TABLE 1.

Frequencies (n) and proportions (%) of different types of contributions in the IFADV corpus with associated mean and median gap durations in seconds, 95% confidence interval of the means.

Contribution	n	%	Mean	95% CI		Median
Excluded contributions
(1) Noise, laughter, not understood	945	13	−0.212	−0.272	−0.151	−0.181
(2) Slips and interruptions	640	9	0.018	−0.053	0.088	0.093
Total	1447	20
Backchannels
(3) Generic BCs	127	2	−0.051	−0.228	0.126	0.103
(4) Single words	877	12	−0.178	−0.229	−0.126	−0.004
(5) Combinations	323	5	−0.316	−0.410	−0.222	−0.252
Total	1327	19	−0.184	−0.228	−0.139	−0.036
(6) Continuations-after-BC	1080	15	0.543	0.503	0.583	0.390
(7) Utterances beginning with filler	218	3	−0.032	−0.155	0.091	0.114
(8) Utterances beginning with particle	1080	15	−0.126	−0.174	−0.077	0.000
(9) Remaining contributions	1940	27	−0.081	−0.118	−0.043	−0.065
Grand Total	7092