Communications Psychology

Table 4 Cluster analysis on information-sharing

From: Three diverse motives for information sharing

Exp1						Replication
Uncertainty-Dominant Group						Uncertainty-Dominant Group
Motives	Mean β	95% CI	t	df	p	Motives	Mean β	95% CI	t	df	p
Uncertainty	0.457	[0.39, 0.52]	13.94	42	<0.001	Uncertainty	0.466	[0.41, 0.52]	16.75	48	<0.001
Valence	0.049	[−0.003, 0.10]	1.89	42	0.06	Valence	0.050	[0.006, 0.09]	2.28	48	0.026
Instrumentality	0.11	[0.05, 0.16]	3.83	42	<0.001	Instrumentality	0.049	[−0.01, 0.11]	1.45	48	0.15

Instrumentality-Dominant Group						Instrumentality-Dominant Group
Motives	Mean β	95% CI	t	df	p	Motives	Mean β	95% CI	t	df	p
Uncertainty	0.073	[0.005, 0.14]	2.19	31	0.03	Uncertainty	0.100	[0.03, 0.17]	3.01	32	0.004
Valence	0.096	[0.02, 0.17]	2.59	31	0.01	Valence	0.050	[0.007, 0.09]	2.38	32	0.02
Instrumentality	0.685	[0.61, 0.75]	19.39	31	<0.001	Instrumentality	0.714	[0.64, 0.78]	20.64	32	<0.001

Valence-Dominant Group						Valence-Certainty-Dominant Group
Motives	Mean β	95% CI	t	df	p	Motives	Mean β	95% CI	t	df	p
Uncertainty	−0.303	[−0.40, -0.20]	−6.21	38	<0.001	Uncertainty	−0.380	[−0.31, −0.09]	−6.46	19	<0.001
Valence	0.171	[0.07, 0.27]	3.47	38	0.001	Valence	0.104	[0.09, 0.24]	1.92	19	0.06
Instrumentality	−0.074	[−0.001, −0.14]	−2.07	38	0.044	Instrumentality	0.015	[−0.06, 0.09]	0.34	19	0.73

Decisions revealed that participants were clustered into the following three groups “Uncertainty-Dominant Group”, “Instrumentality-Dominant Group” and “Valence-Certainty-Dominant Group”. For each cluster a one-sample t-test was performed for each beta.

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