Step

Variable entered/removed

Number in

Partial R2

Model R2

P > F

1

Multimedia preference

1

0.2132

0.2132

0.0001

2

Icons (alone) organization and design

2

0.0401

0.2534

0.0003

3

Text (alone) organization and design

3

0.0073

0.2607

0.1151

4

Hyperlinks semantic

4

0.0094

0.2700

0.0736