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Table 1 Scale design

From: Investigating the influence of online interpersonal interaction on purchase intention based on stimulus-organism-reaction model

Construct Code Measures Sources
Perceived expertise A10_1 Some users in WeChat’s Moments are very knowledgeable about many brands or products Liu et al. [6]
A10_2 Some users in WeChat’s Moments are experts on many brands or products
A10_3 Some users in WeChat’s Moments are highly experienced in consuming the products
A10_4 Compared to other similar social media, WeChat has a lot of information and knowledge about brands or products
Perceived similarity A11_1 With regard to the styles in brands or products, I am similar to some users in WeChat’s Moments Liu et al. [6]
A11_2 With regard to the tastes in brands or products, I am similar to some users in WeChat’s Moments
A11_3 With regard to my likes and dislikes about brands or products, I am similar to users in WeChat’s Moments
A11_4 With regard to preferences in brands or products, I am similar to users in WeChat’s Moments
Perceived familiarity A12_1 Users in WeChat’s Moments are as familiar to me as good friends Liu et al. [6]
A12_2 I maintain close contacts with users on the WeChat Moments
A12_3 I have frequent interactions with other users on the WeChat Moments through commenting or replying behaviors
A12_4 I often communicate with users in the WeChat Moments
Informational influence A13_1 If I have little experience with a product, I usually ask usersin the WeChat Moments about the product Bearden et al. [32]; Shen et al. [15]
A13_2 I often consult other users on the WeChat Moments to help choose the best products
A13_3 In order to purchase the right product, I usually observe what other usersof the WeChat Moments are buying and using
A13_4 I often collect information from users in the WeChat Moments about a product before I buy it
Normative influence A14_1 It is very important to me whether the users in the WeChat Moments like the products and brands I buy Bearden et al. [32]; Shen et al. [15]
A14_3 I achieve a sense of belonging by purchasing the same products or brands that other users of the WeChat Moments purchase
A14_4 I hope that my friends on the WeChat Moments will like the products I purchase online
Purchase intention A15_1 I obtained product information from the WeChat Moments and have purchased the product Bai et al. [33]
A15_2 I obtained product information from the WeChat Moments and immediately purchased the product
A15_3 I obtained product information from WeChat Moment and might purchase the product in the future
  1. A14_2 was deleted after pre-testing