Hedonic scale (1 to 9) was used, in which the highest value indicates the highest degree of preference.
Hedonic scale (1 to 9) was used, in which the highest value indicates the highest degree of preference.
喜好等级使用数字1到9，数值愈高表示较为偏爱。
Hedonic scale (1 to 9) was used, in which the highest value indicates the highest degree of preference.
喜好等级使用数字1到9，数值愈高表示较为偏爱。