This thesis examines to what extent the long midvowels [eː], [oː], and [øː] are diphthongised in L1 Dutch and whether phonetic transfer of these diphthongisation patterns from L1 Dutch to L2 German...Show moreThis thesis examines to what extent the long midvowels [eː], [oː], and [øː] are diphthongised in L1 Dutch and whether phonetic transfer of these diphthongisation patterns from L1 Dutch to L2 German occurs. In order to collect data to answer the research questions, two recorded scripts, one in L1 Dutch and one in L2 German, from 29 participants between 18 and 25 years old are analysed. The script involves 15 words, five per phoneme, in both languages. These phonemes are measured for their vowel duration and the corresponding formant values for F1 and F2 at 25% and 75% of the vowel duration. In doing so, figures are constructed signifying a line of diphthongisation for each phoneme. Additionally, the data are analysed per word and per participant, and are compared to the average results of all participants together. The results suggest that the phonemes [eː], [oː], and [øː] are diphthongised in L1 Dutch and that phonetic transfer occurs as predicted by Flege’s (1988, 1990, 1991, 2007) Speech Learning Model.Show less