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. Author manuscript; available in PMC: 2026 Jul 23.
Published in final edited form as: Cortex. 2025 Jul 23;190:286–303. doi: 10.1016/j.cortex.2025.07.003

Table 2. Conversation Corpus Analytics.

Conversation corpus analytics (N = 1565) Mean/Total SD Range
Total word count (all conversations) Raw 8,701,010 n/a n/a
Cleaned 4,525,572 n/a n/a
Word count (mean per conversation) Raw 5559.75 1509 2005-16816
Cleaned 2891.73 779 996-9153
Exchange count (mean per conversation) Cleaned 440.91 156.70 132-1779
Words per-turn (mean per turn) Cleaned 3.52 1.13 1.08-12.72
Age difference (avg per conversation) Cleaned 13.1 9.62 1-44
Education difference (in years) Cleaned 2.11 1.81 0 to 11
Gender different? Cleaned 814 different (52%)
Race/ethnicity different? Cleaned 862 different (56%)

Note: We defined a turn as all uninterrupted words spoken by one person until the utterance was broken by their partner. An exchange was two successive turns.