Table 4.1. Summary of word counts for each task.

120

Table 4.2. Interview length for each task.

120

Table 4.3. Interview length for each part and band.

121

Table 4.4. Turn length for each task.

121

Table 4.5. Turn length for each part.

122

Table 4.6. Turn length for each part and band.

122

Table 4.7. Average turn rating for each task.

123

Table 4.8. Average turn rating for each part.

124

Table 4.9. Average turn rating for each band.

124

Table 4.10. Disfluency index for each task.

126

Table 4.11. Disfluency index for each part.

126

Table 4.12. Disfluency index for each band.

126

Table 4.13. ASU length for each task.

127

Table 4.14. ASU length for each part.

127

Table 4.15. ASU length for each band.

128

Table 4.16. ASU index (A2) for each task.

129