Table 4.

Objective and subjective knowledge of consumer knowledge groups

	Objective knowledge	Subjective knowledge
Knowledge groups	Mean (SD)a	Mean (SD)a	t
IG	1.58 (0.71)	1.63 (0.48)	−1.577
OG	1.87(0.53)	3.04 (0.19)	−26.012***
UG	3.13 (0.38)	1.71 (0.46)	32.986***
KG	3.25 (0.43)	3.02 (0.13)	7.079***
Total	2.20 (0.95)	2.13 (0.76)	2.397*

Notes: *p <.05, ***p <.001. ^aThe mean scores are calculated based on a 4-point scale. IG = ignorance group; OG = overestimation group; UG = underestimation group; KG = knowledge group.