experiment 4), and participants' pronunciation proficiency was later tested through multiple-choice tests (Experiments 1, 2, and 4) or a recall test (Experiment 3). In all experiments, blocking benefited the learning of pronunciations more than did interleaving, and this was true whether participants learned only 4 words per rule (Experiments 1-3) or 15 words per rule (Experiment 4). Theoretical implications of these findings are discussed.
Keywords Interleaving . Pronunciation learning . Discriminative contrastIn academic settings, students are often given multiple exposures to different concepts. Under typical conditions, a particular concept (e.g., conjugating foreign verbs in the present tense) is practiced over and over again before moving on to the next concept (e.g., conjugating foreign verbs in the past tense). However, recent evidence suggests that it may be more beneficial to present different concepts in an order that is shuffled and less predictable (e.g., practicing a present-tense conjugation followed by a past-tense conjugation, followed by more present-tense conjugations, etc.). For example, Rohrer and Taylor (2007) taught students to calculate the volume of 4 different types of solid figures. Students worked through practice problems in an order that was either blocked by type of figure (i.e., all problems pertaining to one type of figure were finished before the student moved on to the next type of figure) or interleaved such that the same problems appeared in an order that was shuffled and unpredictable. On a later test requiring students to calculate the volumes for similar types of figures, students scored higher if they had learned the information through interleaving, as compared with blocking.Other studies have reported benefits of interleaving on the learning of geometric concepts (e.g., Taylor & Rohrer, 2010) and algebraic rules (e.g., Mayfield & Chase, 2002). A small but growing number of studies has also reported benefits of interleaving for other types of cognitive and motor tasks as well (for reviews, see Dunlosky, Rawson, Marsh, Nathan, & Willingham, 2013;Rohrer, 2012). For example, Kornell and Bjork (2008) taught participants to classify...