Descriptive statistics and correlation coefficient
In this study, all provinces except Qinghai have more than 100 active users. The regional distribution of 108914 active Microblog users is shown in Figure 2.
Figure 2. The regional distribution of active Microblog users during the COVID-19 period (number of people).
We calculated the score of fear, collectivism and preventive intention score in 31 provinces by the day. In this study, the score of collectivism in the south is generally more significant than that in the north, which is consistent with the previous research of cultural psychology[20]. The average value of fear, collectivism and preventive intention in each province are shown in Figure 3.
Figure 3. The means of fear, collectivism, and preventive intention during the outbreak in 31 regions of the Chinese mainland.
The Pearson correlation analysis shows that: (a) fear is positively correlated with collectivism and preventive intention (p<0.001); (b) there is a positive correlation between collectivism and preventive intention (p<0.001). The descriptive statistics and correlation coefficient of all variables are listed in Table 1.
Table 1. Descriptive statistics and correlation coefficient.
|
Variables
|
M
|
SD
|
1
|
2
|
3
|
Fear
|
0.452
|
.235
|
1
|
|
|
Collectivism
|
0.428
|
.102
|
.202***
|
1
|
|
Preventive intention
|
0.328
|
.261
|
.351***
|
.326***
|
1
|
Note a) M refers to average value; SD refers to standard deviation; N=1302.
b) *p<0.05,**p<0.01,***p<0.001
The interaction of fear and collectivism on the preventive intention
A multiple regression model was established by the PROCESS for SPSS. Fear and collectivism, which are used to predict preventive intention, are the first to enter the equation. The results show that both fear and collectivism can positively predict the preventive intention (fear: β=0.324, t=11.685, p<0.001; collectivism: β=0.284, t=10.433, p<0.001). The Fear × Collectivism was then incorporated into the model to predict preventive intention jointly, the results show that the Fear × Collectivism regression coefficient is significantly (β = -0.134, t = -5.963, p < 0.001). The regression models are summarised in Table 2.
Table 2. The interaction of fear and collectivism on preventive intention.
Variable
|
Model 1
|
|
Model 2
|
β
|
t
|
|
β
|
t
|
Fear
|
0.324
|
11.685***
|
|
0.323
|
11.810***
|
Collectivism
|
0.284
|
10.433***
|
|
0.293
|
10.907***
|
Fear × Collectivism
|
|
|
|
-0.134
|
-5.963***
|
ΔR²
|
0.190
|
|
0.211
|
F
|
153.549***
|
|
116.942***
|
Note: *p<0.05,**p<0.01,***p<0.001
To explain the interaction of fear and collectivism on preventive intention clearly, we divided the collectivism and fear into high and low groups according to the mean value of ±1SD and conducted simple slope analysis.
The diagrams of simple effect are shown in Figure 4. Figure 4(a) show us, the fear positively predict preventive intention in low-collectivism group (β = 0.457, t = 12.944, p < 0.001), while the predictive power of fear to preventive intention declines in high-collectivism group (β = 0.189, t = 5.334, p < 0.001; β drops from 0.457 to 0.189). According to Figure 4(b), when fear is low, collectivism positively predict preventive intention (β = 0.404, t = 12.038, p < 0.001), while the predictive power of collectivism to preventive intention declines at a higher level of fear (β = 0.141, t = 3.901, p < 0.001; β drops from 0.404 to 0.141).
Figure 4. The interaction of fear and collectivism on preventive intention (simple slope analysis).
The Johnson-Neyman technique was performed to explore the critical value of a significant regression coefficient. The results show that: (a) the standardised coefficient β of fear on preventive intention is significant when the collectivism is lower than 0.603, and the β decreases with the increase of collectivism; (b) when collectivism is in the range of [0.603, 0.892], the β is not significant; (c) When collectivism is higher than 0.892, the β changes from positive to negative and increases with the increase of collectivism. The Johnson-Neyman slope was plotted in Figure 5.
Figure 5. The interaction of fear and collectivism on preventive intention (Johnson-Neyman analysis).