Derivative

Gender

Educational Background

Purchasing experience

Male

(n = 57)

Female

(n = 39)

Design

(n = 59)

Off-design

(n = 37)

Yes

(n = 61)

None (n = 35)

A

13

7

13

7

13

7

B

13

10

15

8

16

7

C

31

22

31

22

32

21