Table 1: Mean ranks of ratings of both techniques.

Face InterfaceMouseMann-whitney
Significance

General evaluation10.214.844.5n.s.
Difficulty8.616.425.0P < 0.01
Speed9.415.635.0P < 0.05
Accuracy7.817.215.5P < 0.01
Efficiency9.715.338.0n.s.
Enjoyableness10.314.843.5n.s.