*3.3. Validity and Common Method Bias*

Firstly, we test the possible problem of common method bias. According to a study of Podsakoff and Organ [67], Harman's one-factor test could be utilized. This method has been widely used in previous studies. The results show that there is no significant problem of common method bias because the largest factor in this study only explained 38.121% of the entire variance. Secondly, the validity of the samples is conducted. The results show that all factor loadings are greater than 0.7 and none were below 0.6. Thus, the validity of the samples is very high in this study.
