Table 2 Factor structure of the comprehensibility and persuasiveness scales

(A) Comprehensibility scale

 1) Read

3.86

0.96

− 0.07

0.86

 2) Understand

3.80

0.95

− 0.07

0.93

 3) Remember

3.57

0.96

0.01

0.84

 4) Locate

3.60

0.89

0.00

0.87

 5) Keep

3.67

0.89

0.13

0.76

(B) Persuasiveness scale

 1) Believable

3.34

0.77

0.68

0.13

 2) Convincing

3.26

0.78

0.72

0.08

 3) Important

2.94

0.86

0.66

− 0.09

 4) Confident

2.95

0.83

0.77

− 0.08

 5) Friends

3.10

0.87

0.72

− 0.04

 6) Positive thoughts

3.04

0.78

0.73

− 0.05

 7) Agreeable

3.37

0.71

0.59

0.14