Crash modules to help Persians speak more intelligible and comprehensible English, emphasizing either production or perception of either sounds or melodies

Yenkimaleki and van Heuven (2021) studied the effects of teaching either segmental or suprasegmental (prosodic) aspects of English, in combination with either perception or production-focused practice (four combinations in all) on the speech intelligibility and comprehensibility of Persian L1 learners of English as a foreign language. Generally, production-focused exercises were more effective but there was no overall effect of teaching segmentals versus prosody. However, the specific combination of emphasis on prosody and production-oriented exercises was most beneficial. We summarize the results of the study and present, more systematically and in more detail than in the original article, the materials and teaching methods used.