Table 3. Comparison of inter-rater reliability for video and audio thin slice ratings^*.

	Video thin slices				Audio thin slices
Variable	ICC	95% CI	Reliability	95% CI	ICC	95% CI	Reliability	95% CI
Patient Affect
Warm/ Friendly	0.47	0.41, 0.52	0.78	0.74, 0.81	0.38	0.33, 0.44	0.71	0.66, 0.76
Tense/ Anxious	0.24	0.18, 0.29	0.55	0.47, 0.63	0.26	0.20, 0.32	0.58	0.50, 0.65
Engaged / Attentive	0.44	0.38, 0.50	0.76	0.71, 0.80	0.45	0.40, 0.51	0.77	0.72, 0.81
Disagreeable/ Antagonistic	0.48	0.42, 0.53	0.78	0.74, 0.82	0.36	0.30, 0.42	0.69	0.64, 0.74
Upset/ Distressed	0.42	0.37, 0.48	0.74	0.70, 0.79	0.46	0.40, 0.51	0.77	0.73, 0.81
Sad / Depressed	0.46	0.41, 0.52	0.77	0.73, 0.81	0.35	0.29, 0.41	0.68	0.62, 0.74
Physician Affect
Warm/ Friendly	0.38	0.33, 0.44	0.71	0.66, 0.76	0.35	0.30, 0.41	0.69	0.63, 0.74
Tense/ Anxious	0.16	0.11, 0.22	0.44	0.33, 0.53	0.06	0.02, 0.11	0.21	0.06, 0.33
Engaged/ Attentive	0.38	0.32, 0.42	0.71	0.66, 0.76	0.37	0.31, 0.43	0.70	0.65, 0.75
Disagreeable / Antagonistic	0.35	0.29, 0.41	0.68	0.62, 0.73	0.32	0.26, 0.38	0.65	0.59, 0.71
Hesitant/ Uncomfortable	0.34	0.28, 0.40	0.67	0.61, 0.73	0.22	0.17, 0.28	0.54	0.45, 0.61
Rushed/ Hurried	0.34	0.29, 0.40	0.68	0.62, 0.73	0.18	0.13, 0.24	0.47	0.37, 0.56
Patient-Physician Rapport
Rapport	0.42	0.35, 0.48	0.68	0.62, 0.74	0.34	0.28, 0.41	0.61	0.53, 0.68
Liking	0.42	0.35, 0.58	0.68	0.62, 0.74	0.36	0.30, 0.43	0.63	0.56, 0.69
Attention	0.42	0.35, 0.48	0.68	0.62, 0.73	0.28	0.22, 0.35	0.54	0.45, 0.62
Coordination	0.39	0.32, 0.46	0.66	0.59, 0.72	0.31	0.24, 0.38	0.57	0.49, 0.64
Trust	0.43	0.36, 0.49	0.69	0.63, 0.74	0.33	0.26, 0.39	0.59	0.51, 0.66

^*ICC refers to a single rating; reliability refers to the mean across raters calculated using the Spearman-Brown formula.