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Chance level for these correlations is 0; thus video-only (VID) for squeals, vocants, and growls was not above chance level. The very low correlations suggest that VID provided little if any significant information about protophone type. On the other hand, audio-only (AU) and audio-video (AV) both yielded significant information on all three vocal types. 95% confidence intervals are included. Kappas at the top of the figure are means.
